I finally installed a new Kidd barrel (20-inch, .920, non-fluted) on my Ruger 10/22. The previous Butler Creek barrel wasn't even producing acceptable shotgun patterns at 25 yards, even with Eley Match. Note that I'm not slamming all Butler Creek barrels; just this one on my rifle.
I tested three brands of .22LR ammo: Lapua Midas +, SK Match Rifle, and Eley Match Pistol.
I first ran 30 of the Midas+ through the barrel, and when I switched ammo, I ran at least 20 of the new type before shooting for group.
Under less-than-ideal conditions at the range (gusts, mirage, etc.), the Midas + put 5 shots into 1/2-inch at 50 yards and into 1 inch at 100 yards. I strongly suspect that it could have done better for a more-skilled rimfire shooter.
The SK and Eley weren't too far behind, but there was no question that the barrel prefers the Midas +. (Now to buy more of the same lot.)
According to my Oehler 35P chronograph placed 6 feet from the muzzle:
- Lapua Midas + had a mean velocity of 1029 fps, an extreme spread of 40 fps, and a standard deviation of 10 fps.
- Eley Match Pistol had a mean velocity of 960 fps, an extreme spread of 68 fps, and a standard deviation of 27 fps.
- SK Rifle Match had a mean velocity of 996 fps, an extreme spread of 41 fps, and a standard deviation of 15 fps.
Needless to say, I was a bit surprised at the results for the Eley. I may repeat that test.
At $189 delivered, the new Kidd barrel is one of my better purchases, and I would like to thank all the forum members who recommended it. I now have a rifle that will be competitive in the monthly rimfire matches that have targets from 50 to 200 yards. (I may not be, but the rifle is.)
Cheers,
Richard
I tested three brands of .22LR ammo: Lapua Midas +, SK Match Rifle, and Eley Match Pistol.
I first ran 30 of the Midas+ through the barrel, and when I switched ammo, I ran at least 20 of the new type before shooting for group.
Under less-than-ideal conditions at the range (gusts, mirage, etc.), the Midas + put 5 shots into 1/2-inch at 50 yards and into 1 inch at 100 yards. I strongly suspect that it could have done better for a more-skilled rimfire shooter.
The SK and Eley weren't too far behind, but there was no question that the barrel prefers the Midas +. (Now to buy more of the same lot.)
According to my Oehler 35P chronograph placed 6 feet from the muzzle:
- Lapua Midas + had a mean velocity of 1029 fps, an extreme spread of 40 fps, and a standard deviation of 10 fps.
- Eley Match Pistol had a mean velocity of 960 fps, an extreme spread of 68 fps, and a standard deviation of 27 fps.
- SK Rifle Match had a mean velocity of 996 fps, an extreme spread of 41 fps, and a standard deviation of 15 fps.
Needless to say, I was a bit surprised at the results for the Eley. I may repeat that test.
At $189 delivered, the new Kidd barrel is one of my better purchases, and I would like to thank all the forum members who recommended it. I now have a rifle that will be competitive in the monthly rimfire matches that have targets from 50 to 200 yards. (I may not be, but the rifle is.)
Cheers,
Richard
