That load in a clean dry bore should not be a problem Powerstroke. What you have to be careful of is rapid temperature changes when moving a gun from cold outdoors to warm house (or vice versa) causing condensation in the bore. Run a patch down the bore with your cleaning jag. If you don't get any sign of surface rust or moisture you should be good to go. Good safety practices are in order of course - no primer, no leaning over the bore, only fingers exposed, etc. If the patch comes out a little brown, I would pull the charge.