Yeah. War Department says to whack things with a hammer
WAR DEPARTMENT TM TECHNICAL MANUAL 9 - 1276
"...indent the area in front of the dovetail slot. This
can best be done by using a large steel drift, placing the drift in the
location shown in figure 41, and rapping the drift with a hammer.
Undertake this operation with extreme caution. A blow only hard
enough to cause a flow of metal into the dovetail slot is necessary."
Then stake it. Man, I don't feel good about taking a hammer and drift to a USGI receiver. I have an Auto Ordnance repro with the same problem, so I could practice on something just as expensive but replaceable.
"Jeez, man, what's another word for 'stupid?'"
"Tactical." -Tom Servo
Marlin 795, 795ss, 39A Mountie, CZ-455 American, CZ-452 Scout, CZ-75 Kadet, AOM160 M1 Carbine, USGI M1 Carbine, M1 Garand, Dan Wesson PM7 1911