If it will be used in a fairly short period of time......at least 2 rounds fired. Almost all of the small-bore (30 caliber and under) firearms we have, show a definite POI change from a clean bore to a fouled bore. It seems the smaller the bore, the more dramatic the POI shift. Our hunting rifles “do not” show a significant POI change......but they get “fouling rounds” as well! memtb

Last edited by memtb; 08/21/19.
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel

“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024