Ruger 22/45 barrel difference - Pics added Oct 1

[caperbound]

I have a stainless mkII variant 22/45 and had an identical blued version. Both 5.5" bull barrels. The rifling in the blued goes to the crown whereas the stainless barrel appears sleeved or counterbored around 3/8" in. Anybody know if this is a factory thing for the stainless barrel or perhaps a past repair to the crown. If it is a repair, whoever did it did an excellent job. Thanks

Crown measures 0.250" and smooth 0.810" in then ridge/ring and rifling begins.




22 case easily inserted

 

[JD22-250]

Mmmm not sure if I'm thinking the same as you but I had a Blued mk III and a stainless mk III. The blued had a recessed target crown whereas the stainless crown is not recessed as in the rifling goes right up flush with the end of the barrel

 

[caperbound]

Mmmm not sure if I'm thinking the same as you but I had a Blued mk III and a stainless mk III. The blued had a recessed target crown whereas the stainless crown is not recessed as in the rifling goes right up flush with the end of the barrel

For mine, the exterior appearance both look identical. No indent for a recessed target crown. When I look down the barrel it looks like a reburb Mosin nagant barrel that was counterbored. Near perfect smooth bore about 3/8" in, with a very defined ring then rifling is visible.

 

[JD22-250]

Hmm weird never seen that before

 

[wayupnorth]

pictures?

 

[wayupnorth]

when looking at the Ruger web page i found this
looks like the Hunter has the recessed cut barrel but the normal mkIII does not.

 

[JD22-250]

If you are on rimfirecentral.com. You could ask sgwgunsmith as he is the ruger MK series guru

 

[Juster]

My stainless Government Target Model has rifling up to the crown, I'm pretty sure my stainless 22/45 was the same, but I don't have it.

 

[caperbound]

Thanks for the responses so far. I have since posted on rim fire central and ruger forum net. Also emailed ruger. I can take a picture as requested but there will be nothing to see as tip of barrel is smooth like a regular bull barrel, I won't be able to get a pic of the inside of the bore, too small for my camera to focus.

 

[Juster]

too small for my camera to focus.

Sometimes a magnifying glass helps.

 

[caperbound]

Sometimes a magnifying glass helps.

I'll see what I can do. Might have a magnifying glass somewhere, otherwise I will buy one.

 

[caperbound]

Added pics

 

[OkayShooter]

I'll ask my buddy who has my old MKII 2245 Stainless. If his is the same.

I just checked my MKIII 2245 Target and its rifled to the end.

 

[plinker 777]

Weird. How's it shoot?

 

[caperbound]

Weird. How's it shoot?

Not sure. I recently bought it. Will try it soon.

 

[Blastattack]

Chambered on both ends? That's mighty weird I must say.

 

[plinker 777]

Chambered on both ends? That's mighty weird I must say.

...exactly what I thought.

 

[caperbound]

I ended up contacting Ruger about it. One of their technicians confirmed it would not have left the factory that way so very probable it was a repair.