1911Forum banner

Thoughts on 10mm Power Pistol load

8.8K views 10 replies 7 participants last post by  david.gabbard11  
#1 ·
I have a Rock River Armory Tactical II in 10mm. First 10mm, 2nd 1911 but I’ve been reloading for 43 years. I bought some Speer 165gr Gold Dots to load for my carry load. Alliant shows max load of 10 grains of PownerPistol with this bullet and velocity of 1314 FPS. Lyman manual shows 8.7 , 1265fps.

I decided to trust the Alliant data... I loaded 20 rounds with 9.5grs of Power Pistol and chrony’ed them today and got an average velocity of 1355, high of 1406 low of 1311. That was from 13 shots fired through the crony. No signs of pressure, no more perceived recoil than some other reloads and factory loads I was shooting. Just really interesting to see a higher velocity with .5 grains less powder than listed loads. It was about 40 degrees (at most) while shooting.

Just curious if these are tested loads or “calculated” from other known data. I have no intention of moving up anymore and will finish the box with this load. I think I’ll buy the other box that was on the shelf because my other carry gun is a Springfield Armory XD subcompact in 40s&W and I’ll load this bullet for that also.

I did an expansion test with one of the rounds. Filled a 2 foot tall kitchen garbage can with pond water and fired into it from the deck above. This is a bonded bullet and I was curious... Beautiful mushroom, retained weight of 163 grains! Hydrostatic shock split the garbage can from top to 3 inches from the bottom. No hole in the bottom. This is a bullet/round/gun I will have confidence in protecting my family and me!

Bryan
 
Discussion starter · #5 ·
Sounds like a fine round for 2 legged varmints, and most 4 legged ones.
I carry the 155gr GDHP loaded to 1400ish from XDM 10 and G20.
Basically equalling a 357 mag in power but in a 15+1 platform.
I'm using AA #9, find it to give velocities I want with more manageable recoil.
Also had excellent results with Nosler 150gr jhp and Silhouette.
Will be testing Silhouette with 165gr Zero jhp.
Agreed! I’m feeling much more comfortable with the gun and the ammunition after that test! I’m thinking it would be a good whitetail deer load too...

Bryan
 
Discussion starter · #6 ·
Power Pistol is the only powder I've used in 10mm that exceeds load data velocities in every bullet weight I've tested, from 155 to 200 grain. The other anomaly I've noted with PP is that my most accurate loads always seem to be around .5gn under book max. The data I've used has been from Alliant, Speer and Hornady.
Interesting that you are seeing the same thing I am... Haven’t played around with loads for accuracy yet but I like what I’m seeing so far. Just got a sig Sauer Romeo zero mounted last weekend and am quickly liking the red dot site (I’m 55 so eyes aren’t as sharp). Ringing an 8 inch steel plate at 54 yards EVERY SHOT (cast & factory loads) was a lot of fun! (Off a bench of course, I’m not that good of a shot... :) )

I bought one pound about 10 years ago for a load in my wife’s 38 special. Never used it for anything since Now that I’m loading for 40s&w and 10mm it seems like a perfect powder for both of them and I bought 2 more pounds. That was a couple of months ago, I know I wont find it now... Also, it’s the best metering powder I’ve ever used!

Bryan