CCI blazer feed problems

[reichebrown]

I have a S&W sigma 9m that is picky in what goes through it apparently... I have had no problems with remmington UMC but had lots of problems with winchester white box. I just bought some cci blazer today and was having isues with it jamming on the last round of the mag. Not sure if it the mag, the gun, or the ammo. Any thoughts?

[JLBIII]

We use CCI Blazer Brass as our range ammo. It's pretty accurate in most guns and we don't see many problems with it. If it's only jamming on the last round, I would make sure the gun and mag are clean and lubed and then try another mag.

JB

[Mity2]

if its just last round gets hang up, I would suspect either mag spring or follower, not the ammo.
Fill the mag with 1 UMC(which you stated you have no issue), and rest with WWB and see if probrem remain