Quite a variety of Ammunition - Buffalo Bore offerings:

[AJMD429]

.
Here's their online catalog - PDF - https://buffalobore.net/2025RETAILProductPriceList.pdf

Who'da'thunk - 444 Marlin and 35 Remington and 32-20 and many other 'semi-obsolete' offerings....

[Drawdown]

Believe him and his products to be quality! Gotta admire a man that test his own ammo in his own guns, and not sure of all the ammo, but the 30-30 in particular. Tested in no less than 5 different rifles and he post the results. I got one box of his 357 ammo way back when first heard of him, and a box of 255gr Hardcast for 45acp just few years back. Shot 4 rds of a 20rd box just to check cycle and accuracy. Loaded the other 16 into two 8rd mags which I keep one in pistol and one on the ready when roaming these mountains, black bear everywhere.
I sure thought of trying his 30-30 Heavy with the 190g Hawk, but I reloaded my own with the 190gr Barnes instead. He has an outstanding selection, and he's plenty experienced apparently of what is of best need!