Only load information is for a 57gr lead bullet....748 17-19 grs, blc2 13-15, green dot 7.2-8.6,700X 5.5-7.5,and unique 7.5-8.5 using win cases, cci400 use 450 with 48 and blc2 powders....... As with all information work up loads information came out of RCBS Cast Bullet Manual#1 questions send a private message.........Nomad.....
I would check over @ http://www.loadswap.com Beartooth bullets makes lead .223 bullets and I bet the guys over there would some data for you.You are planning on using in your bolt gun and not an AR?
I hear bad juju in a semi but maybe others with more experience will chime in.Unless you have a specific reason to use them in your 14 I think I would pass.
I shoot cast bullets in AR's in .223, 6.5 Grendel, and 7.62 x 39. No problem with gas tubes. Lots of people have been shooting cast for years in AR's, AK's, M1 Garands, you name it.http://castboolits.gunloads.com/forumdisplay.php?f=8