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So I managed to get my hands on a couple pounds of power pistol and decided to work a load up. I have not gotten a chance to test for accuracy yet, but the chronograph results for working the load up were very promising.
mixed 9mm brass
Winchester small rifle primers
Berrys 124g plated round nose
seated to 1.150 (per my lee manul)
Power Pistol 6.0grn
5 shot results, G19, barrel 4.02in
average 1236fps
SD 12.09
ED 29f
threw brass about 10ft
Also tested, same components, 5 shots, just different charge weight
4.5grn avg 924fps, sd 25.79, es 59. cycled but dropped the casings at my feet
5.0grn avg 1050, sd 21.61, es 45, cycles well, threw bass about 3ft
5.5grn avg 1104fps, sd 9.29, es 23, cycles well, threw brass about 6ft
Note: I posted the warning at the top for the following reasons. the lee manual lists this load with a start of 6.0 and a max of 6.6g with the listed COL and a 125g jacketed bullet. I started below the listed start and was using a 124g plated vs the 125g jacketed listed. Also I am using small rifle primers as small pistol primers are not obtainable at this point. I personally would not go above 6.0g with this load, its on the spicy side as is. primers were flattened but not flowed and showed some minimal cratering, but this gun tends to crater even at starting loads.
Berry's states to keep their plated bullets under 1250fps, and the highest was 1257fps. I may back this down just a touch in the future, but I need to load a few and do a larger chronograph sample and accuracy testing first.
So I managed to get my hands on a couple pounds of power pistol and decided to work a load up. I have not gotten a chance to test for accuracy yet, but the chronograph results for working the load up were very promising.
mixed 9mm brass
Winchester small rifle primers
Berrys 124g plated round nose
seated to 1.150 (per my lee manul)
Power Pistol 6.0grn
5 shot results, G19, barrel 4.02in
average 1236fps
SD 12.09
ED 29f
threw brass about 10ft
Also tested, same components, 5 shots, just different charge weight
4.5grn avg 924fps, sd 25.79, es 59. cycled but dropped the casings at my feet
5.0grn avg 1050, sd 21.61, es 45, cycles well, threw bass about 3ft
5.5grn avg 1104fps, sd 9.29, es 23, cycles well, threw brass about 6ft
Note: I posted the warning at the top for the following reasons. the lee manual lists this load with a start of 6.0 and a max of 6.6g with the listed COL and a 125g jacketed bullet. I started below the listed start and was using a 124g plated vs the 125g jacketed listed. Also I am using small rifle primers as small pistol primers are not obtainable at this point. I personally would not go above 6.0g with this load, its on the spicy side as is. primers were flattened but not flowed and showed some minimal cratering, but this gun tends to crater even at starting loads.
Berry's states to keep their plated bullets under 1250fps, and the highest was 1257fps. I may back this down just a touch in the future, but I need to load a few and do a larger chronograph sample and accuracy testing first.
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