from a Savage/Stevens Model 612 owners manual:
Steel shot is substantially harder than lead shot. They
are enclosed in a plastic wad to help protect the barrel
from scoring by the hard steel shot. However, when the
steel shot charge passes through the choke constriction
in the barrel, the barrel or screw-in choke may be damaged
if a tightly constricted choke is in place. For that
reason, we strongly recommend that a choke of no
greater constriction than Modified (III) be used when firing
steel shot. Use of an Improved Modified (II) or Full
(I) choke when firing steel shots will void your warranty.
reckon they know from where they speak?
