[DiN_BLiX]

I have found 24 grains of 4895 to be a minimum round. With 55's and 60's in my Mini's they are hit and miss locking the bolt back. The good thing is only .2 more of a grain seems to be the fix. I doubt the 1911 bushing at the receiver end is a real problem but you can take it out to elimiate a variable.

Also keep in mind 4895 does not meter as well as ball powder. You may be getting some loads lighter than others. I like AA2230 and 2460 in my Mini's. kwg

^^This