Range Report - New Ruger 22/45 MK III

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ZeSpectre

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Range Review

Ruger 2245- P4MKIII bull barrel
(Ruger 22/45 MK III “Target” model) with 4” bull barrel.
Ruger-P4MKIII.jpg

Took this new purchase to the range for the first time and ran 350 rounds through it (a mix of 31 grain Federal Spitfire hollowpoints and 40 grain CCI Blazer solids). I then took it home, field stripped, cleaned, and re-assembled it.

At the range I found the pistol to be extremely accurate. The trigger action was nice enough though nothing to write home about. In terms of the new features I found the loaded chamber indicator to be a nice touch and also liked the re-located magazine release. However this pistol is simply NOT southpaw friendly, especially where the safety and bolt release are concerned.

The new “magazine safety” (where the trigger does not engage if a magazine is not inserted) is a royal pain in the ass and if I can figure out a good way to disable it I will do so. It becomes an exceptional hinderance when field stripping and re-assembling the pistol (which is already stupidly complex in the first place and reminds me of my Rossi 92 levergun).

Action felt a little rough at first but smoothed out noticably after about 150 rounds. No FTE issues but I hit several FTF issues, mostly with the hollowpoint Federal Spitfire rounds although it also happened once with the solid point CCI Blazer rounds.

Some of this may be related to cartridge length because the Hollowpoint Federal Spitfire is .93 inches OAL, the Solid point CCI Blazer .98 inches OAL (and my orange plastic snap caps .95 inches OAL). What I noticed was that the shorter rounds can sometimes “lay flat” in the magazine and when the bolt comes forward it simply “spikes” the bullet on the sharp tip of the feed ramp. (see photos below)

22_45_002.jpg

22_45_003.gif

22_45_001.gif

It’ is my opinion that this problem could be fixed with either a slight magazine re-design or more likely by extending the feed ramp about 2-3mm.

Now about field strip, cleaning and re-assembly.

Following Ruger’s directions step by step the teardown was relatively quick and painless although the magazine safety adds several otherwise unnecessary steps to the process. (I think it’s a royal pain to have to insert the magazine so you can release the firing pin, then remove the magazine so you can unlatch the retaining lever, etc.)

With the bolt out cleaning was extremely simple and straightforward.

Then came re-assembly. Even following the user manual step by step it took me three tries to get this thing back together because I kept holding the gun at an angle and missing this one little metal “finger” that you have to capture in just the right place in order for the trigger to work. Then the same “magazine-out, magazine-in, magazine-out dance again because of the magazine safety.

My final verdict.

It’s a nice shooting gun and although I could wish for a more crisp trigger I’m not complaining because with the over-complicated internal trigger mechanisim the “stack up” could have made things much worse. I have already developed a healthy hatred for the magazine safety but can work with it. I wish it was more “lefty” friendly.

And with all of that I still like the gun. The bull barrel gives it a nice weight and balance in my hand and since this gun is intended as a “plinker” and not something I will ever depend on in a critical situation, I am willing to overlook it’s quirks because it is both accurate and inexpensive.
 
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I had the same problem with my MKIII with rounds spiking against the feed ramp when the gun was new. It went away after 500 rounds and will now feed no matter what angle the round is at.
 
Shadetree gunsmith at work. A little file work and no more "magazine safety". I'm MUCH happier now as it takes about 5 steps out of the re-assembly process plus it just felt unnatural to put a magazine back into the firearm in order to release the hammer tension and put the gun away.
 
I have no idea what the reason is, I would wager on the magazine spring breaking in? Takes a little less oomph from the bolt to get the round to nose up in the chamber maybe? Not sure, don't really care :) I didn't change ammo, I have always used CCI target.
 
Hmmm...

I had the same problem with my 22/45 MkIII, but for me, it only seemed to be happening with one mag. did it with both winchester and remington bulk pack ammo. Will be very interested to see the response.
 
I've had the same problem with the first few rounds spiking against the bottom part of the feed ramp also. It only happens with one of my 2 mags. I'm pretty sure it's because i dropped the problematic mag in some Utah sand causing it to bind up. I'm planning on cleaning out the mag really well before the next usage.

Interesting to read that this appears to be a widespread problem though. Maybe I'll mail Ruger too if the problem doesn't go away after cleaning.

Are there instructions on how to disassemble the mag in the owner's manual?
 
Mag disassembly is easy on the 22/45 model. Take a spike of some sort and stick it in the hole in the bottom. The butt plate will now slide off.

WARNING - Keep control of all the parts or you will have a spring doing it's thing uncontained and you'll have parts all over. KEEP ANY SPRING UNDER TENSION AWAY FROM YOUR EYES!
 
Been watching this one for a little while; just make sure that the rounds loaded into the magazine are properly oriented and the problem is solved. Use your index finger on the top round to tilt the first round like shown in the picture.

magfeeding.jpg

Hope this helps.

R,
Bullseye


guntalk_logo_sm.jpg
 
I tried the finger fix that Bullseye57 suggested, sometimes it helped, other it did not. One one occasion when I finger fixed it, the round fell back down flat. I am going to try to disassemble, clean, and oil the mags slightly to see if that might help a bit.

Thanks for the help, though, as it as suggested, it may have just been a very dirty magazine.
 
Following up....

600+ rounds through the MK III now.

The FTF malfunction where the rounds would "spike" on the feed ramp always came from the magazine I had marked "B" so I disassembled the mag and found a slight bit of flash along the leading edge of the plastic plunger at the top of the spring (the part that pushes the rounds up). A few minutes work with an X-Acto knife removed the flash, I then cleaned and lightly lubed the magazine and haven't had an issue since with solid point ammo (CCI and Winchester). The hollow point Federal Spitfires will feed about 95% of the time and "spike" the rest of the time. I have decided this gun simply does not like hollowpoints.

The trigger has smoothed out enormously. I have no idea why unless there was some grit in there that I didn't notice initially.
 
just bought a new one in black MK III 22/45

I have an old one that i abuse the hell out of, that
works reliably no matter what ...
I complained about one of the mags when I bought it
and they gave me another new one
hope the feed ramp thing ,or mag thingisnt a prob...
havent shot it yet - next weekend
will swab it out and oil it and expect the best
if not ill let u kno
I use win high velocity in hollow points
in all my 22s
DS
 
Been watching this one for a little while; just make sure that the rounds loaded into the magazine are properly oriented and the problem is solved. Use your index finger on the top round to tilt the first round like shown in the picture.



Hope this helps.

R,
Bullseye

To the Op, you have been blessed by a post by a Ruger guru. Go to the link in his signature line and poke around. I eliminated the mag safety by following the instructions there. Nice change.
Joe
 
The Loaded Chamber Indicator (LCI) has been also known to cause problems, and as you've noticed the mag disconnect is a royal pain for dissasembly/reasembly. I also have no ideas why the moved the mag release on the MK III as I see no reason for tactical reloads on a .22 plinker/target pistol. Now you can't use MK II mags in a MK III (yes I know the 22/45 is a different animal).

Many have modified there MK III's to remove the LCI and mag disconnect essentially making them into a MK II except for the mag button. Either that or they just buy used or NOS MK II's like I have done. I won't touch a MK III.
 
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