Why would a 300 grain Hornady xtp .452 in a short mmp sabot be much more accurate than 250 grain .452 in the same sabot? I would think the same diameter bullet would shoot with the same accuracy but they do not. Is there anything I can do to get the 250 grainers to shoot tighter groups? The barrel is Green Mountian 1/28 twist. I thought about a light paper patch around the bullet before I put it in the sabot to see if that might help some. Any ideas? I like that 250 grainer but I can't get it to shoot as well as I would like. The 300 shoots great but has a bit more recoil than I like for my 24" barrel and the trajectory is not as good as the 250.