Remington 760 .243 “semi Auto”

[Kikilee]

I inherited a couple of my uncle guns and one of them has me perplexed.
It is marked on the receiver as a 760 Gamemaster but it’s a semi auto.
I can’t find anything online that references a 760 in a semi auto.
Everything I find says the 760 was only made in a pump action.
Any advise or info to help me figure this out would be greatly appreciated.

[Kikilee]

Here is the response I got from Remington today!

[600RemGuy]

What a strange answer from Remington. There is zero way a 760 receiver can be used to build an auto-loading 742. Not enuff machining for that to be able to happen. What happened is the receiver was roll-marked incorrectly as a 760. I would have liked to seen the box saved for said rifle. That would have told the real story.

[GeneM]

I had one of these Model Stamping errors - a Model 742, in .30-06, stamped Gamemaster Model 760. with a barrel date of Oct 1977. A gun shop in Maine had a 742 in .308 with a barrel date of Oct 1973 that was also stamped Gamemaster Model 760. I know of at least one factory assembly error a Model 742 receiver with Model 760 parts in 6mm Rem and a barrel date of May 1979. The box is stamped Model 760. It functions.

All of these eluded four or five inspections including the final packing verifying the serial number. I have heard several explanations but all are speculative.

[marlinman93]

I'm sure these mis-marked rifles are not extremely common, but it is interesting to read that so many are known to exist? Makes me wonder how the serial numbers might align, and how many were mis-marked before somebody caught it and got the correct rollstamp put back on them?