I recently purchased two 30 round Brownell magazines and immediately had a jamming problem with both of them.  While firing the fully loaded magazine a round would hang up on the leading edge of the magazine body (closest to the firing chamber).  This happened 3 times in one magazine and twice in the other.  It appeared that the neck of the brass case hung up rather than loading up the ramp and into the chamber.  As a note, I was firing new Remington .55 ammo I purchased from Wally Mart.

I replaced the springs with Wolff brand springs and the problem continued.  I finally cut the edge of the magazine body down 1/8th of an inch with a Dremel, dressing and smoothing the area.  Both magazines work flawlessly now.

Has anyone else encountered the same problem?

Thanks

Jerry

Did you try sending them to Brownell's for replacement?

No, since both of them were malfunctioning, I didn't bother.

I had the same problem with one of their replacement bodies. I just smoothed the sharp edge inside
the front end with a stone. Now the rounds glide over it instead of dragging it.