This model comes with two cylinders, one for .22lr and the other for .22 mag (.22 WMR right?). While looking at .22 WMR ammo today, it looks like its just a longer .22lr. If thats so, why the two separate cylinders? If the .22 WMR cylinder shoot .22lr also couldnt I just leave that cylinder in at all times?
Chamber pressures are different.
Originally Posted By BlindFaith429:
22 mag is a larger diameter body, as well as larger bullet.
22 Mag is the "standard" caliber of .224 (if I recall correctly). 22LR bullet diameter is slightly smaller, .220 i believe.
22 LR has the same diameter case and bullet. the bullet is stepped on the rear to fit into the case. 22 Mag on the other hand has a "straight wall" bullet and the case goes outside it, therefor the larger diameter.
That is why the 22lr cases split in the 22 mag chamber, cause of the difference in diameter.
I am not 100% positive on this, but I also think the rim thickness varies, don't know numbers off the top of my head
Long story short, don't use the 22 Mag cylinder if you have the 22LR cylinder handy.
.22LR is a heeled projectile, .22 mag is seated inside of a casing like a normal centerfire round, but has close to nominally the same diameter, leading to substantially different casing sizes.
Thanks guys. I think Im gonna go for the Single Ten instead. I probably would use this gun in a manner that would justify the additional power of. 22 mag.