I'm working on a low pressure load for the 45acp because I'm bored. I want to see how slow I can get the Hoosier Bullets 230gr CLRN and still cycle reliably in my S&W Shield 45. The shield has no upgrades just stock.
I'll also be testing a Springfield XD Tactical 45 acp as well. I'm trying to get a friends Rock Island 1911 to test these -P loads on as well.
Starting grain was 6.0gr 800x then I dropped accordingly 5.6gr, 5.2gr, 4.6gr and my stopping point at 4.0gr of 800x. I'm using CCI 300 LPP.
COL: 1.230
The 4.0gr has worked reliably in my Shield.
10 shot Group
Avg FPS: 522
Max FPS: 528
Low FPS: 508
ES: 20
SD: 8
Avg PF: 120
Avg Energy Ft-Lbs: 139
Very soft shooting. Once I get the other 2 platforms tested I'll post those results and do some accuracy tests.
Edit:
My son came over with his Springfield XD Tactical 45acp. It was able to cycle reliably down to 4.6gr load. 4gr was too weak for the heavier recoil spring in his pistol. The 4.6gr load cycled great except the brass ejected on his hand every shot. So we decided we will load up a batch at 4.9gr and see how well it does. I think that will workout great for his pistol and my pistol was able to run with the 4.0gr loads so it will definitely run on 4.9gr.
I'll also be testing a Springfield XD Tactical 45 acp as well. I'm trying to get a friends Rock Island 1911 to test these -P loads on as well.
Starting grain was 6.0gr 800x then I dropped accordingly 5.6gr, 5.2gr, 4.6gr and my stopping point at 4.0gr of 800x. I'm using CCI 300 LPP.
COL: 1.230
The 4.0gr has worked reliably in my Shield.
10 shot Group
Avg FPS: 522
Max FPS: 528
Low FPS: 508
ES: 20
SD: 8
Avg PF: 120
Avg Energy Ft-Lbs: 139
Very soft shooting. Once I get the other 2 platforms tested I'll post those results and do some accuracy tests.
Edit:
My son came over with his Springfield XD Tactical 45acp. It was able to cycle reliably down to 4.6gr load. 4gr was too weak for the heavier recoil spring in his pistol. The 4.6gr load cycled great except the brass ejected on his hand every shot. So we decided we will load up a batch at 4.9gr and see how well it does. I think that will workout great for his pistol and my pistol was able to run with the 4.0gr loads so it will definitely run on 4.9gr.
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