Since it is a used gun I would check to see what it has for springs particularly the firing pin spring,trigger spring and RSA,actually I would just replace all with OEM and then go to the range.
I have not had feed problems with Federal 180 gr. FMJ in either Eagle or Champion through any of my 40"s even with it's flat blunt nose. SJ 40
Last edited by SJ 40; 10-04-2012 at 18:39..