.270W barrel length vs. velocity

[Guest MERRILL]

Can someone tell me how much velocity I would lose by choosing a 22 inch barrel rather than a 24 inch barrel in a .270Winchester? I roll my own using 58.7gr. H4831 under a 130gr. bullet.

[Guest Conrad]

Most gun people go with for every inch of barrel difference you can expect a 25 feet per second difference for standard cartridges such as the 270 win and about 50 feet per second for magnums. so in your case u may lose up to 50 feet per second on velocity with a 2 inch barrel difference.

[Guest MERRILL]

Thanks for the info. I was under the impression that it was going to be about 100fps/inch.

[Guest Conrad]

No problem glad to help