Got the adapter and made did a quick range trip to my basement, target was shot from 6yds, 25-06 Ultra, Burris FFII 3-9x40 set on 3x, aim point is the dot, first shot low right, second low left, last center, the last shot shows signs of keyholing. I was resting over a tripod, so it wasn't the steadiest I can shoot, but would be typical of an offhand shot I suppose, it would be good enough for close small game tho. This is with the ammo that was in Dad's pistol, steel cased stuff, when I get the ammo from Jack I'll shoot it again.
Thanks Larry, I'd be glad to send the adapter on to someone else if they want to try it in their rifle, if that's Ok with you.
Tim
EDIT: Decided to run a round over the chrono, 767fps, but I dunno what weight bullets these are, 50gr Blazer most likely.