March 16th, 2017, 02:32 AM
Join Date: Mar 2017
Originally Posted by Iowegan
jhartmac, I bought my 10/22 TD in 2012. I had already owned several conventional 10/22s and knew about what to expect. Shortly after I bought my TD, I had to have cataracts removed from both eyes with man-made lens implants. After cataract surgery, I could see like a hawk at a distance but anything under 10 feet got progressively more blurry .... making iron sights on rifles pretty worthless. Before I had surgery, I could get 2 1/2 to 3" groups at 50 yards with my TD's open sights from a bench rest. After surgery, I'm embarrassed to say the groups were way bigger.
That's when I decided to buy a scope for the TD. After doing a lot of research, I ended up with a 2~7x Nikon rimfire scope .... a really great scope for the money and it matches a 22 LR trajectory just about perfect. My groups with the Nikon were just about as bad as with open sights .... something had to be wrong .... and it was. The coupling where the barrel seats in the receiver seemed to be very tight but the first thing I noticed was .... when I removed the barrel then put it back on, my POI would change and groups would open up a little. After shooting 50 rounds in one session, groups turned horrible. I tightened the lock ring as tight as possible. This shrunk the groups for several rounds then they opened back up again, leaving the lock ring slightly loose.
Turns out I bought a cantilever scope mount where the scope actually mounts on the barrel ... not the receiver. This solved my problems. I could now take the barrel off and put it back together later without changing POI. Further, groups were tighter than ever and didn't change as more ammo was fired.
With the cantilever mount, I now get about the same sized groups as my conventional 10/22s .... maybe even a little better. At 50 yards, I can maintain a 1" group using CCI Mini Mags. At 100 yards .... well let's just say I won't be winning any marksmanship medals but I can usually keep groups inside a 3" circle if the wind doesn't interfere.
Just as a point of comparison .... I have a CZ 452 2E bolt action 22 LR with a similar Nikon scope. It will group under an inch a 100 yards without trying too hard. I think if I experimented with different ammo, I could shrink the groups even tighter.
The 10/22 TD is primarily intended for easy transportation and storage. It is NOT a target rifle and was never intended to be one. As such, I think I'm getting way better performance than the gun was designed for .... all because of the cantilever scope mount and a nice bright scope.
WOW...........thank you for that, you have restored my faith and interest back to the TD model and I believe you are correct about the scope mount location as well. Excellent reference...........