While chronoing my new loads the other day, I brought my 4” 320 to see how they did in that vs a 5.25” barrel. I basically figured out that I cannot make PF (1087fps) with a 4” barrel without going at or near max load. This would be for CCP* division in IDPA, so I would need to make PF.
Examples:
Win 4.0 244, with 115 LRN. Hodgdon says 1092, I got 980. At 4.3 they say 1150, I got 1058. The max load is 4.5
4.9 BE-86, with 115LRN Hornady says 1067, I got 1011. At 5.2, they say 1087, I got 1035. The max is 5.5
Same thing happened with FMJ 115
Bullsyse, I get 1130fps out of a 5.25”, with 4.3, the max is 4.5
However, with a 147, I was able to get 128PF out of the 4” using 4.2 of BE-86, the max is 4.7.
Is this just normal? Should I just get 147s if I want to shoot CCP and call it a day?
Concealed Carry Division, not Chinese Communist Party. Although I would shoot both.
Examples:
Win 4.0 244, with 115 LRN. Hodgdon says 1092, I got 980. At 4.3 they say 1150, I got 1058. The max load is 4.5
4.9 BE-86, with 115LRN Hornady says 1067, I got 1011. At 5.2, they say 1087, I got 1035. The max is 5.5
Same thing happened with FMJ 115
Bullsyse, I get 1130fps out of a 5.25”, with 4.3, the max is 4.5
However, with a 147, I was able to get 128PF out of the 4” using 4.2 of BE-86, the max is 4.7.
Is this just normal? Should I just get 147s if I want to shoot CCP and call it a day?
Concealed Carry Division, not Chinese Communist Party. Although I would shoot both.