375 H&H from a 28" barrel

[Buster95]

How I can calculate the velocity of a 375 H&H from a 28" barrel? Any ballistic program for that?

 

[Sask_Hunter]

Nothing to calculate for that. There are to many variables in it(chamber and bore demensions).

22-24" is perfect for a 375 not sure why you would want a 28" on a mild mannered 375 holland.

 

[cam1936]

.375 H&H is not a overbore cartridge and really does not gain much from a barrel over 24". Look at loding manuals and see the gain from 24 to 26.

 

[c-fbmi]

Buy a chronograph !!!!

 

[Boomer]

The .375 H&H is very tolerant to changes in barrel length. It suffers little when shot in a short 20" tube and gains little when fired in a long one. You might see a change of 50 fps with a 300 gr bullet when the barrel length is altered one way or the other from the usual 24" barrel, which has no practical impact on the usefulness of the cartridge.

 

[JRodko]

I don't think any calculation will really tell you until you get it over a chronograph.