High Standard Magazine Adjusting

[James K2020]

I have an early model Sport King that has the 'finger-style' mags that tend to go out of tolerance and require some fiddling so the cartridge feeds straight into the chamber. There is no feed ramp so the magazine guides have to be right on or the bullet hits too high or too low and jams.
The guys over at RimfireCentral say those style mags are an unknown if they get out of wack.
Anybody have experience with the early finger-style High Standard mags?

 

[243winxb]

No idea what finger-style Is.

 

[James K2020]

The fingers are the middle tabs between the front and rear guides. They aren't in the later versions like the one you show.

 

[John Stimson]

This is a finger style magazine Fron the era in question. There are variations.

 

[243winxb]

May get more help if this is moved to gunsmithing?

Your slide looks like its over riding the cartridge? Slide not going back far enough on firing. Or the magazine is slow to allow the next round to move up fast enough? I would spray everything with WD40. (Please skip the debate on WD-40 ty)

My Ruger Mk1 has the fingers. Its newer replacement does not. May try bending the fingers in .002" at a time & test fire. If lube doesnt help.

Ruger MK1-

 

[JJFitch]

Google: High Standard, Magazine adjustment, Jim Barta
Google: High standard, Magazine adjustment, John Stimson

Smiles,

 

[John Stimson]

Google: High Standard, Magazine adjustment, Jim Barta
Google: High standard, Magazine adjustment, John Stimson

Smiles,

The Late Jim Barta's instructions for magazine adjsutment are for the later lip style magazines and are not related to the earlier finger style magazine. I have seen no equivalent guidance for the earlier finger magazines.

 

[John Stimson]

May get more help if this is moved to gunsmithing?

Your slide looks like its over riding the cartridge? Slide not going back far enough on firing. Or the magazine is slow to allow the next round to move up fast enough? I would spray everything with WD40. (Please skip the debate on WD-40 ty)

My Ruger Mk1 has the fingers. Its newer replacement does not. May try bending the fingers in .002" at a time & test fire. If lube doesnt help.

Ruger MK1-View attachment 1047379 View attachment 1047380

The original Ruger .22 pistol magazines used the magazine shell from a High Stadanrd magazine with a new bottom installed. Reference the Don Findley article in the Ruger Journal.

 

[JJFitch]

The Late Jim Barta's instructions for magazine adjsutment are for the later lip style magazines and are not related to the earlier finger style magazine. I have seen no equivalent guidance for the earlier finger magazines.

Sometimes opening a post reviewing one style of a firearms form or function leads to other posts to answer the original post. I know this has helped me in the past.

P.S. I use Jim Barta's instructions for maintaining the 10 or so magazines I have for my small collection of H/S's!

Smiles,

 

[John Stimson]

Sometimes opening a post reviewing one style of a firearms form or function leads to other posts to answer the original post. I know this has helped me in the past.

P.S. I use Jim Barta's instructions for maintaining the 10 or so magazines I have for my small collection of H/S's!

Smiles,

I am the person who, with Jim's daughter's permission, has preservred his webpages.

 

[Jeff olson]

I have an early model Sport King that has the 'finger-style' mags that tend to go out of tolerance and require some fiddling so the cartridge feeds straight into the chamber. There is no feed ramp so the magazine guides have to be right on or the bullet hits too high or too low and jams.
The guys over at RimfireCentral say those style mags are an unknown if they get out of wack.
Anybody have experience with the early finger-style High Standard mags?

View attachment 1047143

View attachment 1047144

Fwiw, I have 2 of these magazines. Both belong to 2 different h-d military. I don't have a caliper or micrometer handy to measure for you. But, both of these feed, fire, eject perfectly so they are spot on.

 

[James K2020]

The Late Jim Barta's instructions for magazine adjsutment are for the later lip style magazines and are not related to the earlier finger style magazine. I have seen no equivalent guidance for the earlier finger magazines.

I did read Jim Barta's instructions and even though he did not address the finger style mags directly he made a point that the front lip of the rear guide needs to keep the rim of the cartridge underneath the entire length of the lip or the bullet part at the front will rise up and impact the top of the chamber. I've pinched those a little tighter and manually slid cartridges forward and adjusted until they remained under the lip the whole distance. I'll test outside once the weather improves.

 

[James K2020]

I did some adjusting on one of the mags. Now it fails after the first shot but after I clear and re-chamber the following rounds cycle just fine. Does it every time, only on the first auto-chamber. After that it goes for the rest of the mag. Only mishits on that second round.