22 Mag
Just to prove Rocky's point about trying different brands, mine likes the CCI Maxi Mag best. My Savage will consistantly hit a 3" spinner at 100 yards using 3x9 Burris. Oh ya, its a rimfire version of their Striker...a handgun, with a 10" barrel. Winchesters are a definite no go, it likes Federals next, then Remington. The 40 gr loads all shoot better than the 33 gr hyper versions.
It's my finding that the rim on WMR ammo varies in thickness quite substantially between brands, thereby affecting headspace in any one gun. The CCI's have the thickest rim and therefore work best in mine because it has a rebated bolt face. Winchesters have the thinnest rim.(IN MY GUN), they often misfire or stick when the base of the case expands from excessive headspace.That's why it's important to try different brands. What's best in one gun may not be a pet load in another.
I have not seen match 22 WMR ammo.
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