atmoshpere
Beginner
- Jun 8, 2011
- 196
- 0
How much does your COL have an effect on your chamber pressure and load velocity assuming your bullet position relative to the lands remains the same?
As I understand it, if you could have your rifle throated to allow you to seat your bullets out as far as possible (assuming your mag allows a long COL) you would be maximizing your velocity potential for a given case.
Hypothetically, if you had two rifles chambered for the same round but one was throated for SAAMI COL and the other throated to allow say, a .20" longer COL, is there really that much difference in velocity potential? I'm assuming that the reloader is compensating for the change in case volume and adjusting his/her powder charge to maintain similar pressures with the two different rifles.
I have never loaded for more than one rifle in the same cartridge before, and was wondering if those of you who may have, have noticed velocity differences given the same barrel length, that may have been due to longer COL's in one rifle over another.
Thanks,
atm
As I understand it, if you could have your rifle throated to allow you to seat your bullets out as far as possible (assuming your mag allows a long COL) you would be maximizing your velocity potential for a given case.
Hypothetically, if you had two rifles chambered for the same round but one was throated for SAAMI COL and the other throated to allow say, a .20" longer COL, is there really that much difference in velocity potential? I'm assuming that the reloader is compensating for the change in case volume and adjusting his/her powder charge to maintain similar pressures with the two different rifles.
I have never loaded for more than one rifle in the same cartridge before, and was wondering if those of you who may have, have noticed velocity differences given the same barrel length, that may have been due to longer COL's in one rifle over another.
Thanks,
atm