Primer Cup Popping Phenomenon.
Jun 4, 2021 20:30:12 GMT -5
Post by ET on Jun 4, 2021 20:30:12 GMT -5
All the years I’ve fired my 10ML-II I’ve never experienced this phenomenon.
Having time on my hands I thought I would research this to see what might appear.
First off, I thought I would acquaint myself with the construction of a 209 primer.
Okay we have a primer cup compress fitted into the primer battery cup. The first question that comes to mind is, do all primer manufacturers use the same amount or level of compression for fit?
Then there’s the bolt head with a serration (notch) cut out for the battery cup flange to fit into to hold the primer. Now when the shot is fired the primer body is pushed back against the bolt head. So, what if the carbon build-up impedes the battery cup flange from contacting the bolt head? We now have a gap for the primer cup movement.
Now I do clean my bolt head periodically with a pointed wire to scrap any impacted carbon and then stuff some of a patch into the serration and push it around in the serration with a small flat head screwdriver to pick up loose carbon. This was never intended to avoid primer popping but another purpose.
Anyway, I thought I would toss out my 2-cents worth of possible. Yeah I’m a cheap guy, chuckle.
Having time on my hands I thought I would research this to see what might appear.
First off, I thought I would acquaint myself with the construction of a 209 primer.
Okay we have a primer cup compress fitted into the primer battery cup. The first question that comes to mind is, do all primer manufacturers use the same amount or level of compression for fit?
Then there’s the bolt head with a serration (notch) cut out for the battery cup flange to fit into to hold the primer. Now when the shot is fired the primer body is pushed back against the bolt head. So, what if the carbon build-up impedes the battery cup flange from contacting the bolt head? We now have a gap for the primer cup movement.
Now I do clean my bolt head periodically with a pointed wire to scrap any impacted carbon and then stuff some of a patch into the serration and push it around in the serration with a small flat head screwdriver to pick up loose carbon. This was never intended to avoid primer popping but another purpose.
Anyway, I thought I would toss out my 2-cents worth of possible. Yeah I’m a cheap guy, chuckle.