Re: Sabot residue cleaner
I'm going to take a guess on this..... if you're experiencing a "ring" or, anything you may believe may be similar, it isn't the sabot melting. Its your propellant, which upon making an assumption only, is Triple 7. T7 is known for creating the "dreaded crud ring". It is necessary to swab between each shot with one "spit patch" or, some soak them in Windex. Then dry with a couple patches, using both sides. Some T7 shooters reduce the load, which they claim reduces the crud ring.
I personally stayed away from T7 prior to the availability of BH209 and used Pyrodex. Since BH209 became available, its all I shoot. I shoot the heck out of mine and I have no problem with sabot build up. Back in the day, some shooters used to bring up the issue but, rarely is it brought up any more.
Sabots have changed significantly over the years, along with the different composites used in making them. I happen to shoot Barnes bullets, specifically the 250gr TMZ and have "0" concern with sabot build up.
If you feel the need, I'd probably suggest the shotgun wad plastic cleaner from Brownell's.