200 Gr XTP? [Archive] - Glock Talk

PDA

View Full Version : 200 Gr XTP?


SinCityGlocker
01-10-2011, 17:20
I am developing a load for this bullet using Blue Dot. Lyman 48 says the max load is 9.6 and my brand new Hornady book says 9.4. I have loaded a series of these from 8.0 to 9.4 that I plan on testing Saturday morning. Assuming I show no signs of overpressure on my loads up to 9.4, do you think it is safe to push it to 9.6? I would really like to get this load to about 1175 fps out of a stock G20 and I think I will need to be at 9.6 to get there.

lunker
01-11-2011, 05:39
Be sure to use non-magnum large pistol primers. Blue Dot generates too much pressure with Magnum primers.

_The_Shadow
01-11-2011, 20:52
You will be wise to work very slowly and cautiously in very small incraments, taking careful observations, measuments inspecting each and every piece of brass during your test. Good luck and be very safe!

I have used Blue Dot to drive the Hornady 200 XTP's to 1175-1200fps from my S&W 1006 but I must advise caution! This was worked up 0.1 grain at a time to get where I am and I concider this a MAXIMIUM load for my weapons! This load original was printed by Speer for use with their Speer 200 gr FMJ seated to 1.250"(which is shorter than the Hornady 200 gr XTP) and tested in the Colt Delta Elite 5.00" barrel and made 1170 fps...

I loaded with older Blue Dot as from HERCULES...10.5 grains hand weighed and verified on 2 different scales(one balance beam the other electronic) that agree with each other.

Here is the data: Hot Louisiana day! 99 deg. 20' above sealevel
S&W 1006 5.00" barrel, Wolff 22lb recoil spring
10.5 grains Blue Dot(HERCULES in cardboard canister)
C.O.A.L. 1.260" seated
Primer CCI 300
Velocity 1175-1200fps
Primers started to flatten some

These are slower from my Glock 29 with the 3.78" barrel...

Again this is older Blue Dot from HERCULES! I have yet to open my new ALLIANT plastic jug to test with.

Kegs
01-12-2011, 08:37
I've gotten 1260 fps average with the 200xtp out of an "almost" G-20 length barrel, but not with blue dot.

I will be attempting as high or higher velocities with a .40S&W soon.

Definitely use regular large pistol primers as suggested above - and not magnum. Blue dot is a somewhat unforgiving powder.

MakeMineA10mm
01-12-2011, 09:49
<-- is not a fan of Blue Dot either...

If you want maximum performance with a 200gr XTP, it's hard to beat AA#9. 800x, N350, possibly 3N38 can also get you there, but they have their quirks too. AA#9 is the easiest, IMO.

NO powder, when persuing these types of top-end loads is without risk. Be sure to follow all the rules and go slow. In case you haven't already, be sure to read this (it's not JUST a CYA / Lawyer-talk thing):

http://glocktalk.com/forums/showthread.php?t=179485

JTknives
01-15-2011, 20:03
I have pushed 200gr XTP's to over 1400fps using 800x and actually hit 1500fps in one load. I stopped as i was getting flatter primers then i am comfortable with. i am using a g20 with a lonewolf barrel that's 5.6". Im not going to list load data as you need to work up to what you need/want. but one little tip, dont use mag primers at all. i bought into the whole you got to use mag primers and then i tryied cci300 primers and my groups shrunk by half what thy where before. Also i notice primer problems when running mag primers, thy start to flatten at lower velocity's then when using non mag primers.