Give them a call BGG. They’re nice folks.
Oh, and if you’re patterning for the best performance try cleaning your barrel with some acetone or similar. Get all of the crap and oil out of it if you wanna see what’s best. I learned that trick while patterning Turkey loads.
For hunting it doesn’t need to be that clean but if you’re spending the money on a choke tube and the good buckshot it might help to differentiate what you’re seeing on the pattern board.
I have an 870 turkey gun I had the forcing cones reamed in.
665 Kicks choke. It shot turkey loads so tight at 25 I put a dot on to better aim it.
Used to go to x card shoots with it, and it took awhile to learn to NOT clean it.
It shoots much better with some plastic build up.
Unfortunately with high dollar/hard kicking ammo, it's not practical to
truly test for everything.
