Magnum Primers For the Win!
Sabotloader. I worked on the channel with denuded Qtip until it came out clean. I tried blowing a lubed patch off of the muzzle using the #11 caps (no powder, just a cap). It flew up a couple inches.
I went to Sycamore Island (New Albany, IN) and bought 1 tin of CCI Magnum #11s. At the range (Knob Creek, Westpoint, KY), I fired 8 consecutive shots, 1 fouler, and 7 on target at 50 yards (Hornady Great Plains over 100 grains Goex FF with a Magnum #11 primer). There were no misfires.
I will return to Sycamore Island (the store that had the Magnum #11s) and buy the rest they had (4-5 tins).
Thanks for all the input.