Ok folks, i have a g-21 with a kkm barrel in it. i recently loaded my first boolits, lee 452-228 round nose. i loaded em at 1.265 oal and now they tend to jam. they passed the plunk test so I'm not sure if i should seat deeper or what? if yall have any suggestions i would appeciate them. thanks. oh, la oad is 6.0 unique.