I'm looking for a .375 H&H load -300gr swift a frame using IMR 4350 (because I have 3lbs of it)
I got a fast glimpse at a Swift manual & it stated 71.1 to 75.6 grains. My former load was 75.2 of IMR 4350 & 300 gr Nosler Partitions. I've got 3 touching at 100yds several times. I also use Fed 215 primers. My rifle is a Interarms- Whitworth. My sons friend is a guide & has got 96 brown bears for clients & has seen many partitions fall completely apart. My son is also a guide & uses IMR7828 with 400 gr Barnes in his .416WM. If I had to I guess I could borrow his powder when he's not looking. Any help would be appreciated. I hunt the same places the the brown bears do. Thank you Dave

Swift Manual 300 gr A Frame

IMR 4350 71.1 gr 2402 FPS
IMR 4350 76.5 gr 2604 FPS

As always, start low and work up carefully.

I recently worked up loads for an H-S Precision rifle chambered in 375 H&H. It shot much better groups with the 300 grain Swift than it did with either the 250 grain Sierra or the 300 grain Nosler.

This is the second 375 H&H that has shot best with the 300 grain Swift.

I settled on a load consisting of a Remington case, a Fed 215M primer, 77 grains of H 4350, and the 300 grain Swift A-Frame loaded to an OAl of 3.60 inches.

The pressures seem mild, the velocity is about 2550 fps and the groups are great, some down to half an inch.

Dave: Take a look at the attached picture. The load is 76gr of H-414, Winchestrer brass and Fed 215 primers. Velocity out of TWO Model 70s is right at 2560 fps.It's taken over 15 species of african game by me, including a buffalo by a friend of mine this part June AND a kudu at a masured 352 tards. Crimped using a Lee factory crimp die. jorge