i have a 338 edge with a 32in 1in9 twist barrel i would like to shoot the 300gr mk but the 250 acu bonds that i load now are seated deaply into the case even when they are tuching the lands . if i load the 300 to just tuch the lands they take up alot of case vol . My gun is single feed so col dont mater . i talked to a smith about cutting it deaper he siad make a dummy round and he could make a perfect fit . would i gane anything by seating the bullet out and having more case vol . the throught is perfect now for the 200&225sst but i got the long barrel with the fast twist to take advantige of the extra case and the 300gr pills.