These are my very plain using loads.
.22 hornet
11gr WW296 all bullets

.223
25gr AA2015br or AA2200
50gr Vmax or 52 Speer

.30'06
57 thru 59gr H4350
165gr Horn., Nosler or Failsafe

.375 H&H
80gr RL15
300gr Swift or 300gr Sledgehammer

.458 win
65gr RL7
400gr X or 400gr Solid

.50 inline
100gr 777 (loose)
570gr Lee

Some others I have loaded for but don't anymore.
.25'06
100gr bullet and 54gr imr4831
7x57
140 w/48 imr4350
35 whelen Imp
250 w/59 4064
35 Rem
200cast w/ 30 3031

Thanks,
ED

Thanks for the information. You wouldn't, by chance, know of any good 444 Marlin loads with 300 gr. cast bullets. I've got some information from these pages (which has been helpful) but I'm always looking for more. Thanks in advance.
b

False Muzzle,
Here`s some I`ve used in my 444S:

Lee C430-310-RF
Alloy- WW/Lino Sized .430, Wt.297grs.
Reloader 7, 42.7grs
OAL- 2.500

Also, AA2015BR, 45.2grs
WC846, 50.0grs
H116(Bulk)"W680 Equivalent", 42.0grs

My rifle will tolerate a loaded maximum length of 2.515 and STILL extract reliably.
Start low, and work up as usual for safety.

Plain Ed

These look like some good loads, but are you really using 80 grains RL15 with a 300 gr .375? I've loaded a bunch of them and 70-72 grains is about max. we're 8-10 grains apart. Just wanted to make sure it wasn't a typo,as someone will surely pour the case full and shoot them without working up a load. Sounds more like RL19.