I stopped by to look at a .375 carbine built by a friend, a serious working rifle in synthetic stock and low power illuminated dot scope. He said the shelves of a local gun store were full of ammunition, so we went over for a look. There was quite a lot, including .22 LR ( gads, the price, $5.99 USD a box of 50).
Went to another store, and they had a good assortment of powder, so I got some W-748. They had W-760, H-414, H-335, H-380, H-4831, VV N-150 and N-160, some IMR-7828 and 4350, RL-19 and RL-22.
Selection of bullets is slim, especially anything not a large seller, like .375 in 235 gr, or .257.