Home Forums Hunting & Shooting Rimfires Chrono test of various 22LR ammo

Hi - I did this test last Summer and I don't think I ever posted it here. Several brands thru my B22-FV on a couple warm days, only 10 or 20 rounds per flavour with just a dry patch between brands. Light breeze directly in my face both days. It looks like the CCI types shot as good an ES as the 'better' SK+ &SK-FNose. And the accuracy of the ammo is reflected in the lower ES when I shot at 50yds.

That ES on the better loads isn't too bad at all. I wonder how it would play out with the entire box

Yes, it would have been good to get more datum but I wanted to get onto actual target shooting and the days were both getting warm after 50+ rounds per day. It was quite sunny and that contributed to the ERR readings, some as bad as 40% ERR. And I have a limited supply of those 'better' Lots as they were all "Old Stock" from a couple years earlier, b4 the price hikes. I've saved a few boxes and just bought a CZ457 V-MTR that will get the rest as soon as the weather breaks. I'm in NE Canada and getting weekly doses of snow. I have an Athlon Argos 8-24x50 on the MTR but haven't been out yet.
As I said, the low ES was supported by groups around 1/2- 3/4" @ 50, considering the breeze running in my face. The scope on that rifle is a Covenant-4 6-24x50 FFP-SF in MOA that worked quite well for a low-cost scope.

Cool test!

I appreciate you sharing the results. I know it's both fun and a bit of a PITA to do that. ES is the bane of rimfire accuracy.

Haven't done anything with this detail, but do have some info that parallels the OP findings.

Norma Tac


Wolf MT


Wolf, Norma, .22 GTC

Back again - Here's the only time I shot a lot of groups last year. Nothing as impressive as Dan's shots, but these show a wide range of accuracy. The top Row was with my Marlin-60 and a 12x scope. All the rest is my CZ455 SS Lux and a Covenant 4 6-24x50 FFP. The SK-Flat Nose at the bottom was the most consistent here and was the Second best ES in my earlier tests. And the SK-RM had the Best and Worst groups. I had a 10-15mph wind quartering from my front left and it was Sunny and 70*F. The Bull with 'R' was a friends 10/22 with SK+ and 'C' is CZ w-Fed Champion 40g. I only ran a dry patch between brands but started with the rifle clean. I use Boretech C4 for the chamber and Hoppes #9 for the bore, 'rinse' with 90% alcohol, then oil with Mobil 1