My daughter gotme a 375Rum for xmas this year. Anyone have works on this cartrige as of yet. I have lots of 300rum brass on hand. A question on running these through the 375Rum die. Will I have any neck problems with necking up from 300Rum to 375Rum.

Thanks

Gary,
You'll have fewer ruined cases if you neck up in stages (.308-.338-.375).

George

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Shoot straight, shoot often, but by all means, use enough gun!