30-375 or 300win on steroids. You decide

Got this rifle build last year and never posted pics of it yet.

Its a trued rem 700 with mcmillan a3 woodland transition, ks arms barrel and bottom metal for hs mags, mbm muzzle brake.

Ive used 375 ruger brass for it and it was horrible. After 1 firing i could push the primers in by hand and this was on light fireform loads. When i found some gunwerks brass up here i jumped on it. The belt of a 300 win mag is .532, the same as 375 ruger. So i figure i could just blow out the casing. It has a nasty looking bottom end on them but works great, last forever, and extremely consistent. Ive shot this out almost a mile and its been very accurate loaded with 225 eldm and N570 powder running at 2925ish out of the 25" barrel.

Ill try and get some video of shooting when its not -25C here.

I read about someone doing that a while back looks funny but seams to work.
how is brass holding up? that is a lot of expansion above the belt. any cracking or weakening of the brass?
how is Gunwerks brass heard it was made by ADG
maybe someone will come out with 300 PRC besides Hornady or maybe the 300 PRC will be better than 375 brass

Ive shot 1 piece 10 times and sectioned it. Looked good and no indication of seperation. I believe some guys were using 8x68s brass and that was expanding more than this i think. Im not pushing this brass by any means so im hoping the remaining 99 goes more than 10 loads.

If someone else makes prc brass id buy that. I may even stock up on prc brass anyway once it's available here. Fireforming is a pain.

Very nice rifle!

Thanks very much. Hers my last group at 200yrd

And heres rock face from summer time at 995. Aim point was the black in the middle of the red circle. First shot cold bore dead center, second shot 1/2moa left.



This is by far the most accurate combo ive used. Love them 225s!!!

Got out today to test my new lot of n570. 3 shots at 745yds. 0deg C, 27.54hg, 5mph wind.