"Customize the Ruger 10/22, 2nd Edition" but James and Kathleen House ... accuracy of the take-down model was the worst for any of the Ruger 10/22 models tested. As a comparison, the standard carbine model with 16.5" blued barrel shot 5 round groups at 50 yards with an extreme dispersion of 1.31" averaged for the 16 different ammo types tested. For the take-down model in the stock configuration, that average was 2.31".
CCI Standard Velocity ... average for the 5 groups at 50 yards was 0.88". For the take-down model with stainless barrel in the stock configuration, average group size with the same ammo was 2.36".
The book finding correlates with my "real world" stock 10/22 Collector #3 18.5" thread findings with my Take Down 18.5" producing slightly larger than 1.5" 10 shot 50 yard group and Collector #3 18.5" producing slightly larger than 1.0" to sub 1" 10 shot 50 yard groups -
https://www.thehighroad.org/index.php?threads/10-22-takedown-vs-standard.863145/#post-11381683
I just ordered Thompson Center TCR22 with MagPul stock so stay tuned for another "real world" ammo comparison thread.
What ammo gave you the problems?
Worst was the Winchester Wildcat but that doesn’t work well in anything I have. Most of what I have shot out of it was in a bulk pack, whether it was Federal, Winchester etc. I can’t remember if I shot any CCI
I have tested over 20 ammunition brands/types in my Take Down and Collector #3 along with friend's standard 10/22 and several 16"/18"/20" ARs with CMMG 22LR bolt conversions (over 10,000 rounds) and
current production lots purchased within the past 2 years all have fired WITHOUT ANY MISFIRES with the exception of Winchester 40 gr CPRN M22 (I get several misfires in each 500 round box).
As to accuracy, CCI SV and CCI Blazer (40 gr boxed, not 500 round bulk) along with Aguila 40 gr Lead RN continue to produce consistently smallest one hole 10 round groups at 25 yards and smallest 50 yard groups. (While Federal Auto Match and Remington Thunderbolt do produce small groups, but not consistently - see below target groups)
Take Down 18.5" produced this smallest 1.5" 10 shot group at 50 yards with barrel ring tightened as much as I could to the point where I just barely could rotate the barrel to lock into place.
But 18.5" Collector #3 with V-block shim and electrical tape around rear of receiver produced these 1" and sub 1" 10 shot groups at 50 yards -
https://www.thehighroad.org/index.p...lector-3-break-in.859106/page-2#post-11351163
Notice the consistency of group size with Aguila 40 gr CPRN (And if you combine the two 5 shot groups at the bottom, you get comparable 1" group as two 10 shot groups on top of target)
I was really trying to squeeze out the smallest Aguila groups at the end of the shooting session but the tight groups opened up with flyers which may express the extend of overall group size (Of course, stopping at 5 shot groups would have resulted in much smaller groups and why I shoot 10 round groups now).
And depending on the handful of rounds you grab from the box, 10/22 CAN PRODUCE sub 1" groups at 50 yards as demonstrated by groups on bottom right (The flyer for Thunderbolt group on bottom right matches the flyer on bottom left ... And the flyer to top left I believe belongs to Thunderbolt group also ... oh well, at least every round went bang.
) With close to 3000 rounds shot with the Collector, I don't think such flyers are due to trigger
or the shooter