Was referring to .30-378wby, Ultra Mags, Lapua Mags as "Big Volume Ctgs"
The .375 H&H etc has lesser volume than the standard Weatherby ctgs and the 8mm Rem Mag ctgs. I am not a fan of the Express length magnums.
Dunno if the old standby 10gr Unq is usable in the H&H? Detonation is pretty likely in a lg capacity ctg, most of those only work with big charges of slow burning powder, iirc.
The .375 has a good bullet weight range, from 235 (maybe some lighter), on up to 350gr. I know some guys tout the .375 Whelen, but not much shoulder on that one. The .375/284 enables same powder charge and ballistics but has more shoulder area. That would be a good One Gun round for AK. I never tried any light loads in the .375 ruger I used to own. That is a pretty excellent round in all respects. Easy to improve any standard Belted Magnum to .375 Ruger; unless it's Express length.
The .375 Weatherby is the AI'd version of the H&H. Very good choice if you like an Express length ctg.
