Jump to content
Brian Enos's Forums... Maku mozo!

Ruger Mark IV 22/45 Lite Ammo


nhglyn
 Share

Recommended Posts

I have a Ruger Mark IV 22/45 Lite that I have upgraded with Tandemkross parts.  Have added their TK compensator, Halo charging ring, Volquartzen trigger kit, TK trigger, TK extractor etc.   Gun shoots great but seems finicky about what ammo it likes.  Tried CCI standard velocity and was getting a number of fail to extracts.  Figured it was the extra weight of the Halo on the bolt slowing things down so switched to Federal high velocity.  Works better with fewer FTE's but getting some failure to fires.  What should I try next to make this 100%?  Was thinking about trying CCI MIni Mag, anything else that is not ridiculously expensive?  Thanks for any suggestions.

Edited by nhglyn
Link to comment
Share on other sites

I have 2 Mark III 22/45 lites and my Dad has the same in Mark IV.  We have shot them in steel challenge for several years and have had very few issues with CCI Mini Mags (both 36gr and 40gr) and Blazer in the 50 round box (not the bulk box stuff).

Link to comment
Share on other sites

  • 1 month later...

You could try a lighter recoil spring.  My wife (and I) have noted a difference in her two otherwise identical 22/45 lites; the one with the highest mileage is more tolerant of lower-powered ammo.  I'll throw in something else we've noted as we continue to struggle finding 22lr ammo in quantity: I purchased some of the pink-coated HV CCI ammo.  The ammo functions fine in her Wiland-barreled 10/22, more than adequate accuracy for steel challenge.  This same ammo in her 22/45 is minute of steel plate - several inch group at 10 yards.  Yes, the 10/22 has a 5.5" barrel and the 22/45 a 4" barrel +-, but this is very strange.

Edited by RickT
Link to comment
Share on other sites

My Mark 2 22/45 was fussy and too failure prone to consider taking it to a steel challenge match.

 

At the advice of a friend I went through the mags (u-tube mag tuning video) and replaced the loaded chamber indicator with a blank (eliminates drag on slide) and installed the Volquartzen trigger kit. I was lucky to make it through a mag before and do not remember a single ftf since doing the work, but, disclaimer, I haven't shot it for hundreds or thousands of rounds since. The changes made a huge difference in reliability but possibly I could find that it now fails 1/100-200 and is still not match level good. 

Link to comment
Share on other sites

I've tweaked the mags and we use CCI mini-mags for matches (we=wife!).  Reliability is acceptable for the laid back, 4 stage matches in Idaho, but I consider 22lr pistols in general as having the potential to lead to divorce, similar to a couple riding a tandem except one person doesn't even get to ride.  

Link to comment
Share on other sites

I've had very good luck  with CCI Blazers and my Mark IV 22/45 and Mamba.  Last month I tried CCI - SV at our Steel Challenge Match and had so many FTE that it wasn't fun.

 

I bought some Eley Action Plus and it's been working real well.  I think this will become my new match ammo.  I also have some Eley Force, again no problems with FTF or FTE.

 

 

_DSC9727.jpg

Link to comment
Share on other sites

I have a Mark III 22/45 Lite that I put together for my granddaughter. Took the loaded chamber indicator out, which helped, but still had occasional failures. Then swapped out the bolt to a Volquartsen and stayed with CCi mini mags, still had a few failures. Swapped the mag springs out with the stiffer TK ones and and it now runs 99.9%. I have tried other ammo for practice and as long as it is a higher FPS it seems to work fine, but for SC matches she only shoots the CCI. Stick with what works in matches.

 

gerritm

Link to comment
Share on other sites

  • 2 weeks later...

Bought a New IV Lite for my wife and a regular for myself. I don’t think I had run 2 mags through the lite and started getting FTE. The extractor would just slip off the rim and getting the empty out was more difficult than it should have been.  Pulled a loaded round from the chamber and the bullet was all scraped up on the driving band and the brass had crud on it. Pulled it apart and CLOSELY inspected the throat and it was leaded so bad it looked like you had taken a rasp to it. An hour later with a brush wrapped with a copper chore boy I got it cleaned out. It had to be done at the factory during test firings as mine was exactly the same and it was shot the same amount. The throat is smooth (now) and shiny. Haven’t had a chance to shoot them again but can’t hardly believe that they could leaded up that bad in only 20 rounds. 

Edited by Farmer
Link to comment
Share on other sites

Working with a IV lite, here, too.  upgraded to TK extractor and firing pin+ fp spring, plus the Volquartsen accuracy parts ( hammer and sear, trigger, etc). Before the upgrades, it had fail to extracts, hasn't really done it since the upgrades. This one likes thunderbolts best out of all we've tried.  A bit dirty, but very slippery coating on the lead, so they seem to feed well in all my .22lr guns. ( This one, a Kel Tec cp33, a heavily modded GSG 1911-22, and an HK 416-22)The accuracy is slightly better than any of the CCI stuff I've tried, at half the price.  In my accuracy test, the pink cci cleans really performed poorly, I think they were the worst one of the lot.  The CCI Ar-22's were second best to the Thunderbolts. 

 

   @Farmer, I'll have to double check for that leading thing. Seemed like it was pretty clean to begin with, but I couldn't swear to it. 

Link to comment
Share on other sites

  • 2 months later...

Just bought a Mk4 Target and had numerous FTF using CCI Standard (40 gr 1080), Norma Match-22 Elite (40gr 1100), and Wolf Match Extra (40gr 1050). Called Ruger and they said this is common outside the 1100-1400 FPS range. Any suggestions for target ammo in that range? I'll pay for quality, but I just compete for fun in a local league so I'll happily fall back on reliability.

 

Wait. What Ruger told me doesn't make sense to me. Do they use different primers in high velocity rounds?

Edited by gavagai
Link to comment
Share on other sites

  • 2 months later...

My Ruger 22/45 lite shoots WW Super-X 40gr, Federal 36 gr, WW M22, Remington golden bullet, CCI mini mag, and Remington thunderbolt without failing. Keep the gun clean.

Link to comment
Share on other sites

Well, I started getting so many ftf with the Eley Action Plus that I sold the rest of it and went back to CCI Blazers.  The 40 grainers that come 50 in a box.  The bulk packed Blazers work well but not good enough for match ammo.  I got some Aguila Super Extra 40 grain and they are working 100 %.  I'll use them as backup ammo.

 

Federal HV works real well and works in my 617 as well. 

 

I've been using my backup, a Mark IV 22/45 Lite with 5.5 inch target barrel with  a lot of success.  I'm going to start shooting RFPI for a bit just because...

Mamba and Mark IV with Irons.jpg

Link to comment
Share on other sites

  • 9 months later...

I have a Ruger Mark IV 22/45 Lite as well.  Tandemkross trigger and Volquartsen accurizing kit.  It was quite a finicky gun when it came to ammo up until about 1000 rounds.  According to a nice lady at Ruger, I was to try CCI Mini Mags and be patient through the long break in period.  The Mini Mags were a nice improvement.  As I put more rounds through my 22/45, CCI Blazers rock in mine and they are my go to round.  After the long break in, the gun is MUCH less finicky to the ammo being used.

I'd love to get another 22/45 but I don't know if I want to spend the time for the long break in!  Spectacular gun though.  I have way too many 22 pistols and this one is in my top few for sure.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...