Need assistance diagnosing 1911 issue

RWT

WKR
Joined
Jul 4, 2022
Messages
1,161
Need assistance diagnosing a 1911 feeding issue.

Purchased this used STI guardian from GB of course with the claim of low round count as a house gun by an elderly gentleman. UM. Yeah.

I’ve had issues from the first magazine. Case would jam on extraction or not cycle the next round. Internet tells me magazine issue.
Purchased 3 new Mecgar 8 rd mags. Same issue regardless of ammo. Fed 147 FMJ and HP, Herters 115 FMJ, Browning124 FMJ and Monarch steel case 115 FMJ. All presented same issue with failure to cycle or extract.
Replaced large recoil spring per Dawson Precision. This is the $9.00 light per their recommendation.
Same issue.
Followed Forms advice and replaced extractor with WC BP.
Same issue.

Before I spend another $100 on the smaller recoils spring set up on Dawson site I would appreciate suggestions.

Issue is the same regardless of the magazine. I’ve tried WC 9rd, MecGar 8rd and the STI mag that came with the pistol. All stovepipe as in pic or do not cycle at all.

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