If you are in the Milwaukee area, Gun World (Lanon road off 41/45, Gander Mountain Firearms Center) has a pallet of 22LR. Yes, I said a pallet! The have 40g Federals in 325rd boxes for $17.99 or about 5c per round.
Same at Gander Mountain in Lake Park, Florida, not pallets, though. Had these behind the gun counter, at $17.99. It was the standard velocity / target / semi-automatic load. I thought it was a great bargain compared to what I pay for CCI standard / target rounds on a good day in times past. They said "no limit" but there were only 6 boxes, on the shelf. I bought 4. Going back today.
Model 41/46 and the High Standards Supermatic / Trophys are finicky. They don't like the high velocity loads but function very reliably with Standard Velocity / Target loads. This is the first time I noticed the box marked "Semi-Automatic Target".