i loaded up and fired a few of montana bullets 265 grain bullets a week or so ago. They had been heat treated to around brn23 or 24. Pretty stout with the powder load i had in them, but no leading of issues at all. I am going to try them in a carbine, and also run through a chrony both in the carbine and revolver.
I was using AAno 9 as i remember.
i did load up those 300grainers you sent me with 296, but haven't fired them yet.
one of the interesting things to me, probably useless chatter to others, is the similarities in .375 winchester, 44magnum, 41magnum, and 45 colt and i should add 38.55 when you get looking at these bullet weight/velocity things in those calibers. They are not that far apart in the carbines.
i had a friend center punch a nice mule deer with a .358 lever browning using a 220grain bullet at about 2200fps. That is within the range of the .375winchester and just a couple hundred feet faster than the 40caliber pistol/rifle loads. It was pretty nasty on the exit hole it made on that deer.

Last edited by RoninPhx; 03/16/15.

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