Polite Answer: No.
Because the M14 uses a front clipping system, similar to the FN FAL and AK47. you have to place the front of the mag in first, and lever the back of the mag into the gun.
The Scar-H and SR25 series they use the STANAG style mag system- i.e. you just shove the fecker in!
OP, it is not a silly question, as some 7.62 mags ARE interchangeable (SR25 + Scar H, in my experience, depending on brand. VFC have some silly design). Let's be grown up guys.
Also worth pointing out you can modify an M14 mag to fit, by cutting two holes in the side so the mag catch will take it. But you have to get the mag to feed too...