Safety Rules Related to Ammunition
http://darkwing.uoregon.edu/~joe/firearms-safety.html
Be sure your gun and ammunition are compatible. Shooting incorrect
ammunition in a firearm may cause it to be damaged or even make it blow
up.
Relying on ammunition which doesn't feed reliably in your particular
firearm may make your firearm malfunction at a critical juncture: get
experience with a particular lot of ammunition in your firearm before
relying on it for defensive purposes.
Use only ammunition recommended for your firearm by its manufacturer.
Never fire ammunition which exceeds industry standard pressure specifications.
Over-pressure ammunition will reduce the service life of your handgun,
and puts you and those around you at risk of a catastrophic firearm
failure.
Use reloaded ammunition judiciously. Be aware that many firearms manufacturers
specifically forbid the use of reloaded ammunition in their products,
and will void their product's warranty if you elect to use reloaded
ammunition in contravention of their instructions.
Also remember that a cartridge which has: the wrong powder, no powder
charge, or too large a powder charge; an inverted primer, mis-seated
primer, the wrong type of primer or an inert primer; a mis-seated, inverted,
or mis-sized bullet; a collapsed, weakened, improperly sized or mis-crimped
case; incorrect overall length or any of a host of other defects may
seriously jeopardize your safety, the safety of those around you, and/or
the reliability of your firearm in a defensive situation.
Many shooters prepare and safely use reloaded ammunition each day, and
it can be an economical way to stretch your ammunition budget, but the
safety of that reloaded ammunition directly depends on the care, components,
equipment, and practices used in preparing it.
Carry only one caliber of ammunition when shooting. Accidentally grabbing
the wrong ammunition while shooting can result in a shooter or third
party being injured, or damage or destruction of a firearm.
Insure you carry sufficient spare ammunition for your defensive firearm,
and make sure you carry it in a readily employable fashion (such as
in spare magazines or in speedloaders).
Store ammunition that isn't being used under lock and key, inaccessible
to unauthorized parties and children.
Dispose of unwanted ammunition safely.