Coming up on around 2,000 plus rounds one shot feels like its low on powder and the bullet doesn't even hit the paper. I figured it was a weak round or squib that lost its jacket so I wait 20s then check the barrel, nothing stuck in the barrel. I rack another round and the barrel moves protruding about 1/8" past the slide. Something is not right, so I remove the round and upon further inspection realize I've got a crack straight across the top of my feed ramp. I was shooting WWB and have shot no more than 50rnds of +p and +p+ combined during its use. normally its Blazer Alum or WWB.