I gotta agree with cw. I don't shoot a .375, but I do load for and shoot a Handi .38-55. My favorite load in that rifle is actually for a .375. It is a 213 gr. custom bonded bullet over 38.0 gr. RL7 for 2275 fps. That's out of an 18 inch Handi. I bang flopped my buck with it last year.
Not sure if these will help. I very rarely shoot jacketed out of my .375Winny. The 2 bullets I cast are a 240gr. LBT and a 270gr. Lyman. Same powder for both. 4227--24gr for the 240 and 22gr. for the 270. Both gas checked bullets. gypsyman
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