I have a 9111 in 45 ACP that shoots reasonable well with the Lee 230 tc. Lube is carnuba red. Shooting it over 4.7 gr of HP 38. Does not lead one bit. Shoot 200 rounds, dry patch down the barrel, not a speck of lead.
Got a new Lee 200 swc mild for Christmas. Sized to the same .452, same lube, same powder charge. I get a ring of lead in front of the chamber.
I am using the same alloy, casting technique, etc for both. Bearing surfaces seems similar, both are a bevel base.
Any suggestions? The swc seems to want to shoot better than the tc but the leading is not helping any. Bullet is seated to max allowable by the chamber, dropped into barrel the head of the case is even with the end of the barrel hood.
It is colder here now and wondering if that has any affect on the situation. Have not shot the tc outdoors in 30 degree weather but I doubt the cold is causing this as carnuba red works fine for me in everything else even in cold weather.