Most gun owners end up with a shelf of half-used tins: a solvent for the bore, an oil for the action, something else for the stock. Ballistol was designed in 1904 for the German army precisely so one bottle could do all of it, and that is still how most shooters use it today.
Why it works on guns
Ballistol is slightly alkaline (around pH 8 to 8.5). Sweat, fingerprints and the residue from corrosive primers are acidic, so a thin film of Ballistol neutralises them instead of just sitting on top. That matters on blued steel, where a fingerprint left overnight can start pitting.
It also doesn't gum up. Many oils thicken and turn sticky over months as they oxidise. Ballistol stays thin, so a gun you oiled last season still cycles smoothly when you take it out in the cold.
Using it on each part of the gun
Bore
Wet a cleaning patch or felt with Ballistol and push it through from the breech end. Let it sit for a few minutes to soften carbon fouling, then follow with dry patches. For heavy copper or lead fouling, step up to Robla Solo MIL, then finish with Ballistol to protect the steel.
Action and moving parts
A single drop on the bolt lugs, trigger group, hinge pin or slide rails is enough. More oil doesn't mean more protection; it just collects grit. For parts under heavy load, such as locking lugs on a semi-auto, GunCer ceramic grease stays put better than any oil.
Exterior metal
Wipe the whole gun with an oiled cloth after handling it. This is the single habit that prevents most rust. On a wet shooting day, do it before you put the gun back in its slip.
Wooden stock and leather sling
A light wipe of Ballistol stops an oil-finished stock drying out and keeps a leather sling supple. For a deeper finish on a stock that has gone grey and dry, use Scherell stock oil.
How much to use
Less than you think. A small bottle lasts most stalkers a full season. Excess oil in the bore can throw your first shot off, so always run a dry patch through before shooting.
Before you shoot: always run a dry patch through the bore to remove excess oil. Never use oil on a gun while it is loaded.
Storage between seasons
Clean the gun fully, then coat the bore and all metal with a thin layer of Ballistol and leave it on. Store it out of a slip or case if possible, because foam and fabric hold moisture against the steel. Check it every couple of months, especially in a cabinet against an outside wall.
For a step-by-step cleaning routine, see how to clean a shotgun or rifle.
Pistols, CLP and dedicated gun oils
Ballistol is a CLP: it cleans, lubricates and protects in one. For self-loading pistols and rifles that shoot a lot, add a dedicated oil on the rails. See gun oil for semi-automatic pistols and CLP vs gun oil.