Oil-CLPs, cleaning products, barrels-firing pin areas...
There is some good input here already but I'll add my remarks too:
I'd avoid using large amounts of gun oil, CLP, Hoppes #9/Butchs/Birchwood-Casey etc inside the firearm barrel or the weapon's firing pin area.
Modern firearms & advanced ammunition designs have improved but I & many other gun owners/gunsmiths/shooting industry experts warn against oil/gunk/CLP fluid etc seeping into the round's case or build up or clog a firearm's action.
A light or small amount of a high quality CLP or barrel cleaner(Mpro7's LPX, Eezox, Weaponshield, Ballistol, Hoppes #9 etc) is okay but too much can damage the rounds or cause jams/misfires.
Clyde
There is some good input here already but I'll add my remarks too:
I'd avoid using large amounts of gun oil, CLP, Hoppes #9/Butchs/Birchwood-Casey etc inside the firearm barrel or the weapon's firing pin area.
Modern firearms & advanced ammunition designs have improved but I & many other gun owners/gunsmiths/shooting industry experts warn against oil/gunk/CLP fluid etc seeping into the round's case or build up or clog a firearm's action.
A light or small amount of a high quality CLP or barrel cleaner(Mpro7's LPX, Eezox, Weaponshield, Ballistol, Hoppes #9 etc) is okay but too much can damage the rounds or cause jams/misfires.
Clyde