"SQLit" wrote in message
...

Most of the 22 varity were called low velocity when they were sold.
Meaning
the power moves a rod that actually hits the "pin". There were some high
velocity guns made in the .22 caliber.
Pins and loads can be acquired in a lot of places. like any ammo the stuff
is not good forever.
I have some 3-5 year old yellow loads that I used recently. 30% of the
box
were duds.


I can't say how long the stud gun loads last, but regular gun ammo is good
almost forever if stored in a place that does not get too hot. I have some
reloads I made myself that are over 30 years old and some comercial shotgun
shells that are 40 years old and it is just as good today as it was when
first made. Even the military stuff left from WW2 is still good.
The stud gun loads may not last because they seem to be open and just
crimped in the end instead of being almost air tight.