I guess I lied.
I broke out the targets today, figuring I'd match up my notes to the holes and take some measurements...or I read about a program that figures group size for you from photos. When I looked at the targets a few moments ago, this is what I got:
The two best groups were Eley Target (aka Yellow Box)
and Wolf Match Target
, both of which are under $5.00 a box!
Rifle is my Silly Blue Ruger 10/22
And to keep steady my new Cowen Rest and Protektor bag
Both 10 shot(!) groups at 50 yards from a makeshift wooden bench, I don't know what the wind was, but it was gusty (as it always is at Waterman), which might account for the one flyer on the Wolf grouping. The other holes you see on the page were different brands I was trying out. Some more expensive then the two best, most were cheap Walmart stuff.
I was having extractor issues, so I'm going to back and redo the test to eliminate my clearing a jam and having to reset as a possible deviation, but I'm pretty sure the results will be the same.
I'm so very happy with this rifle I built!