Thanks for getting frostbite to get this little test done Ron.
My first inline was a Winchester 150 bolt gun when the gun was first available and it was primer fired. Back then I shot T7 granular. That gun would shoot super on the clean barrel with a sabot and bullet, but a follow up shot without a quick wipe was something of another nature. The bullet and sabot came from Canada and was sold here at Cabelas, 180 grain lead spitzer shaped bullet. Uncanny accuracy as long as one accepted the need to wipe the pipe after each shot. A buddy at that time was handloading a .45 cal revolver and was using a 225-240 grain bullet with a half jacket and exposed lead semi-flat point and I talked him out of a couple just to see how they fit this gun's bore and they fit with what was about a perfect imprint of the lands and went thru the barrel about as hard as the sabot/ bullet so I tried those two with some wadding and a slightly cooler charge of the T7. At the same target I'd shot the saboted bullet this solo bullet hit two inches higher. I was impressed, until I forgot to wipe the barrel when I tried the other bullet. That's when I was faced with Ron's and Rob's experience. Wood dowel at home with a hammer from the breech end finally removed the stuck bullet.
Now back then I simply assumed that the powder was dirty enough to hinder a second load and was partially correct as right from the very muzzle a second shot would begin to balk. Primers at that time were sold in the reloading department. Period. None of today's weak tit 209 stuff back then. And my assumption back then with the second bore fit bullet was that the copper jacket was harder than the sabot plastic which I could actually get forced to the powder with the ram rod for a second shot if needed.
Today I shoot the same T7 at the range but use the slightly cleaner burning [for me at least] fffg granulation. Won't touch a pellet. I have just accepted the need to wipe between shots and honestly shoot the exact charge that I do in each gun that uses BH209 in the hunting realm. I get identical results on the paper and on a deer. I've also decided that a sabot/bullet combo shoots best in my guns and have settled on that. Another conclusion is that it's not so much a primer problem, because I still get the crud ring using any of the muzzleloading primers of the many I have tried. I still have some black and Pyro that I mess with just to burn it up and when everything is the same except for the powder, and I keep coming back to seeing it's the T7 as the only headache handing powder I have shot. I have plenty of the Winchester reloading primers as well as a steady source for Cheddites to ignite my BH209 powder during the deer season and since I know the Winchesters do well in really cold weather with the 209 powder, I reserve them for that purpose.
There are plenty of other powders out there I could try but T7 is as far backwards as I am going to go from BH209. My fussing with stuff has ended. I am happy with what I shoot and happy with the components and darned happy with the field results. Now.... if this wind will quit for a morning I plan to try my hand at smokeless. I have three powders all weighed out and a couple bullet choices. I'll be shooting sabots. I'll be shooting a Woodman Patriot with a McGowan 1:17 24" barrel. Lighter loads to start. More to come on this adventure when the wind decides that Canada needs a decent blow as that will work well for the club I shoot.
. So, it appears they are Equivalent to the CCI209M Magnum Primers 
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