I understand that Winchester has the same barrel contour for all their "big" safari type guns. With the .375 H&H, there is a lot more steel left in the barrel than with a .485 Win Mag. Thus, the .375's seem to be barrel heavy at 24". With the sight holes drilled, most smiths don't want to turn down such a barrel, siting tool chatter, etc. from the holes. And, turning a barrel down is a lot of work unless one has expensive machinery designed for that task. Cutting the barrel to 21" will miss the screw holes and can help a lot, but those guns are still pretty beefy. To me, Winchester barrels are accurate and I hate to scrap one. But, a custom build may be the only way to achieve "perfection".

DF