old ed, a general gunsmith with over 60 years of experience says this regarding pre ww2 12 gauge guns with fluid steel barrels:
generally, .030 or more 8 or 9 inches down from the muzzles should be safe....090 or more in front of the chambers should also be safe for light loads...shooting anything less than that is risky...and shooting heavy loads in old guns is also risky.
as this gun sounds like a 16 gauge, be very cautious and seek professional help...
another option is to have it fit with a pair of briley 28 ga full length tubes...then you would have a safe alnd fun 28 gauge shooter.
Last edited by ed good; 02/16/16 09:25 AM.
