Not common at all !! Jim Clark Sr. used a Ruger with a like muzzle brake in some of this shooting. The design is very much like the brake on the Clark Rugers .I'n not sure if he designed the brake for Ruger or ??? Need a more historically astute gunner than I on that one. I will check and see if RL Wilson mentions that brake in the Mark I section.
Beautiful gun, nice find !! A 54 grip frame.
Now that is an excellent find. I'm not much into the older marks but I would have snapped that puppy up myself. If you shoot it, would love to see your range report on it, and what you think of the muzzle brake!
The early Rugers , pre MK II's, had two types of grip frames. The A54 ,earlier type, and the A100 grip frame. The A54 , the first type Ruger came out with, has the grip screw configuration that has the right hand , bottom , grip screw higher than the A100,later grip frame modification . The cut out for the magazine button , in the A54 will be on the right and all later grip frame will be on the left.
The A100 grip frame are either marked A100 or not marked at all. The grips that will fit the more modern A100 grip frame will not fit the A54 . I believe there is a sticky on this in the Mark I section.
Very nice pistol for a 1960 ish vintage. There were two variations of that muzzle brake. The only difference between them was the addition of "Inc." to the roll-stamping die for the lettering. The brakes alone sell for $200.00 of slightly more if the box is included.
__________________ Turning Ruger Mark pistols into the way they SHOULD perform . http://saronagunworks.com (A secure web-site)
I have one of these that I picked up from a guy that showed me 2 1st place metals that he won with it in Las Vegas back in the late 50s. He was the original owner. Unfortunately I didn't get his name. This was about 20 yrs ago and I almost passed it up, thinking that the brake was an after market job, until I turned it over and saw the marking on the brake. I got it for his asking price which was $199.00. Got change from a $200.00 bill.
Yours might be in a little better shape than mine, I haven't looked at it in awhile. I sure wouldn't let it go for $300.00. But I might take $500.00.
You did GOOD!
When I was in the Army on active duty in the early 1960s, I shot as a member of the post pistol team. Our issue .22 pistols were Mark I's. We had several of them equipped with the same muzzle brake you see here.
As an experiment, we tested one of these guns for accuracy in a Ransom rest, both with and without the muzzle brake.
As it turned out, when the gun did not have the brake attached, the accuracy was better by a noticeable amount. The brake may have helped with muzzle rise, but that was negligible to begin with. For best accuracy, do NOT use the brake.
Is the rear sight original?
I had a Mark I 6" standard model,
And a Mark II(?) 6 7/8 Tapered Model
The Mark II had a Clark Trigger and a Sighting plain (like on a shotgun) between the rear and front sight bases. Don't have a photo.
I recall the trigger was excellent and accuracy was superb. I could shoot resting dragonflies, off-hand and leave the wings to fall where they might.
(Don't shoot living things for fun,
anymore, of course)