Re: Trainer for Win 70/FN SPR
Winchester 52B's (made approx after the 1940's) are somewhat the 22rf version of the win 70 target rifles of the era, but bear in mind they have the walnut winchester marksman configuration stocks, which are virtually the same as the winchester centerfire hb or target models.
The same holds for the C, D and E prefix model 52's also. But the B's and C's come the closest to the High Power big brothers.
For what its worth, McM makes a winchester marksman stock so you can see the configuration. As far as the Mcm A3, I dont know.
I have a link below that will show you some 52 configurations.
Regards,
DS