I tried 19gns of AP70 and that was still driving them too fast. I though I had a good load there for a while - I thought the first 4 shots went into a large ragged hole at 50 yards but the first shot went through normally (nice round hole) and the second must have gone through sideways right next to the first. Then the next two? Who knows? I thought the were hitting around the same spot.

(I couldn't tell at the range, since I only had a 7 power scope to use (on another rifle), but when I got home it didn't look like 4 holes right next to each other.)

The remaining 12 rounds that I fired after that were definately going astray, and they made an usual noise (a bit of echo - like firing next to a wall) as they zipped down range.

The bore was absolutely coated in lead - the worst affected area was a few inches in front of the throat. The bronze brush and solvent cleaned it out faster than last time though.

Trailboss is my last hope for these projectiles - velocity should be around 1000fps with a full load. If they still lead up I'll have to get rid of them - possibly melt them down for wheel weights

. I can't gas check them but maybe I could add extra lube? They are very hard judging by the lack of damage to the front of the ones that I had to knock back out of the barrel when they got stuck.