Help! Grendel Rifle not running

[sneaky one]

hey bobber, I am currently replacing half my hunting ammo for deer, moose, elk, oink, etc, w/ gmx ammo. It will hit harder than heavier wt. class of (cup,core- lead taste- units.) The only reason it seems , to put an adjustable block upon it--is to minimize the effort to retreive ones brass, if one 's butler isn't there to find it..