Don't use any water-containing swabbing agent with BH 209. No stuff like T/C 13.... anything mixed with water. Don't drench the patch either. Use a gun solvent or synthetic CLP for swabbing/cleaning. Always follow-up that swab with both sides of a dry patch or two.

Don't expose the ML to vast temperature changes when loaded. Lastly, fire three primers prior to installing your hunting load and make sure that load going down the bore is not a loose fit.

.... and watch out for the #2 God listed below....