6 PRC reloading

[406Backwoods]

26" though?

Dont shoot ELDs with it? DTACs might hold up to the revs fine?

I’ve considered trying the DTAC. I just don’t want to have to run a mono in it. I know the rpm’s will be high but a 7.5 twist with a 3,400 fps velocity is only at 1.59 SG. The 7 twist puts it at 1.82

 

[mlevimadden]

I’ve considered trying the DTAC. I just don’t want to have to run a mono in it. I know the rpm’s will be high but a 7.5 twist with a 3,400 fps velocity is only at 1.59 SG. The 7 twist puts it at 1.82

What is your concern with having a 1.59 gyro in the 7.5 twist? Both Hornady and Berger specify you’re getting fully optimized BC at 1.5 and going with a faster twist is just getting you a lower muzzle velocity at the same pressure, increasing dispersion, and increasing your chances of issues with bullet jacket separation.

 

[2buffalo]

26" though?

Dont shoot ELDs with it? DTACs might hold up to the revs fine?

20"

 

[406Backwoods]

What is your concern with having a 1.59 gyro in the 7.5 twist? Both Hornady and Berger specify you’re getting fully optimized BC at 1.5 and going with a faster twist is just getting you a lower muzzle velocity at the same pressure, increasing dispersion, and increasing your chances of issues with bullet jacket separation.

I already have a 7 twist barrel that I’m wanting to get rechambered. Also, 1.5 is the minimum for optimized bc. 1.49 is still considered “marginal”. More is gooder, right?