I shoot CCI Blazer LRN from the bulk packs all day long in my M1600 and have never had any malfunctions at all. American Eagle seemed to be inconsistent in the loads, as well as accuracy. I don't shoot the Thunderbolt or the cheap Federal from Walmart through it, it will cycle ALMOST... the bolt comes back and it will chamber the next round, but evidently it doesn't quite come back far enough to cock the firing pin, but these are the only two that I've experienced it in, but once I found that it ate the Blazer, that's all I've been stocking up on, luckily I have a couple of sources close to me that regularly have it on sale for $13.99 a brick of 500.
I am really liking this rifle, I have almost 600 rounds through it with no problems at all, it's accurate and light and perfect for tree rat season here.
