Comes down to whether or not you wish to hunt on a dirty, fouled barrel or not.

I am all about consistancy and expected results.

I have always swabbed completely clean in-between each shot when shooting sabot's. That is the point of impact that I am going to bank my one and only shot on. I have overall best consistancy POI from a clean bore.

For conical and PRB (Patch and Roundball) I also always sight in and hunt from a clean bore. When target shooting at the range with Conical or PRB I don't swab in-between each shot. Only when required by excessive fouling.

I'm sure folks will swear by a "fouling shot" or other methods to intentionallyfoul the bore to deliver good accuracy and I've heard in cases it will. For me I have always found the most consistancy from a clean bore and sight in that way for hunting situations.

Plus, sitting all day afield with a fouled bore gives rust an extra opportunity to work in the bore.

Lastly, fouling draws moisture which could contaminate your charge or ignition depending on the humidity level.

Good Luck!

Tahquamenon