Lyman 429650 or RCBS 44-300

[Flintlock54]

How do the perform out of a Marlin .44 mag, and your preferred load thank . Kevin

[Tatume]

Some people get good accuracy with 300 grain bullets and some don't. The only way to know for sure is to try them yourself. If you haven't already bought the molds, you might want to consider a 250 - 265 grain design. Also, I prefer the LBT LFN style of bullets over SWC, but they both work. For load data I prefer 2400 with cast bullets. Alliant has dependable data on their web site. They take the 250 grain Keith bullet up to 1390 fps with 2400.

http://www.alliantpowder.com/reloaders/powderlist.aspx?page=/reloaders/powderlist.aspx&type=1&powderid=9&cartridge=33