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Posted By: guyotrd 375 H&H A-Frame 300 Load - 11/12/18
I was looking in the Lyman 49th edition and it lists the max load for IMR 4350 at 81 grains for a velocity of 2629 for a Swift A Frame 375 H&H.

It seemed quite high so I called IMR and they said the max load should be 76.5 - does anyone have any suggestions - I am going to pull the bullets. Based on Lyman book I did the starting load at 77 - I am wondering whether that is even safe.

I am shooting a Winchester Model 70 that was made a few years ago.

The A frame is very accurate and I am trying to duplicate the Remington Factory Loads that I have had for a few years. Any help would be greatly appreciated.
Can't help with 4350. RL15 is my go to for the 375.
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