[Bearcatrp]

Anyone using power pistol with 180 gr bullets? Picked up my RIA a year and a half ago and only shot around 20 rounds. With reloading supplies hard to find, haven’t shot much in last 2 years. Finally went to the range today. Boy am I rusty. Now I usually run a little above max on most of my firearms but my hands were sore as hell from the grips that came with the pistol. I use Alliant reloading data for my 180 gr pills. Am using 9.7 grains of powder. Seems a bit hotter than it should. It really barks in an indoor range. When I chrono’d last year, was getting 1345 fps. To hot?

 

[Srgunner]

Ya think?
Sounds like you're living on the edge with that one. My opinion. YMMV

 

[USMM guy]

I have been using Power pistol to load 180 grain bullets for ten mil for a long time to good effect for hunting. But you are way over hot with that load. I would definitely back off on that. Get a Chrono and do some testing before they start calling you lefty.

 

[RickB]

If you usually load above max, refrain from posting your loads here.

 

[Jack-45ACP]

Short answer, YES TOO HOT! Personally I've never seen the need to load over the max on any of my reloads. Alliant is specifying a max of 9.3 gr. for a 180 gr. FMJ bullet. I would have started at 8.4 gr. and probably not gone over 9.0 gr. Also record your accuracy results. You may be surprised.
What are you trying to accomplish other than beating up both yourself and your pistol?

 

[Bearcatrp]

Thanks folks. Will back it off. When going above, allot depends on the firearms build. No way would I do this with a polymer frame.

 

[Rock185]

I have used Power Pistol in loading 10MM, .38 Super, etc. In my use, PP seemed to be slightly slower than Unique, but still a medium speed powder. I have used a chronograph for many years, and PP gave a lot of blast and flash for the velocities it produced. I soon discontinued it's use.

FWIW, I started loading 10MM as soon as dies became available. The only factory .400" jacketed bullet available at the time was the Remington 180 JSP intended for loading the 38-40. I tried all kinds of medium speed to slower powders over the years, but settled on using slower powders when loading to top velocities. For instance, AA-9 is much slower than PP, and gives top 10mm velocities with least pressure signs for me in semi-autos and revolvers. Due to the high charge weight of AA-9 necessary for top loads, it would be very obvious if a case were to be double charged, not charged, etc.

Anyway, enjoy your loading and shooting the 10, it's a fine cartridge IMHO.

 

[Jack-45ACP]

Yes, Power Pistol is known for its "flash and bang". This doesn't really bother me since my reloads are for range use only. BE-86 is supposed to be very similar to Power Pistol, but without the "flash and bang", or at least much less. But I have yet to find it on the shelves where I shop and I don't want to pay to have it shipped.
I like PP for the accuracy I've been able to achieve with jacketed and plated bullets.

 

[johnnyreloader]

10mm fan boy here, have loaded in excess of 10K rounds over last 5 years.
For 180gr and 200gr, I use Longshot.
Yes, it's loud.
Yes, it's accurate in all my 10mm pistols.
For lighter projectiles or 'soft' rounds, I like CFE Pistol and Ramshot Silhouette.
Carefully working up to over max charge is OK as long as your pistol is safe for it.
Have so called atomic rounds that are fine in Ruger SR1911 but wouldn't dare fire in G20 or G40 with factory barrel.
The 10mm is plenty powerful with standard loads, haven't had a need to go beyond max charge weights.
My atomic loads: I keep only 6-8 boxes of these, use them for hitting steel at 100yds.
Even then, a top end load is sufficient.

 

[Jack-45ACP]

My handguns are too expensive, especially these days, to risk them with reloads over max, unless I have a awfully good reason. So far I have not had a good reason.

 

[Buds10mm]

i just got my hands on some AA-7 for the 10mm carbine I recently put in the safe. Also going to use it in my 1911 loads. Wanted a slow powder for the carbine's 16" barrel length.Don't have any large pistol primer so i'm kinda on hold right now. Anybody seen any recently?

 

[Jack-45ACP]

i just got my hands on some AA-7 for the 10mm carbine I recently put in the safe. Also going to use it in my 1911 loads. Wanted a slow powder for the carbine's 16" barrel length.Don't have any large pistol primer so i'm kinda on hold right now. Anybody seen any recently?

Yes, I just came across a few thousand in a LGS but they were selling them for $10.95/100 (by the tray)!! But I'm in PA, which doesn't help you. I have a couple of thousand on the shelf and I'm trying to stretch them out until availability goes up and prices come down.
BTW Accurate #7 was the very first powder I used to reload 9MM. It a little slower burning than Power Pistol and should be a decent choice for 10MM.

 

[Reinz]

I really like Power Pistol for 10 mm.

I settled on 7.9 gr for 180 powder coated bullets.

It‘s not the hottest thing out there, but you can definitely feel it.

They run 1150- 1180 fps out of my Sig and little less out of my XD 4.25.

 

[Jack-45ACP]

To be honest, after 30 years of reloading and trying many different powders, I've settled on Power Pistol for jacketed/plated bullets and Bullseye for lead/coated bullets. As long as I can find them I'm happy.
I was tempted to try BE-86, because they advertise it as Power Pistol without all the "flash and bang". But I'm not been able to find it on the shelves and I kinda' like the "flash and bang".
I've tried PP for reloading 357 Mag but not been happy with the results. I think I have to use something slower burning, like 2400, to get the best results for my 357.
I reload mostly 9MM and 45ACP. I have my favorite loads and reload them by the thousands.

 

[Buds10mm]

Yes, I just came across a few thousand in a LGS but they were selling them for $10.95/100 (by the tray)!! But I'm in PA, which doesn't help you. I have a couple of thousand on the shelf and I'm trying to stretch them out until availability goes up and prices come down.
BTW Accurate #7 was the very first powder I used to reload 9MM. It a little slower burning than Power Pistol and should be a decent choice for 10MM.

I would proably pay the price just to secure a stock pile. Thats all I'm lacking to be able to self sustain for a while should everything go to shiit again, and it will.

 

[Jack-45ACP]

I reload a lot of 9MM and 40S&W. When the shortages started I carefully worked up loads using small rifle primers and small pistol magnum primers as an alternative for small pistol primers. Now between SPP, SRP & SPMP I figure I have enough to last me until the 2024 elections. Of course, before all this BS I would burn through 100 - 200 rounds each week. Now I limit myself to 50 center-fires plus my 22. I've been able to score quite a few 22LR and have found a new passion with my old S&W 617. It's fun shooting steel plates at 50 yards double action and surprisingly easy after a couple of years of dedicated practice.
BTW, so far, I have resisted putting optics on any of my handguns. I know optics would make hitting the target a lot easier, but I think optics, and lights or lasers, ruins the aesthetics of the handgun.

 

[Benchmark]

I reload a lot of 9MM and 40S&W. When the shortages started I carefully worked up loads using small rifle primers and small pistol magnum primers as an alternative for small pistol primers. Now between SPP, SRP & SPMP I figure I have enough to last me until the 2024 elections. Of course, before all this BS I would burn through 100 - 200 rounds each week. Now I limit myself to 50 center-fires plus my 22. I've been able to score quite a few 22LR and have found a new passion with my old S&W 617. It's fun shooting steel plates at 50 yards double action and surprisingly easy after a couple of years of dedicated practice.
BTW, so far, I have resisted putting optics on any of my handguns. I know optics would make hitting the target a lot easier, but I think optics, and lights or lasers, ruins the aesthetics of the handgun.

Are there any concerns/danger using magnum small pistol primers in place of the standard ones? Do you need to reduce the amount of powder grains used?

 

[Jack-45ACP]

I found that SRP and SPMP are virtually identical. I did a pretty extensive evaluation using Power Pistol and 9MM and 40 S&W reloads and found no evidence of over-pressure.

I also considered whether there'd be a problem with the harder cups. I had no problems with either striker or hammer fired handguns. A range buddy did have a few failures-to-fire with his striker fired Glock. I had no problems with my G19 and G23.

According to Speer/CCI Technical Services - Both the CCI 550 Small Pistol Magnum and CCI 400 Small Rifle primers are identical in size. Both primers use the same cup metal and share the same cup thickness. Both primers use the same primer compound formula and same amount of primer compound. They can be used interchangeably.

Doing comparisons with a chronograph I found that SRP and SPMP, on the average yielded about 70 FPS more than SPP. So, to be safe, when I use SRP or SPMP I drop my load by 0.2 gr.

I've reloaded and fired thousands of 9MM and 40S&W cartridges with SRP and SPMP without a problem.




.

 

[Jack-45ACP]

BTW, check out this video by Speer/CCI where they tested SPP, SRP & SPMP. I thought it was well done.

 

[Reinz]

Glad to see some actual facts instead of the normal internet chatter with no backing.