question about CBOB

[CaffeinFeign]

took my DW cbob to the range for the second time today, i had some issues the first time at the range, so I have been working on solving the problem. My first go around I had some FTF problems with HP's, thought maybe it was the length of the round that was the problem. But today, I ran the firearm with a few rounds of everything I had in the house..NO Issues at all? The DW ate everything, from FMJ to JHP...as long as I only loaded 7 rounds in the mag. Thought maybe, the checkmate mags were the problem, tried every mag I could find in the house..(there were a few) and all of them seemed to do the same thing? Any thoughts? Anytime I load a full 8 in a mag...the mag may or may not take, if it does...I will be sure to have a FTF first round in. I have only owned 3 1911's so I am not really up on in's and out's of these firearms. I will say, even with only 7 rounds...this is the smoothest shooting firearm that I have owned or shot...