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Old 12-02-2003, 20:31   #1
kestrou
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Vihta Vuori Powder Data

The following data is for Vihta Vuori N340, and was all chronyed at 60 degres through a stock Glock 20 (4.6" barrel) with a Pact Mark IV. Bullets are all 155gr West Coast JFP, with COL of 1.26", primers are Winchester Large Pistol.

Grains FPS FPE Power Factor
5.8 890.4 272.91 138.01
6.0 941.7 305.31 145.97
6.2 976.1 328.01 151.30
6.4 967.9 322.50 150.02
6.6 1011.6 352.31 156.80
6.8 1063.9 389.68 164.91
7.0 1096.3 413.72 169.92
7.2 1090.5 409.41 169.03
7.4 1116.7 429.30 173.09
7.6 1157.6 461.32 179.43
7.8 1184.9 483.32 183.66

VVN340 is a near perfect powder for 10mm loads below "nuclear" - meters very well and the cleanest burning powder I know of!

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Last edited by kestrou; 12-03-2003 at 07:26..
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Old 01-09-2004, 10:16   #2
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Been competing with Viht powders for years...

If you need any data with viht powders...email me and let me know. I've probably tried all of them by now. If you want clean, then try N320 (use hot .40 data). If you're trying to build a cannon...try N350, it has very similar characteristics to AA#7.no_minor@yahoo.com
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Old 12-13-2009, 19:33   #3
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Quote:
Originally Posted by TeamTupperware View Post
If you need any data with viht powders...email me and let me know. I've probably tried all of them by now. If you want clean, then try N320 (use hot .40 data). If you're trying to build a cannon...try N350, it has very similar characteristics to AA#7.no_minor@yahoo.com
im loading 3.7 of 310 200gswc 45s for ppc. do you know the difference between the 310 and 320? thanks
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Old 12-13-2009, 21:15   #4
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Why does Vhit not post the correct data with their N105? 9gr pushing a 200gr XTP only yielded about 1050 FPS. They show 1162 with only 8.6gr. Something is not right.
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Old 06-26-2010, 14:30   #5
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Quote:
Originally Posted by 7.62FMJ View Post
Why does Vhit not post the correct data with their N105? 9gr pushing a 200gr XTP only yielded about 1050 FPS. They show 1162 with only 8.6gr. Something is not right.
Maybe it's different barrel length, barrel type, primers ...
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Old 08-07-2010, 15:02   #6
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Here's my data for N105

- Glock 20 stock barrel -- EDIT: (previously I misstyped it and stated as "Glock 21")
- primers: CCI LP
- powder: VV N105
- bullets: Winchester JHP 180gr
- brass: Starline (new)
- COAL: 1.256
- temperature: 50 F (10 C)


load (grains) average (fps)
10,0..............1128
10,2..............1144
10,4..............1189
10,6..............1193
10,8..............1213
11,0..............1227

No signs of overpressure yet.
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Last edited by robert91922; 08-08-2010 at 03:26.. Reason: misstyped pistol model
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Old 02-14-2004, 09:41   #7
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Looking Good

I was going to ask a couple of questions, but you've answered most of them. A stock G20...yup, I think you're just about perfect using N340. I've played with N105 a little, and have yet to try it in either of the bottleneck cases. If you have room in your case with N340 and would like a little softer feeling recoil, you might try a pound of N350 (quite possibly the world's most FORGIVING powder)and go nuts. The beauty of N350 is that it will only burn what it can in the barrel, the rest is in the form of a flame ball coming out the front of the gun.<P>
Make sure you're increasing your spring rate in the G20...recoil is about to get ugly.<P>
If you're going for speed, I've always had good luck with AA#7. Once you get the pressures up, it burns clean. <P>
Double check me sometime, but I think that if you fill both a 9x25 and a 357sig to the top, the sig will hold .3gr more than the 9X25. I think it's due to the internal web thickness.<P>
Lemme know how this all works out for you.
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Old 01-23-2009, 12:31   #8
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N350

Quote:
Originally Posted by TeamTupperware View Post
I was going to ask a couple of questions, but you've answered most of them. A stock G20...yup, I think you're just about perfect using N340. I've played with N105 a little, and have yet to try it in either of the bottleneck cases. If you have room in your case with N340 and would like a little softer feeling recoil, you might try a pound of N350 (quite possibly the world's most FORGIVING powder)and go nuts. The beauty of N350 is that it will only burn what it can in the barrel, the rest is in the form of a flame ball coming out the front of the gun.<P>
Make sure you're increasing your spring rate in the G20...recoil is about to get ugly.<P>
If you're going for speed, I've always had good luck with AA#7. Once you get the pressures up, it burns clean. <P>
Double check me sometime, but I think that if you fill both a 9x25 and a 357sig to the top, the sig will hold .3gr more than the 9X25. I think it's due to the internal web thickness.<P>
Lemme know how this all works out for you.
Brant P. Foster
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I've got a few pounds of N350, CCI 300 (large pistol) primers, Starline 10mm brass and 180 grain Oregon Trail Laser Cast bullets. Any recommendations on powder charges? I'd like to work up to full 10mm loads. Thanks in advance!
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Old 01-23-2009, 13:02   #9
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10 mm

Hi Doc, I used Oregon Trail bullets and they smoke a lot when fired. The barrel was also dirty. I use Rainier 180 gr. FP, not RNFP. 11.0 gr of AA-7, 1.250 OAL, WLP. and a crimp of .421. This is a published load for 1200 fps. Semper Fi Doc!
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Old 01-23-2009, 13:56   #10
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Semper Fi!

Quote:
Originally Posted by f4tweet View Post
Hi Doc, I used Oregon Trail bullets and they smoke a lot when fired. The barrel was also dirty. I use Rainier 180 gr. FP, not RNFP. 11.0 gr of AA-7, 1.250 OAL, WLP. and a crimp of .421. This is a published load for 1200 fps. Semper Fi Doc!
Stationed at Quantico in '72... took care of many U.S. Marines coming back from 'nam - trauma/surgery. You guys are great!

I've got some Speer 180 gr. TMJ (value pkg) bullets too. In "The Complete Reloading Manual for the 10mm and .40S&W", powder burning rate chart, in order of burn rates, N350 is #32 and AA#7 is #34 (suggesting N350 is a little faster). Could I substitute AA#7 for N350? (I'm shooting a G20 with a Lone Wolf fully supported barrel.) I got the N350 for .40S&W reloads, but like shooting the 10mm more. Appreciate any advice/input. Semper Fi!
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Old 01-23-2009, 14:04   #11
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Vihta Vuori Powder Data

Hi Doc. I don't see why not. I would use 1.260 OAL, and start your loads at 9.6. I would check Lee's Second Edition to see if they list a comparable bullet combo with a jacketed bullet. You will use more powder with jacketed. If you have feeding problems, shorten to 1.250. Corpsman took good care of me at Chu Lai, Great Lakes, and the Naval Hospital at Beaufort. My son was born at Beaufort Naval Hospital.
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Old 02-26-2004, 12:11   #12
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I did a water weight measurement of 9X25 vs .357 Sig.
The 9X25 will hold 20% more water weight than the .357 Sig. (1.50 grams vs. 1.24 grams of H2O)
So, for the same size bullet, you can still get ~ 20% more powder (or more) in the 9X25 than the .357 Sig.


Does anybody have any 10mm (or 9X25) data (real world) on N-105? Is it too slow like AA#9 to develop Norma+ loads?
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Old 02-27-2004, 11:34   #13
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cool

thanks for the difinitive answer, i must have had it backwards. Approx. 20% more?...ouch! That'll leave a mark!
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Old 03-08-2004, 11:30   #14
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http://www.vihtavuori-lapua.com/reloading.asp

Doesn't it just make you sick that VV seems to have loaded 40 S&W to NEARLY the same (< 1% diff) velocities as 10mm!!!!
They list both with a 5.5" barrel (which is pretty unrealistic)
And the 200grain 40 S&W load comes in at 1118 where the 200 grain 10mm load is 1125!!!
This is pretty consistent for them with like-powder types and bullet weights...

No wonder 10mm isn't more respected....
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Old 03-12-2004, 22:40   #15
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As for the rather heavier bullets, 180gr and 195gr H&N bullets the best results happend with 3N37 and N105 in my G20. Actually, N105 was hot, awesome! Too bad, I cant recall the exact velocity.
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Old 03-20-2004, 22:42   #16
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Despite the anemic numbers published by VV, I ordered locally and received 1lb of 3n38 and 1lb of n105. Due to the currency exchange, (the store said...) I paid WAAAAY too much for this stuff.... $60 later (remember no haz mat fees for local purchases!?!?) and I am somewhat enlightened of both my wallet and my mind...
I am pretty impressed with both powders. Their measured density in grains/cc is nearly the same. 3n38 is 12.27, and N105 is 12.2. N105 is the first pistol powder I have seen that looks like an extruded rifle powder, and 3n38 is about the same color, but looks like n105 ground up into smaller pieces. I think n105 will dispense OK and 3n38 will dispense as good as anything. Both seemed low flash at all charges tested when shot in the daytime.

I have shot at least a box of DoubleTap ammo through my G29, and recorded the max head diameter of these rounds. The loads below produce similar head diameters or less in MY gun, and do not exceed the max head diameter I recorded with DoubleTap. I worked up both loads below starting at 10.0 grains.

Glock 29 Stock barrel
Rem 2 1/2 primers (be careful if you are using CCI 350s)
New Winchester Brass
COL 1.265
Remington 180 FMJ
5 shot strings
~ 80F
11.9 grains 3n38 Lo=1232 Hi=1245 ES=13 A=1235 SD=5
12.2 grains n105 Lo=1221 Hi=1236 ES=15 A=1228 SD=6
Phenomenal Standard Deviations! WOW!!!
3n38 is maxed at 11.9 in my gun, but n105 has a significant ways to go. It did not show anywhere near the DoubleTap head expansion.

In the IMR thread, McNett has published a 180XTP with 10.8 800X in a g29 @ 1265. 3n38 won't do it, but n105 has potential to match 800X. One more trip to the range should tell...
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Old 03-22-2004, 10:28   #17
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Thanks Spong!

I am particularly interested in the 3N38, but also the N105.

Why do you believe the 11.9g. of 3N38 is maxed out at 11.9?

When you refer to the "head" do you mean the very bottom of the case wall where the bulging occurs in a non-fully supported chamber?

Any signs of over-pressure with respect to the primer?

Good work, I'm looking forward to your next trip to the range!

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Old 03-22-2004, 11:27   #18
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Head expansion

This is what I am talking about!

Please read the glock faq before attempting to "Work-up" loads.
Stay Safe!
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Old 03-23-2004, 12:26   #19
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Here's a 3N38 thread from pistolsmith.com:

http://www.pistolsmith.com/viewtopic...=115304#115304
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Old 03-25-2004, 09:19   #20
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Sponge:

I was browsing my VV load manual last evening and I must say I am intigued by N105. I think you're on to something! Maybe this is McNett's mysterious powder that he puts in Double Tap?

It's really a shame that VV provides such crappy data. This holds true for not only the 10mm cartridge, but for the applications of their own powder as well. As an example, in the description of their product they describe 3N38 as a good choice for .38 super and 9mm with moderate bullet weights, and then they don't provide load data for a single .38 super load in the table. WTF? They only describe loads for 147g bullets in the 9mm table. WTF?

I think VV powder is good stuff, but the Finns sure aren't marketing it very well!!!!!!!!!!:( :( :(
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