09-06-2017, 10:47 PM
(09-06-2017, 05:37 PM)randyc Wrote: I read somewhere that the .22 Mag bullet diameter is a skosh smaller (or larger ?) than .22 LR.
It's true. The bore diameters for the .22 WMR are indeed slightly larger but not by much.
SAAMI specs:
22 LR
Bore: 0.217 in (5.51 mm)
Groove: 0.222 in (5.64 mm)
22 WMR
Bore: 0.219 in (5.56 mm)
Groove: 0.224 in (5.69 mm)
The only trouble with the Single Six is that the barrel has to be sized for the magnum bullets of course. Which means that when you are shooting .22LR ammo the smaller bullets are sort of rattling around a bit going through the larger bore. That's the reason they aren't tack drivers as you pointed out.
You run into the same problem using .22LR conversions in standard AR-15 barrels. The .223 Rem / 5.56 NATO bullets are .224" diameter so if you are shooting .222" LR bullets through the bore.... again accuracy isn't that great. I have a Colt H-Bar that came with a Colt factory .22 conversion unit. It works, but it's nothing to crow about. I set about building myself a dedicated .22LR AR-15 some time ago. There is a thread here somewhere about when I machined the lower receiver for it. When it came down to the barrel though I used one with the proper bore and twist rate for the .22LR. It puts them where you point them I can tell you that.
Hang on to that High Standard. They don't make them like that anymore. Would love to have (at least) one myself!
I would have to say my favorite 1911 is my Kimber Super Match that is simply an extension of my hand. It fits so well it's like a part of me. This is the custom shop 25 yard test fire target that came in the case with the gun.
Willie