Slide stop pin fitting

First topic message reminder :

To the gunsmiths, I have a old colt 70 series, the slide stop pin hole on the right side is larger than the slid stop pin and has a real sloppy fit, how should the pin fit, loose, or snug fit? is there a way to tighten up the hole, ive seen one done by welding and redrilling, is this the best way? or could a slide stop pin be welded to be larger then turned down to fit?

It is only cheaper if you don't count the labor.  Even a cheap machine shop these days charges 75 per hour.

Yes Frank, all of what you say is correct for accuracy for this project.  It needs to be rebarrelled because the lugs were not fitted properly and it's not worth saving.
Step 1 for this gun is getting the slide stop bit fixed up--then we will fit a new barrel and bushing...that should put this thing back into competition.

Thanks to both you and Jerry for your input and ideas...now to execute...

Question,
What causes such extreme battering?

Good question that's why I asked in what direction. Be interesting to figure out why one side. Someone may have attempted to re-barrel and cut that leading edge with a big radius on the lower lug with a short link. That's not good! Put a heavy spring to get it to close and fired Ball because it wouldn't shoot 185gr target. Photo of the lower lug will be interesting to see!

I'd post more pics but it's at my friend's shop. Causes? In this case it was an early Stainless frame...those have iffy metallurgy. ..the slide stop pin was tapered and undersized on the battered end. The barrel link isn't right, and the barrel lugs are cut...in a really odd way. Add that to a 10 lb recoil spring and years of hardball through it, and I think I'm lucky that there wasn't more wrong with it.

Had a frame that had oversized slide stop pin holes, both sides were oversized if i remember correctly, Ten Ring Precision made a bushing and welded it with a water cooled tig, worked out really well.  Brownells sells an EGW slide stop with an oversized pin (.203) that may help some pistols.

Could a sloppy pin-fit condition cause my occasional problem of stacking POI toward 12:00 when firing from a bench/pistol rest?  Neither my barrel nor frame lugs show any signs of wear and tear but the link/stop pin fit seems very loose.

Bigtrout,
The short answer is yes. Vertical stringing can come from incorrect lockup caused by poor link/slide stop pin fit.

You should ask this in a new thread to keep the different questions separate.