I just made my first batch of 10mm reloads. Glock 20sf. I am using Montana Gold 180gr FMJ w/VV 350 powder. I started at the 5.2grains. I worked my way up from 5.2, 5.4, 5.6, 5.8, and 6.0. I shot 10 rounds of each increment. I had to manual eject the brass until I got to 6.0 grains and a couple stove piped but only 1-2 actually ejected the brass. Is my OAL the cause or just not enough power? I reload 40 and .223 and never had a problem. I always start with the minimum listed load and work my way up. This is the first time I've had the brass not eject. A few times loading 40 I had the brass just barely eject on the lightest loads. So that has me think that is the problem? Any ideas?