358156 hp
At large, whereabouts unknown.
I hesitate to say this out loud, but I once bought a used 686 that had horrendous cylinder fouling at the the 38 Special line. The bore was magnificently leaded as well (another story). After a week of clean/soak cycles I scrounged up an orphan 357 max case and flared it excessively until it had to be pressed into the 686 chambers with some effort. Then I tapped it down with a light brass hammer until the case wouldn't go any further, then I knocked it back out with my trusty brass rod. Much of the fouling came out, and the rest cleaned up pretty quickly.
I had to reflare the case a few times to get all the chambers clean, but it did work. Most of the fouling turned out to be one of those unfortunate combinations of lead, bullet lube, and carbon. I would still be trying to clean it out if I hadn't cheated. My guess is that the gun had only been fired with 38 Spl, probably hot loads with swaged bullets and the bullets riveted at the bases as they entered the throats.
Shortly there after, I purchased an Outers Foul-Out.
I had to reflare the case a few times to get all the chambers clean, but it did work. Most of the fouling turned out to be one of those unfortunate combinations of lead, bullet lube, and carbon. I would still be trying to clean it out if I hadn't cheated. My guess is that the gun had only been fired with 38 Spl, probably hot loads with swaged bullets and the bullets riveted at the bases as they entered the throats.
Shortly there after, I purchased an Outers Foul-Out.