I've fed a few hundred rounds of this particular box of bulk through other Ruger .22s without issue, but I had about 10 miscellaneous failures with the Sporter.
During 4000 round break-in of 10/22 shooting 25+ different brands/weights of ammunition, I experienced 100% reliability of feeding and ignition (Winchester M22 was only one that produced duds) until fouling build up in the chamber, bolt and magazine -
https://www.thehighroad.org/index.php?threads/real-world-accurizing-22lr-on-the-cheap.898035/
After cleaning chamber/bolt/magazine, 10/22 was back to 100% feeding and ignition. (After 10,000+ rounds through 10/22 and T/CR22, I bought replacement Ruger 10 round rotary magazines for continued 100% reliable feeding as cleaning the magazine no longer ensured 100% reliable feeding)
And if you want smaller groups, consider trigger mod/enhancement. Factory 7.5 lb trigger out of the box definitely added to trigger input moving the muzzle to increase group size. After 4000 round break-in, trigger pull went down to 4.5 lbs and slightly reduced group size. After
$43 Volquartsen Target Hammer kit upgrade, trigger pull went down to 2.75 lbs initially then 2.5 lbs to significantly reduce group size (1/2" for CCI SV and 3/4" for Aguila SV/HV). FYI, 5% off with
THRFORUM discount code on $50+ orders -
https://www.opticsplanet.com/volquartsen-target-hammer-for-ruger-10-22-and-10-22-magnum.html
And Patriot Precision trigger spring kit lowered trigger pull down to just over 2 lbs -
https://www.ebay.com/itm/125258485144
BTW, factory 10/22 bolt without pinned firing pin and not being square/improper headspace with barrel can add to flyers, especially first shot flyer from front of firing pin rising. So if you are experiencing flyers, have CPC rework the bolt face to headspace/square with barrel and to pin the firing pin. This is what CPC does for $50 (Or you can go with
$124 Power Custom Match bolt):
- Bolt is disassembled and ultrasonically cleaned.
- Headspace is surface ground and squared to a .0425 rim depth, the same as a bolt action rifle to tweak in a little accuracy.
- A hole is "E.D.M.'ed", a hardened ground solid dowel pin is pressed in over the top of the front of the firing pin ... This new dowel pin keeps the front of firing pin from raising up and causing flyers and gives more consistent firing pin strikes.
- Firing pin is reworked and surface ground flat.
- Rear / bottom of bolt body is full radiused for smoother/better bolt function with standard and high velocity ammo's.
- Bolt rework is $43 plus $7 flat rate Priority Mail ... Add $10 for CPC EDM tool steel extractor ... turnaround is approximately 2 1/2 weeks or less after it arrives.
