I've collected a lot of old ammo, generally from deceased estates. I identify it the best I can and label it in separate containers and it's started taking up way to much shelf space for what it is, so I've been burning it off in pistol practice. Yesterday I shot Rapid Fire, Standard Pistol and Air Pistol matches, but also did some practicing.
I've rarely had any trouble with the old ammo I've been shooting, but on Wednesday in a Standard match I was a few rounds short so I grabbed some out of a box of old ICI just to finish the match. The first round blew the case head off the case, leaving the shell in the chamber. As I didn't have a rod and brush with me I finished the match five rounds short.
So I decided to clear some of these old boxes out yesterday. I had 17rds of this old "I" head stamp ICI stuff left. Out of the 18rds, 13 blew the case head completely off, and two more blew the case head apart but it was still attached to the case. If I had fired this stuff in a pistol with an extractor I'm sure I would be hunting for a new extractor for it. It dumped the gas out the sides under the slide, impregnating the residue into the skin of my finger, but there wasn't any heat or pain. The FAS 602 is very easy to remove the barrel though so I just pulled it each time and pushed a bronze brush through to remove the cases. Two of the case heads landed on the bench beside me, the others I found on the ground behind me, so they probably went over my head. I didn't get any debris back into my face but I probably wouldn't want to be standing close beside me when I was shooting these (I was on my own at the club).
I thought I'd post it just as an advisory of what _might_ happen shooting old ammo. This lot came from a deceased estate that a mate picked up last year. There was a decent amount of more modern (1990's probably) .22LR ammo still in bricks and boxes that he wanted, but the 300+ 12ga shells and the hundreds of loose .22LR rounds in the bottom of the box he passed on to me.
I also shot a bunch of old Remington Yellow Jackets, 42gn Winchester Powerpoints, 40gn Superspeed HP, a few unidentified 40gn RN CCI, and what looked like old Remington Cyclones but with less recoil (probably just lost power due to age) all of which shot very well. Winchester RN Longs shot fine but won't cycle the action.
I notice Remington is now also selling the 1500fps 33gn Yellow Jacket bullet at 740fps, calling it the C-Bee22. I liked the Yellow Jacket when I was a kid but it lacked some accuracy, so I wouldn't mind trying the CBee22 - anybody seen it in Oz?
https://www.remington.com/rimfire/29-21119.html




