I've been avoiding this mold forever since I've read a lot of bad about it, leading, tumbling, poor accuracy, etc. etc. Reports have been about 50/50. I recently put together a budget AR9 and discovered none of my boolit castings would chamber unless loaded way too short. As a matter of fact the only factory ammo I had that would chamber was the Remington 115 FMJ and they even contacted the lands. None of my factory 124's would even come close to chambering either. I took a chance on the this Lee mold and was quite pleased at the results. Though it had to be seated to an OAL of 1.075" to chamber, all went well. I didn't do any work-ups since I just wanted to see if they'd function the rifle and also make it to the target without tumbling, but the one each load using 4 different powders all functioned great. A few even resembled groups. Now to cast a few hundred more and do some proper ladder testing.