Each .22 seems to prefer its own ammo. My favorite bolt action just loves CCI Blazer - Of course, some cheap .22 bulk ammo varies terribly
Trying a wide variety in your .22s can surprise you. Often a less expensive brand will outperform match target ammo in a particular firearm
As someone who has toyed with the idea of accurate shooting/ then accurately shooting .22s, there is just so much frustration to getting it really right. Getting five shot groups to 1/2 inch (center to center) at fifty yards is barely the start. Getting to 1/4 inch at 50 yards is the edge of the goal. Translating this to ~3/4" at 100 yards is a difficult step. Here are the results of a lot of Tenex ($17.99 for 50 plus shipping) used to decide if you want to buy this particular lot. Copy and paste: 1018-03069
ELEY Lot analyser
Notice that these are for
ten shot groups at 50
meters. The numbers represent edge to edge distance. I would probably subtract 0.223 to get center to center size. Notice also, the
50 shot group at the bottom.
Here is an interesting video (not me) of Tenex from an Anschutz from a machine rest:
eley tenex machine rest - Bing video
Now the part that requires "don't take this the wrong way"... if you can shoot CCI Blazer better than Tenex, it just means that you can't utilize the accuracy potential of the ammunition with your current set up. The term set up includes but is not limited to (ammunition), rifle, scope, rest, and your skill level. One of these will be the limiting factor in how accurately you can shoot from the bench. Unfortunately, if your skill level it the limiting factor, the less accurate ammunition can do better than the more accurate ammunition.
Skill level includes but is not limited to correct/uniform technique, reading the wind, mirage, eyesight, trigger release, and recoil management/follow through. I have this problem and it is frustrating if you want to shoot in say IR 50/50. At least you can get by with some middle $ ammo (and save your money) until you decide to step up and make the commitment ($$$/time) to be really good.
Of course, if you are happy shooting the Blazer, I am happy for you.