Hello--I am hoping some of you may have experience or information about loading for the .375 H&H with a short barrel. I bought a Remington 700 with the metal work done by Homer Strickland of Accuracy Arms. It has a 20" PacNor barrel, 1 in 12" twist, with Homer's muzzle brake on it, fitted in an HS Precision stock from a factory Remington. I like the way it feels in the hands, and I am looking forward to carrrying it through the alders on Kodiak in late April. My buddy has a bear permit over there, so my .375 will just be for backup or self defense.
From what I have seen, Homer built really accurate rifles, so I am looking forward to shooting this one. He moved down south a while ago, so I can't ask him what load data worked the best. He did exhaustive research in barrel shortening for the .375, cutting one off 1/2" at a time from 26", re-crowning, and then chronographing the results. It takes a real "gun guy" to spend that much time on a project like that. I recall that he felt that the 20" barrel was the best compromise between ballistic performance and carryability.
I have loaded for the .375, but for a rifle with a 24" barrel. I am looking for ideas for the best powder/bullet weight combination for optimizing performance in the 20" barrel. My other .375 likes Reloder 15 the best. I have never tried Reloder 17 in anything, and it looks like it might be a good application, along with H4895 or IMR4064. I will be trying 270, 285, and 300 grain bullets from Hornady, Barnes, and Sierra.
Anyway, thanks in advance for any advice you might have on this fun project!