Oldbloke wrote:Perhaps we could come up with a "most accurate .22lr ammo" list?
It's a bit too subjective, OldBloke. What might be really accurate in one rifle may not be good in another, as you well know.
Too many variables to account for. It would be a tome, not a list.
Would be interesting if, for instance, all the BRNO Model 2 owners listed their 3 best rounds and see where the cross over was, if any, for accurate ammo.
One other tip from what others have said already. Although i don't have BRNO, on both my 22lr, once i found the best round (available and affordable, anyway, I could always test more!) i found that the group tightened with a little experimenting with the action screw torque settings. For some reason, both my old Sportco and my new T-bolt both like the front screw a little tighter than the rear. Somewhere around 25 inch pounds at the front and 20 at the back; give or take for each rifle.
Also you mentioned applying a pressure point bedding (plastic bit under the barrel). My Sporty also hated being floated. I experimented with the position of the pressure point and exactly how thick it was (how much pressure it was applying) by folding up business cards and moving them from the end of the fore-end back an inch each mag full to get it shooting as good as I can get it. I then used the business card to set the height and used some "bog" to make a permanent (but removable if needed) pressure point.
Might be going a bit far for you, but these are some things you can try if you are really excited by the idea of tinkering for accuracy.
Have fun and good luck.