SIG SAUER P250 - Manual (Page 16)

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6. if there is any reason to suspect that a bullet is obstructing the barrel, immediately unload
the firearm and look through the bore. it is not sufficient to merely look in the chamber.
a bullet may be lodged some distance down the barrel where it cannot easily be seen.
waRning – lodged bullet
if a BulleT iS in THe Bore, do noT aTTeMPT To SHooT iT ouT By uSing anoTHer
carTridge or By BloWing iT ouT WiTH a BlanK or one froM WHicH THe BulleT HaS
Been reMoVed. SucH TecHniQueS can generaTe eXceSSiVe PreSSure, daMage THe
firearM, and cauSe SeriouS PerSonal inJury.
if the bullet can be removed with a cleaning rod, clean any unburned powder grains from the
bore, chamber, and mechanism before resuming shooting. if the bullet cannot be dislodged by
tapping it with a cleaning rod, send the firearm to Sig Sauer.
7. dirt, corrosion, or other foreign matter on a cartridge can impede complete chambering
and may cause the cartridge case to burst upon firing. The same is true of cartridges that are
damaged or deformed.
8. do not oil cartridges, and be sure to wipe the chamber clean of any oil or preservative
before commencing to shoot. oil interferes with the friction between cartridge case and
chamber wall that is necessary for safe functioning, and subjects the firearm to stress similar
to that imposed by excessive pressure.
9. use lubricants sparingly on the moving parts of your firearm. avoid excessive spraying of
any aerosol gun care product, especially where it may get on ammunition. all lubricants and
aerosol spray lubricants, in particular, can penetrate cartridge primers and cause misfires.
Some highly penetrative lubricants can also migrate inside cartridge cases and cause
deterioration of the propellant powder; on firing, the powder may not ignite. if only the primer
ignites, there is danger that the bullet may become lodged in the barrel.