If you are interested in the heavier .444 bullets (or standard even lighter 250-300 grain bullets) for reloading.....I'd suggest Beartooth.
These are hard-cast (BN21) bullets with very wide noses and a variety of different sizes. One real key to getting accurate loads from the Micro-Groove Marlins is to order (or size) bullets to .432-.433" rather than the "standard" .430" most use. The Micro-Groove requires that the bullet MUST fill the grooves to obtain good accuracy.
With proper sized bullets (.432" for my rifle) from Beartooth, I get 1 1/2-1 3/4" groups consistantly. I shoot the Beartooth 325 Gr WLNGC and 330 Gr. LFNGC (prefer the 325) at 2150 fps. For me, the powder of choice is H335. With the Beartooth 355 Gr. WLNGC I get 2050 fps with RL-7 powder. All of these are excellent bullets for penetration and MUCH better than any jacketed 240-300 grain bullets I've tried.
