The M14 was never factory made as a semi-auto.
It is a semi auto PISTOL, not a revolver. Value depends on exact model and condition. Roughly $100-$350.
100-340
100-300
beats me...lol
50-150
$200
10-100 usd
50-150
value depends on overall condition and caliber............
Browning does not make a M70 semi auto 7mm nag
300-450 or so