I picked up a box of .338 250 OTM's and worked up a few loads last night at the bench. I'm waiting on decent weather to go test. I realize that 250's might be a bit big for the 338 winny, but I thought I'd give it a try. 338 OTM's Nosler Brass 2.490" IMR 4350 Fed GM215M I had to seat the bullets deeper than I wanted in order for a loaded round to clear the ejection port in the rifle. My first dummy round checking for COAL would not eject. The bolt would not come out of the rifle because of the ejector pin hitting the live round. Once I get time to shoot, I will post results. I haven't seen much info/data on the 338 winny with 250 OTM's, thought I'd give it a shot.