My brother-in-law just won a 450 marlin guide gun at a bash. I am looking for reloading data for a 350 gr flatnose. I can only find the hodgdon online info so far,and it only lists h powders. I guess that any powder suited for the heavier bullets in a 444 marlin or a 45-70 would work, but I don't know about the starting charge weights. Help.

Chad,
Grab a hornady book for this one, or at least talk to a friend about it. Hodgedon was the only source for loads, for awhile.

imr load
http://www.imrpowder.com/rifle/new011402/450mar_3_data.html

the 350 is the right choice, as the 300 are meant for LOW 45/70 velocities.

Jeffe

[ 04-13-2003, 16:54: Message edited by: jeffeosso ]

Chadr,

Great cartridge, although I don't have a Guide Gun I do have two .450 Marlin's. One is a Ruger No.1 and the other is a Win. M70. Here are the loads I got from Hornady when I was building my No.1;

Loads For Marlin Guide Gun

Powder Velocity Bullet
51.0 H4198 2,253 Barnes 250 gr. XFN
57.0C H4198 2,509
56.0 H322 2,160 Nosler 300 gr. Partition
48.0 H4198 2,116
59.0C H322 2,289 Nosler 300 gr. Partition
53.0 H4198 2,321
56.0 Benchmark 2,004 Hornady 350 gr. JFP
56.0 H322 2,043
43.0 H4198 1,939
59.0C Benchmark 2,129 Hornady 350 gr. JFP
58.0C H322 2,196
48.5 H4198 2,119

Yours if you want them, I use round nose and spitzer type bullets. Lawdog