Blue Dot Warning [Archive] - Glock Talk

PDA

View Full Version : Blue Dot Warning


kazager
07-25-2008, 18:38
Attached is a letter I rec'd through e-mail regarding Blue Dot powder useage in 357 & 41 mag.
<img src="http://glocktalk.com/forums/attachment.php?attachmentid=154332&d=1217032669"/>

Hoser
07-26-2008, 10:57
I have always known Blue Dot was a crappy powder with a wicked fast pressure spike. I tried it in 38 Super way back. Never again.

Zombie Steve
07-26-2008, 15:14
I appreciate the head's up!

I just bought some Blue Dot (never tried it before) to load some .357 mag (never loaded those before)... I used a 140 grain JHP, so according to this I should be alright, but I'll keep an eye on it and work up a little slower than normal.

Thanks again.

_The_Shadow
07-26-2008, 17:16
Blue Dot has been a supeb powder for me. I use it in 12 ga., 38 spl/357 mag, 44 spl/44 mag, 9mm, 40S&W, 10mm and some rifle rounds.

I have used it for the 125 gr loads in 357 mag, maybe I'm lucky! I have loaded 14.0 grains under the 122 gr. cast LEE TC 9mm bullet sized to 357" they were some of the most accurate rounds from my S&W mod. 19, 6" barrel.

Now the powder I have been loading is the Hercules stock from 80's. I also have 5 lbs of the newer Alliant plastic jug...I'll be a little more cautious and rework up the loads to check for changes from the newer lot# Dec of 2002.

Be safe!

dudley
07-27-2008, 12:27
Attached is a letter I rec'd through e-mail regarding Blue Dot powder useage in 357 & 41 mag.
http://glocktalk.com/forums/attachment.php?attachmentid=154332&d=1217032669
I have fired almost 2000 rounds of Sig 357 using Blue Dot. Hmmmm, was just about to buy some more Blue Dot, maybe I'll rethink this. SPECIAL NOTE: Alliant's reload data page is down for "maintenance"

dougader
07-27-2008, 21:17
Same here, although the only powder I have used was in 5# kegs in the early 90's.

Funny. Blue Dot has been my main powder in 357 magnum, with loads from the older Speer 11 manual. I love those 125 jhp's with 14.5 - 15.0 grains of BD. Just DO NOT use magnum primers. I've loaded everything from 125's - 168 Keith style SWC's with Blue Dot.

Also have used BD in 44 mag, 45 Colt, 9mm, 9x23 Win, 38 Super and 12 gauge. I guess I'll use up the powder I have and be more careful working up new loads.... I have thinking of switching to AA9 for some loads anyway....

Blue Dot has been a supeb powder for me. I use it in 12 ga., 38 spl/357 mag, 44 spl/44 mag, 9mm, 40S&W, 10mm and some rifle rounds.

I have used it for the 125 gr loads in 357 mag, maybe I'm lucky! I have loaded 14.0 grains under the 122 gr. cast LEE TC 9mm bullet sized to 357" they were some of the most accurate rounds from my S&W mod. 19, 6" barrel.

Now the powder I have been loading is the Hercules stock from 80's. I also have 5 lbs of the newer Alliant plastic jug...I'll be a little more cautious and rework up the loads to check for changes from the newer lot# Dec of 2002.

Be safe!

Washington,D.C.
07-27-2008, 22:56
I have fired almost 2000 rounds of Sig 357 using Blue Dot. Hmmmm, was just about to buy some more Blue Dot, maybe I'll rethink this. SPECIAL NOTE: Alliant's reload data page is down for "maintenance"

They are updating the webpage load data. The new data is already available for download if you download the 2008 load guide in PDF. It has the new data.


http://www.alliantpowder.com/

http://glarp.atk.com/2008/2008_Catalogs/AlliantPowderCatalog.pdf

dougader
07-28-2008, 12:13
Its just bizarre... in 357 mag they show data for 110, 140, 158 and 170 grain GDHP's... but NOT the 125??? If they say so....

KIDCOP
07-28-2008, 20:00
Funny. Blue Dot has been my main powder in 357 magnum, with loads from the older Speer 11 manual. I love those 125 jhp's with 14.5 - 15.0 grains of BD. Just DO NOT use magnum primers. I've loaded everything from 125's - 168 Keith style SWC's with Blue Dot.

Bluedot is My Favorite .357 Mag powder and use data from the old Speer #9. The Speer 10 didn't have any data for Blue in 357 as they had some sort of problem. Then the Speer 11 came out. The 357 Bluedot data was over the top for all bullet weights. In Speers 12 and 13 the 357 Bluedot data has been lowered for a reason. If I was shooting 357 Bluedot loads built from Speer 11, I would not shoot them in a pistol I liked.

dougader
07-28-2008, 21:45
Bluedot is My Favorite .357 Mag powder and use data from the old Speer #9. The Speer 10 didn't have any data for Blue in 357 as they had some sort of problem. Then the Speer 11 came out. The 357 Bluedot data was over the top for all bullet weights. In Speers 12 and 13 the 357 Bluedot data has been lowered for a reason. If I was shooting 357 Bluedot loads built from Speer 11, I would not shoot them in a pistol I liked.

My loads have been safe in my guns with my older kegs of powder that were purchased before Speer 12, 13, and 14 came out. If I had newer batches of BD, I would definitely use the newer data in Speer 14. I have never worked up to a MAX published load with BD/357 mag with the Speer 11 data.... my load development stopped at 15.2/125 jhp, 13.6/140 jhp, 12.5/158 jhp, and 10.0/168 hardcast Keith SWC.

The only real problem I ever had with BD was once when I absentmindedly substituted magnum primers in a max load with Sierra 140 jhp that had been worked up with standard primers... I had sticky case extraction and flattened primers. Other than that, I didn't like the results I got when working up loads in 9x23 Winchester. AA7 proved to be a better powder in that caliber.

KIDCOP
07-29-2008, 19:14
My loads have been safe in my guns with my older kegs of powder that were purchased before Speer 12, 13, and 14 came out. If I had newer batches of BD, I would definitely use the newer data in Speer 14. I have never worked up to a MAX published load with BD/357 mag with the Speer 11 data.... my load development stopped at 15.2/125 jhp, 13.6/140 jhp, 12.5/158 jhp, and 10.0/168 hardcast Keith SWC.

The only real problem I ever had with BD was once when I absentmindedly substituted magnum primers in a max load with Sierra 140 jhp that had been worked up with standard primers... I had sticky case extraction and flattened primers. Other than that, I didn't like the results I got when working up loads in 9x23 Winchester. AA7 proved to be a better powder in that caliber.


I'm on the last of my keg of Bluedot which was also purchased before Speer 11 came out. I did not go as high as you have. The 140 is my favorite bullet in 357.

dougader
07-29-2008, 20:12
I'm on the last of my keg of Bluedot which was also purchased before Speer 11 came out. I did not go as high as you have. The 140 is my favorite bullet in 357.

I ended up using a lot more 140's after a few years of loading, too. I liked the Sierra 140 jhc because back then the price was better, they were incredibly accurate and i liked the way they tore up anything they hit. Coincidentally, the 13.6 gr BD under the Sierra 140 jhc is listed as a max load in the Sierra data I have.

Even though I worked up to 15.2 grains BD with the 125 jhp, my usual load was 14.5 grains. And I rarely loaded 158 grain jhp's. As I got into loading heavier slugs at that weight, I tended to go to the Keith style 168 SWC's I got from a local caster. Very accurate and with the 10.0 grains of BD it looked like I had room to move up if I wanted it (relatively light recoil and no pressure signs at all)... but I never did because that load used to bowl over the 200 meter rams in IHMSA matches if I did my part, and that was from a 4" GP100, lol.

Zombie Steve
08-02-2008, 14:01
Just a quick :bump: in case anyone missed it.

albyihat
08-03-2008, 20:53
this is a great post ty for putting it up i use 2400 in my .357 but i have used BD before when i run out of 2400.

f4tweet
08-09-2008, 21:47
Good to find out. I loaded and fired about 100 rounds with 210gr XTP in .41 Mag. I also bought it for 10MM. No problems.

Crazy4nitro
08-13-2008, 16:07
I have 5# of 1992 stock BD. I have been looking for a load so I can Burn some of it up.
I Love the 125's in the .357 with a Heap of H110 to Burn.
I have Used BD in the .41 as well but I never found a load I liked.
Once again...I found myself reaching for H110.

'Nitro

f4tweet
08-13-2008, 16:20
I called them yesterday, and they confirmed the warning. I told them I had used BD up to 12.5gr in and OM .41 Mag. B'hawk with a 5.5" barrel with no problems. They said to limit the powder to 10 gr. They said that would be 1100 fps. Not what I was looking for. They said to go to 2400 for more speed. There are some pressures spikes with BD. They are going to work up some new recipes and publish them on their site. Anybody want to buy a # of BD?

SpeedReload
08-18-2008, 08:57
I have used a great many canisters of BD in 357 and 41. No problems and some pretty good velocities.

Highspeedlane
08-21-2008, 18:31
Well....

First I have heard of this...I bought a pound late last March and worked up two groups of load for .357 using Remington 110gr JHP and 158gr JHP.

This pic is one of the 110's going off in a 686 for a night shot. I did notice an ever so slight flattening of primers (nothing alarming) and the load is below the listed max in (IIRC) the Sierra manual I drew from.

Anyway, now I'm on a .45 Colt kick, so the .357 BD loads are shelved for time being.

http://highspeedlane.net/milforum/gallery/d/68-2/IMG_3160.JPG

Apocalypse_Now
09-04-2008, 11:55
I've used Blue Dot for 110 grain and 125 grain .357 Magnum JHP loads for 20+ years, and will continue to do so

gary newport
09-12-2008, 18:05
I've used Blue Dot for 110 grain and 125 grain .357 Magnum JHP loads for 20+ years, and will continue to do so

Yeah, what do those guys at Alliant know anyway? :whistling:

_The_Shadow
09-12-2008, 19:39
Highspeedlane (http://glocktalk.com/forums/member.php?u=91274),
Well....

First I have heard of this...I bought a pound late last March and worked up two groups of load for .357 using Remington 110gr JHP and 158gr JHP. I can't recall without looking up notes but I remember the 158 was using 16 grains BD.

You may want to check that 158 grain bullet loading over what you are recalling...16 grains of Blue Dot is a pile in the 357 magnum. I would think give or take a little, 10 or 11 grains to be near the maximum in that bullet weight.

I would hate to see someone jump on that load you listed!

Fastbear
09-17-2008, 07:46
Well....

First I have heard of this...I bought a pound late last March and worked up two groups of load for .357 using Remington 110gr JHP and 158gr JHP. I can't recall without looking up notes but I remember the 158 was using 16 grains BD.

This pic is one of the 110's going off in a 686 for a night shot. I did notice an ever so slight flattening of primers (nothing alarming) and the load is below the listed max in (IIRC) the Sierra manual I drew from.

Anyway, now I'm on a .45 Colt kick, so the .357 BD loads are shelved for time being.

http://highspeedlane.net/pixelgem/gallery/d/131-1/IMG_3160.jpg

Great night shot Highspeed. Been shooting new Glock 20 and wifes 29 with Blue Dot. Powder makes the guns perform quite well and the spent cases have no visable issues.:cool:

sns3guppy
10-18-2008, 03:48
I've used blue dot for years. I got a good deal on it originally, and used it until it ran out...then got a good deal on high score 700X and used that. I'm not married to a powder or a load.

380Seecamp
11-23-2008, 16:06
My first handloading experience used Blue Dot in a .41 Magnum (price of ammo forced me to get into reloading). I've never had a problem with BD loads except for the excessive muzzle flash.

There are too many other fine powders out there to continue to mess with BD. Once my current Lb. of BD is used up, I'm through with it.

goldenlight
11-26-2008, 01:16
I've been loading Blue Dot for at least 30 years. I started with the 44 magnum (thanks to Dirty Harry...) and then with 357 later

I used to buy boxes of 1000 or 2000 125gr. 357 jacketed soft point from Midway. Back in the good old days when they were cheap, and the shipping was free. :crying:

I loaded almost all of the 125 gr. JSP with Blue Dot. My old Speer #9 manual lists 14.5gr of Blue Dot as max for the 125gr. slug. BUT that's with a regular small pistol primer; NOT a magnum.

I never use magnum primers. Standard small primers are fairly consistent between the big four American manufacturers. But The small magnum primers seem to vary a LOT from CCI to Rem. to Win. to Federal. I stopped using them early on.

I loaded 13.5 to 14.5gr. with the 125gr slugs. I never had a problem.

Blue dot doesn't deliver the top velocity that, say H110 can, but I get 'nearly' the same velocity, with much lower charge weight, and without having to use magnum primers.

I don't understand this 'change' for Blue Dot. I've used my loads in 2 inch, 4 inch, and 6 inch 357 magnums. And I've never had a problem.

I wonder if Alliant turned out some 'bad' batches of Blue Dot?

CanyonMan
12-05-2008, 11:35
Never a problem with it......


CM

OV1kenobi
12-20-2008, 00:58
That really is a shame!

12.7 grains of Blue Dot with a 125 grain Hornady XTP bullet really was a snappy, yet very manageable and accurate load in .357 Magnum out of a S&W Model 66 with four-inch barrel!

Regards

Zombie Steve
12-20-2008, 11:55
I would think if it was a bad batch, they would have recalled the batch, not the load data...

dudley
12-24-2008, 11:56
I've shot 2500 rounds this year 357Sig with 10.0 gr bluedot, not problems here

Highspeedlane
04-19-2009, 16:25
Highspeedlane (http://glocktalk.com/forums/member.php?u=91274),


You may want to check that 158 grain bullet loading over what you are recalling...16 grains of Blue Dot is a pile in the 357 magnum. I would think give or take a little, 10 or 11 grains to be near the maximum in that bullet weight.

I would hate to see someone jump on that load you listed!

You are exactly right and my bad for trying to post from my obviously faulty memory. I've edited that post. From now on I'll be looking at my notes.

HAVOC
04-19-2009, 16:31
You'll have to take the Blue Dot from my cold, dead hands. I've loaded thousands of the now supposedly dangerous recipes and all my guns have all their parts. It's my preferred mid-high power load in .357 Mag, .45 ACP, .44 Mag and .45 Colt and high power in 9mmP and 10mm, with some use in .45ACP and .44 Special.

f4tweet
04-19-2009, 17:11
357 Sig also. Big flash!

dougader
04-19-2009, 17:28
Interesting comparison on the CB forum comparing Hercules Blue Dot and the newer Alliant Blue Dot:

http://castboolits.gunloads.com/showthread.php?t=51566

.454
06-28-2009, 13:07
I tried reloading 45 Colt and .454Casull with BD. Accuracy sucked no matter what formula I tried. Back to Win 296 and Unique.

lomfs24
10-01-2009, 22:55
I have fired almost 2000 rounds of Sig 357 using Blue Dot. Hmmmm, was just about to buy some more Blue Dot, maybe I'll rethink this. SPECIAL NOTE: Alliant's reload data page is down for "maintenance"

Of course this letter was posted for 357 Mag but I too have shot BD out of 357 Sig and have been quite happy with it. I would not recommend it if you ever needed to shoot at night. Horrible muzzle flash but no signs of over pressure.

I have also shot BD from 357 Mag with no issues either. I don't have a 357 anymore so no worries at the moment.

f4tweet
10-01-2009, 23:32
I switched over to AA-9 and am much happier with it in 357 Sig and 10MM.

lomfs24
10-02-2009, 06:48
I'll give AA-9 a shot. (No pun intended)

stengun
10-13-2009, 20:29
Howdy,

I too have been using BD for years. Actually since 1994.

I love BD for magnum or maxinum auto pistol loads, especially in the 10mm.

I use it for .380, 9mm, 9mmx21, 9mmx23, 40S&W, 10mm, .45acp, .45 Super, .45 Colt and .454 Casull.

I've never had any problems.

Paul

den888
11-15-2009, 20:11
Used BD in 9mm loads in the past with no issues. Thanks for the warning.

dudley
12-11-2009, 00:33
This is like a year old?
How about letting this thread die?

hoffy
01-10-2010, 14:58
:agree:

nevadajohn
02-12-2010, 19:15
Iv'e been loading Blue Dot for 30 years,unless they changed it I don't see a problem.There are more good powders now,but when Blue Dot came out it was better than 2400 and H110,which both left 10 to 20 percent unburned powder.Or Unique that was dirty.Since the warning Iv'e shot .357,.41,10mm and.40's with no problem.I have noticed that some of the older Speer manuals are loaded hotter than the new ones.I use 12 grains with 125's and 10 grains with the 158's.:wow:

380Seecamp
02-12-2010, 19:39
Iv'e been loading Blue Dot for 30 years,unless they changed it I don't see a problem. . . .

They changed it. That's what caused this whole problem!

hogship
05-22-2010, 08:49
I've been using Blue Dot for 158g cast bullets in 357mag.......loaded down in a "Cowboy load"......should be ok for this purpose........


.....but, I'm adding this note to my reloading data.

thanks for the "heads up".

hog

hogship
05-22-2010, 09:05
After retrieving my load notes, I see I have a 357mag load using 125g copper plated bullets and Blue Dot powder........that load is now noted with the warning.

thanks

hog

OrangePwr9
08-03-2010, 10:55
Just saw this. Haven't used BD much in the past, but picked up 5 lbs. last year when 2400 and W296 were hard to find.

Last fall I loaded 100 rounds .357 125 gr. JHP using magnum primers (Winchester) and 11.6 gr. of Blue Dot. Then I loaded 50 more rounds of the same combo using 12.6 gr. BD. Thought they'd be safe enough as they both were below starting load in at least one of my manuals.

None of these have been fired. What think you? Teardown???

If I shoot 'em, it'll be in either a 586 or a Blackhawk.
Thanks,
Bob

dougader
08-14-2010, 11:47
They'll be fine. I used to load 14.5 grains BD under a 125 grain jhp in 357 mag... that's back when Speer 11 said 16.3 (?) was the max. I never went above 15.2

rhino673
10-08-2010, 09:34
I load 158gr LSWC with 9.0 grains of Blue dot. I've not had any problems at all.

bear10
11-22-2010, 13:38
I have used Blue Dot since I started loading 357 loads for silhouette shooting years ago(1987) and have recently loved using it in my 10mm. I especially love the flash of my 10mm loads when shooting indoor IDPA shoots.:embarassed:

Dasglockenspiel
02-04-2011, 00:33
Gents:

FWIW: I have had good success with 9mm x 19mm with 115gr and 8.0 Gr Blue Dot w/ 1.120 OAL. The compressed load burns far cleaner than a stanadard load in other calibers such as 38 spcl.

Surprisingly accurate in the 9mm G17 platform.


Vielen dank,

Dasglockenspiel

TacticalGearJunkie
06-04-2011, 22:34
I load for 9x25 Dillon. I run 90 grain XTP's over 17 grains of Blue Dot, i get over 2100 fps. No signs of over pressure. ( Do Not copy this load unless your experienced and know what your doing.)

GlockAzona
07-26-2011, 02:20
Been using BD for about 30 years to drive 158 gr. bullets of various designs. For the past few years I've used 12 gr. as my exclusive rifle load.

Great performance & I see no reason to quit using it in my .357 rifle reloads.

15GLOCKGUY
08-02-2011, 22:52
Blue Dot is my exclusive powder of choice for 10MM, 357 SIG and .40 S&W. Best accuracy and performance is achieved with it in these calibers. I have yet to have a split .40 S&W case or guppy belly bulge with a modest yet factory like 7.1 grains over a 180 FMJ grain (flat nose). I'll keep using it for what I use it for. .40 S&W is a tricky caliber to reload. I don't have any problems with Blue Dot in it.

Ferdinandd
08-20-2011, 17:19
I've been on GT for a few years and this is the first time I looked at the reloading forum, and this thread is interesting to me. I loaded up some 110gr JHP's over BD and have had signs of excessive pressure in my GP100 - like very difficult extraction and flattened primers. They seem OK in my Contender OTT .357 Mag barrel though.

I shot max loads of BD under 158 JSP's when my GP100 was the only thing that I had to shoot silhouettes with. These seemed fine.

dougader
08-20-2011, 22:08
I'd be interested to know what your load was.

I've been using Hercules Blue Dot since about 1986 or 1988, and used the Speer 11 manual for data. Using standard primers, my usual loads were:

125 gr jhp/14.5 grains Blue Dot;

140 gr jhp/13.5 grains BD;

158 gr jhp/12.5 gr BD; and

168 gr SWC/10.0 gr BD.

The only time I noticed flattened primers and sticky case extraction was when I absent-mindedly used magnum primers instead of standard.

2Dogs
05-27-2012, 19:40
Have been shooting 125 gr jhp in 357 w/12.5 gr BD for years with no problem.

Tailhunter
07-13-2012, 12:19
Love me some Blue Dot.

dbarry
07-13-2012, 16:44
Me likey (love) blue dot. Never a problem w/ it. Good stuff.

PrecisionRifleman
10-01-2012, 19:28
BlueDot is one of my favorite powders. Gives me excellent accuracy and velocity in my 10mm/40.

billy396
10-18-2012, 09:40
I have 5# of 1992 stock BD. I have been looking for a load so I can Burn some of it up.
I Love the 125's in the .357 with a Heap of H110 to Burn.
I have Used BD in the .41 as well but I never found a load I liked.
Once again...I found myself reaching for H110.

'Nitro

I've used Blue Dot and H110 for years and I love both of them. I used Blue Dot years ago when working up some very stout 110 grain 357 loads. I never had any real problems, other than some slightly flattened primers. I did get some very high velocity, wicked accurate rounds though. Even though I've never had any problem, I'll never use BD for 125 Gr. 357, due to this warning... even though it doesn't make any sense to me, I won't try to second guess the factory that made the powder.

Courageouslion
01-07-2013, 19:35
I believe that Alliant did this for one reason. Liabilty. You see, in the Speer Number 11 Reloading manual there is a 125 grain .357 magnum load listed as 16.3 grains of Blue Dot, 1602 FPS. Yes, you read that right! Here is my take, and BTW, the reason I have a #11 manual is because I have been loading for 30 years. I have a 4" Magna-Ported Colt Python that I actually worked up to the maximum load that they had in this manual. I paid $250 for it brand new. And I have about 400+ rounds dated 1989 on the tags that are loaded with 125 grain Remington JHP bullets. I've fired about 100 of them over the years. The other day I ran six by my chrony and here is what I got: Colt Python 4" 357 Magnum 125 Grain Remington JHP WW primer Blue Dot 16.3 max load Six shot string: 1544 1534 1570 1564 1572 1570 Average 1559 Deviation 38 FPS and there are very little if any actual overpressure signs. They eject fine, with just my thumb pressure and have a slight bulge at the base. The primers are a bit flattened out, but not more than I've seen factory ammo flattened out. Here is what I suspect. I believe that the investment case stainless steel cylinders on the Model 66 S&W revolvers may have been a problem. Since the walls are a bit thin for a .357 and since they are cast, I would be willing to make a good guess that some folks had a problem with that load that owned those S&W revolvers. I do not believe that a cast Model 28 or the forged Model 27 would be an issue, and I do not believe that the Colt Python would be an issue. However, any thin walled cylinder that was being used for .357 might have found it a bit HOT. I mean do you see my average velocity at 10 feet from the muzzle from a FOUR INCH revolver? And it was a very controllable round because of the light bullet. And did you notice that Alliant (used to be Hercules) is stating this for ONLY the 125 grain bullet. THEY WANT YOU TO AVOID USING THAT BULLET WITH THEIR POWDER because you MIGHT come across that data. As for the 41 magnum being totally removed from the equation? Makes no sense UNLESS Speer or someone else did a whole series of bullets with high Blue Dot loads and folks were having issues with their 41 mags. I don't know. I've never owned a .41 so I couldn't tell you because I've never loaded for it. As it stands, I suspect from the HUMONGOUS flash that accompanies the 16.3 grain load that a good bit of the powder is burning outside of the barrel of my Python. Yet it is EXTREMELY accurate. I work my loads up to the maximum for a particular pistol or revolver and have found that in many cases the older Speer books maximum is actually a maximum. The newer books are not. You can't tell me that 7.8 grains of SR 7625 behind a Remington 185 grain JHP in a .45 is a maximum load. It kicks like a .22 and has absolutely no, zilch, nada signs of pressure at all. I never even checked the speed on that load because it was so anemic. HOWEVER, by going up 2 tenths of a grain, at a time, I was able to get just under 1000 FPS average out of 8.5 grains! And it is quite accurate. I had 10 pounds of the powder lying around and a couple thousand brass and bullets and it didn't make sense to use another powder if I could make a load that would work. My only major gripe was that in an 8 shot string I had one 832 FPS load and a 1004 FPS load which made the spread 172 FPS! I was shooting at 50 feet and still kept the group in a 3" circle. The 8.5 grain load shows absolutely ZERO signs of pressure build up. The first thing everyone would see is the totally flattened primers and if you have a ported and polished .45 you will see the brass bulging into the ramp like they do on those old Mac 10 semi auto pistols with just normal loads.

MrGlock21
01-07-2013, 21:01
I've used BD in 10mm and 454 with ok results. But I prefer AA#9

Courageouslion
01-07-2013, 21:52
Is AA#9 a ball powder? I think the flake powders don't measure as accurately in the Dillion powder measures.

SDGlock23
01-08-2013, 08:09
I've struggled to find a good place for Blue Dot, as it seemed that many loads just weren't very consistent. However I do think that in the warmer charges it gets better, maybe compressing it some helps, I don't know. I do know that 8.5gr of it will throw a 200gr JHP from a 6" .40 S&W at almost 1,200 fps with pretty good consistency.

Courageouslion
01-08-2013, 09:27
I think the major issue with it is good measuring. I've measured 10 in a row and seen what was thought to be set at 12 grains do 11.7-12.3
231 has always been so close you couldn't tell it apart from one round to the next. If you look at the powder you can see why one would have a variation and the other wouldn't.

SCmasterblaster
02-06-2013, 17:22
I have been using BD off and on since 1978. Great propellant!

Courageouslion
02-06-2013, 20:16
I just hate the way it meters.