Misfires

[Patriot]

Went to the range to shoot my new Glock 29.

I shot 150 rounds of some of my 180 gr FMJ. Just standard stuff with Vihtavuori and Longshot powder. The powder is new, purchased within the last 3 years.

Out of the 150 I shot, I had 6 fail to fires. My primers are Winchester large pistol. I got them after my uncle died, some of the boxes could have been 15 years old. Maybe older.

I'm hoping that these primers were defective, and not an issue with my new Glock. They all had deep strike marks.

Can primers expire? I know at one point they were stored in a shed in my grandfather's backyard for about a year, not climate controlled.

[sqlbullet]

Deep primer strikes indicates the gun did it's job.  These are bad primers.

I know at one point they were stored in a shed in my grandfather's backyard for about a year, not climate controlled.

Yep...Heat is definitely the enemy of primer and powder.  They degrade and result in primers that don't go bang like they should.

[Patriot]

Deep primer strikes indicates the gun did it's job.  These are bad primers.

I know at one point they were stored in a shed in my grandfather's backyard for about a year, not climate controlled.

Yep...Heat is definitely the enemy of primer and powder.  They degrade and result in primers that don't go bang like they should.

Well that makes sense then. My grandfather lived in the Mojave desert in California. I'm sure those primers spent a whole summer in that shed at 110 degrees.