WildRose
Well-Known Member
I would still avoid the gain twist barrels, that's a tremendous amount of friction that is just not necessary.If I recall there's a very old thread here somewhere, Kirby actually did play with a .30-408 cheytac with 290 grain (I think) Uld-rbt bullets by wildcat bullets (don't think they're in business anymore).
That case capacity was simply too much to be useable, and the twist required combined with the velocity ripped those jackets apart before they left the barrel.
HOWEVER…there are options now that weren't then. Hbn treating things effectively makes powders that are too fast act a bit slower (you can load more in). Drive bands or hammer style pdr bands also have this effect. Monos don't rip apart from twist rates.
A gain twist might actually be worth looking into.
What about the enABLR case. Slightly less capacity than cheytac and a shorter fatter column, Peterson brass…
Yes you'll gain some velocity but I've see no evidence they improve accuracy in any caliber.