I'm not certain you understand the "corrosive " thing. Up until the 1990s, All military spec ammo was considered to be corrosive, there are almost no exceptions to this. Any ammunition in this caliber that is newer than 1990 and is non-corrosive is most certainly going to be commercial made ammunition at a premium price. Your choices will likely be S&B, PRVI, Wolf, LVE, and MFS. These bullets are more in demand for soft points, which are NON standard military ball loadings. Most of these makes can be ordered in FMJ but its more about a marketing issue than actual availability. For example, Why would anyone want to purchase target loads at 2 and 3 times the cost of readily available surplus loads? If you were a store, you would not get near the return on your inventory by competing with ammunition of half the cost or less. There maybe perhaps a few individuals that would prefer commercial match loads, but the really serious shooters make home-loads.
I'm sure some places will special order the stuff for you, but its much cheaper and less effort to simply learn how the clean your rifle.
