Originally Posted By: Three 44s

In mostly bolt gun shooting, cases are neck sized (Lee Collet die) and they grow rather slowly. It is a long time before I have to trim again!

like was mentioned, new primers will fall in and out before the case needs trimmed.

that is throwing the books out and knowing how long the case can actually be before it needs trimmed. i guess if you dont know that, you probably should trim. lol
skeptical is what i am when told there is a dead coyote in certain far off pictures.