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barrel length VS velocity
Posted: Fri Sep 09, 2022 6:46 am
by SBR4590
I'm re-barreling a 45 90 with a RKS gain twist. It will probably finish at 30". My other LR 45-90's have 34" barrels. I'm wondering, how much velocity loss, if any, will the shorter barrel give?
Thanks.
Frank.
NYC.
Re: barrel length VS velocity
Posted: Fri Sep 09, 2022 7:35 am
by Randy Bohannon
You will not notice any difference per Kirk , I asked this very same question just a few weeks ago.
Re: barrel length VS velocity
Posted: Fri Sep 09, 2022 8:01 am
by SBR4590
Thanks.
Frank. NYC.
Re: barrel length VS velocity
Posted: Fri Sep 09, 2022 8:48 am
by ian45662
A friend of mine has a 16” 40. It shocked the hell out of me but it’s only 10FPS slower than his 28 or 30” 40. It looks funny as hell but it shoots really good.
Re: barrel length VS velocity
Posted: Fri Sep 09, 2022 12:25 pm
by MikeT
Does a gain twist affect MV?
Keep on hav'n fun!
MikeT