We chose the Ruger Mark III as our
best .22 caliber target pistol
and wasted a full day diagnosing a horrible jamming
problem, but it was quickly fixed by moving to a higher-grain
We got the Remington golden bullet, 40 grain,
and she performed flawlessly, a joyous pistol with remarkable
accuracy at 25 yards.
Before you get it right, the Ruger Mark III is a jamming machine
Steps to fix Ruger Mark III Jamming
We carefully evaluated all of the top .22 target pistols, and bought a new
Ruger Mark III target pistol largely because it has a reputation is not being fussy eater and outstanding accuracy.
However, there are many reports for Roger Mark III jamming problems.
To save you some reading, here is how we tuned our Mark III to stop jamming.
These jamming fix steps are listed in order of their probability to fix, and the fix solution using high-powered .22 ammo made a fast difference for us.
1 - Changing to High-powered ammo stops jamming:
When we tried it with Wal-Mart Winchester X-TRA ammo, the Ruger Mark III jammed every other shot.
The CCI mini mag .22 bullets have a wax-coating that made it difficult to load more than six rounds.
Winchester 40 grain bullets performed flawlessly with all 10 rounds in the clip Our end solution was to use higher power bullets. With 40 grain ammo, the Mark III performed flawlessly with no jamming.
After searching the web, there are the steps to diagnose and fix Ruger Mark III jamming problems:
2 – Magazine stove piping
- A cheap magazine can be responsible for Ruger Mark III
Jamming. We then followed these directions for fixing the magazine to reduce
Ruger Mark III jamming:
3 – Change the extractor – For a new Ruger, the
manufacturer will mail you a better extractor assembly. Some recommend the Volquartsen Exact Edge Extractor to quickly fix Ruger Mark III jamming problems.
4 – Remove the Loaded chamber indicator (LCI) – It’s just a silly hinge that gives a false positive when empty brass is in the chamber, and some people report that removing the LCI make the bullets load easier and stops all jamming.
5 – Send to Ruger – As a last resort, mail your new Ruger to Ruger company. They are said to have excellent support.