I have wrestled with this delema for many years. And in the early years of steel shot I would say a "definitive No" But huge advances have been made in the production of steel shotshells in recent years. Mainly in the Shot Cup area. I decided to test my theory on a Remington 870 fixed full choke barrel made in the 70's. I micrometered the bore then fired three shots and mik'ed it again. No change and no bulges. Then I advanced to patterning it. This is where it went south, the pattern at 40yds was splotchy with many openings. You could say it was "blown" As for your gun, I won't advise you either way. But if you ask a gunsmith he'll tell you not to shoot steel through anything tighter than modified. And in the russian made Remington Spartans, they advise not shooting it through anything tighter than I/C.