30/30 ammo
You can buy ammo for your 30/30 wherever guns and ammo are sold. Depending on your intented use you have 3 bullet weights. .125gr, 150gr, and 170gr. I use the 125 and 150 (125 for deer and 150 for hog's). My favorite load is the win. 150 jhp, but really any of the loads will do fine in your marlin. If you reload and the marlin has their famous micro grove rifling, stay away from lead bullets as they will tumble. The old 30/30 will never die, mainly due to the handy rifles, but on paper the ballistics are not much in comparision to the newer rounds. However the 30/30 has and will continue to be a very good ctg. for deer/hogs/elk/moose. Limit your shots to a max of about 125/150 yds. and put the bullet in the sweet spot and it will do the job. If I were hunting for moose or elk or the larger bears I would probably get a larger caliber, but if I could only have the 30/30 I would use the heavier 170 gr. By the way, there is nothing wrong with the win. 94. They are good relaible guns, but I think you will be much happier with the marlins.