If the trigger assembly falls out after every shot, then either the stock wood is compressed or the trigger guard locking lugs are flattened /"D" shaped or both.
Swapping out the trigger guard should be tried first.
I had this exact issue a couple of months ago. I bought a NOS trigger guard ($35 (?)) and it fixed the problem. I wouldn't pass on the rifle (if it is otherwise a good deal) based on this problem.
I had this exact issue a couple of months ago. I bought a NOS trigger guard ($35 (?)) and it fixed the problem. I wouldn't pass on the rifle (if it is otherwise a good deal) based on this problem.
JGW
One has to make sure of the correct trigger guard if the rifle is to remain "era correct". There are more than 2 options.
Jon