Re: 230 gr berger in a 30-378 with Retumbo
I tried this combo in my stock accumark 30-378 and found that my max load was 105.0 gr of Retumbo with fed 215M primers...I would start well below and work up cause i have blown a few $3 cases along the way! I forget the velocity but it was well over 3k fps but I was not happy with the accuracy from my rifle, the best I could do was slightly over 1MOA.... I love the 230OTM in my 300Win mag and get sub MOA groups but I had it throated for them when I re-baralled the rifle.
Good luck, they will be a wind busting combination if they shoot good from your rifle, please post your results........