I live in a semi-arid part of the country (just a bit north of Texas), so not much humidity, but very hot temps in the summer. I do have to wipe the pistol down often, and I use fine steel wool to clean up any rust that does take hold. For ammo, I like 124 gr +P, jacketed hollow points from Remington or Speer.
Give G96 spray a try. Shell Roteilla 0W40 pure synthetic diesel oil on the high wear points. No rust, good in dust and will work in -50 celcius as well (have proved the sub 50 part as well as the dust). Rust won't be an issue anymore either.


















































