How do the Ninjas pattern in Mossberg 500 .410?
Only way to tell is on the pattern board, but the consensus seems to be that they are among the very best available (when available!).
IMO it’s especially important to pattern the .410 because not only do patterns vary, but also POI, and the smaller patterns make that more of a potential issue, and why I run a sight on the little gun whereas I may not on a larger bore. That red dot also allows me to shoot slugs accurately. I was a bit reluctant to fire a Brenneke through that tight tube, but no one died, and it landed close enough to the center to be useable in a pinch. Through the skeet tube, it groups those Brennekes like a rifle.
Two weeks from Monday our season opens. Guess I better get out there and tie one to a tree ahead of time!
