Over the last two years I have been working with a steady progression of molds for the 444 Marlin .
Mine have come from a variety of sources . Lyman , RCBS , Lee , Ranch Dog and NEI .
My latest trials have been with the Lyman 429649 and the NEI 429-330GC . Although I've had good luck with them in my 444P using air cooled WW's . I've not had good luck with them in my slow twist micro grooved 444's . But I have since cast about 150 of each design and water quenched them for trials in the micro barrels .
So provided I get these two to perform adequately my next step will be 350 grains followed hopefully by 375 and finally 400 .
I was actually until recently happy to stop at 350 grains but after talking with Olle Boqvist on Marlinowners he has me intrested in possibly going all the way to 400 grains in the 444 Marlin .
He also told me about the 350 and 400 grain molds he had made here at Mountain Molds and gave his consent for me to use his design.
Would it be possible for you to post both his 350 and 400 grain bullets here for a look see ?