Dang, now it?s a magazine problem.
I finally got to the range to test three new builds. They are: an AMD-63, an AMD-65 from Centerfiresystems parts kits and a Romanian from a mismatched I/O kit. I used Vulcan receivers on each.
All headspaced properly. The Romanian had a too tight magazine well. I had to Dremel a bit of the front trunion and the magazine release to get it to fit in without binding on the bolt. The others seemed fine. The Romanian fired well with one 20 rd Hungarian magazine. The AMD?s each fired well with their 20 rounders. (Don?t ask me why I mated a mag to each rifle ? dumb luck). They all fired well and seemed nice and tight.
I inadvertently switched mags and my ?65 suddenly failed to feed. The cartridge would jam and not enter the chamber. I switched mags and no problem. I switched back and ? failure to feed. I tried the third mag and clunk, the bolt hung up on the magazine. This has never happened before.
Typically I rivet the trigger guard first, insert a magazine then rivet the front trunion after egging the predrilled holes. The top groove in the trunion fits nicely in the receiver.
Has anyone experienced this issue with magazines and do you have a solution?