Originally Posted By: OldTurtleDon't know if it's considered a "Target" model, or not, but mine is not real picky on ammo for hunting purposes, but like most firearms, if shooting competitions, it pays to try several brands/types of ammo for optimum results..I have accumulated over 25 variations of ammo in the search and have four or five .22 rifles to feed, as well as a couple of pistols..
The trigger produced more startling results than even the barrel in my case...Mine is set up with a Magnum Research carbon fiber wrapped barrel and the addition of the Timney drop in trigger made a big difference..
Are those Magnum Research barrels cut to what they call the natch chambers? If they are keep the higher velocity rounds that have the longer brass out of them.
I was able to tell by closing a standard velocity round and then ejecting it to see where any lands might be touching and how deep. Then do the same thing to a longer brassed high velocity round if there wasn't any land engagement to the base of the bullet itself. The match chambers are easy to see deeper land engagement. On mini-mags you will see where the lands actually cut into the brass itself at the end.
I've always preferred the pinhole accuracy of a lower velocity round for hunting than higher velocities that tend to group wider than an inch. I usually test ammo at 25 yards, then when I find ammo the rifle likes take it out to 50yds. I have all of the higher velocity rounds made, and haven't found a one that shoots well in rifles, then I found that my Colt Diamondback .22 loves them as much as it does everything else. It's a great way to get extra juice out of the pistol, you can feel the difference when you shoot it.
