I tried several different brands of sub sonic/target rounds recently. The most expensive I have tried was Wolf target - around $6 a box. I used to get them for $3. They are also the most accurate I've tried(I haven't tried Eley or anything that expensive). My 10/22 shoots Wolf into one ragged hole @ 50 yards. I just bought several different brands of sub sonics to try. I shot them though a stock Remington 504 and a 10/22 with a Green Mountain barrel, trigger job and Hogue overmolded stock. I tried sub sonics from Remington, Fiochi, Wolf, Aguila and the 60 grain Aguila sniper sub sonics. Both of the Aguila's didn't cycle the bolt well in the 10/22, but were plenty accurate with the exception of one 60 grainer that appeared to have tumbled (keyholed). The 60 grainer was very accurate out of the 504 bolt action. The 10/22 grouped well, with all the others that I tried through it. I wouldn't hesitate to use any of them in the 10/22 except the Aguila's, mainly due to the problems with cycling. The Fiochi's were almost as accurate as the Wolf ammo, and cost about $2 per box less than the Wolf. I'll probably buy some more of the Fiochi's the next time I order some. I have a buddy that just bought a Clark Custom barrel and it shot the Remington sub-sonics very well. I brought him some Wolf and Fiochi to try but I haven't found out how they shot in his gun.
Hevi-5