Whit, I know that the Garrett 330 grainers worked great when I used them on several occasions. Heavier than I prefer in that caliber but you can't deny they work! a 355 .429 would be long beast but not as bad as that 405 grainer!!

My all time favorite heavier weight 44 slug is the RCBS 300 SWC-GC. It is about 313-315 grains ready to shoot and runs about 1400+ from the 10" Ruger and is CRAZY accurate. I have killed a number of critters with that one. Not a big meplat that everyone wants these days but it has yet to fail me when I use it hunting. I think for a heavier weight 44, its tough to beat that one and the 300 WFN or LFN gas checked versions. I started hunting with the 44 with the 300 WFNGC. It was plenty accurate from the Rugers back then and hits like a train.