9mm Major squibs with full powder charges

[ErikW]

I shot a low round count match with ammo I loaded a few years ago: 124 JHP over 3N38 and Win SR primer. No problems. So it's not the gun.

 

[Jim Watson]

On 5/6/2024 at 10:02 AM, ErikW said:

Wolf SR 223 primer (same case of 5,000) but 124 JHP and HS-6 (mixed cases): no squibs

 

So bullet weight makes a difference? 

I would burn up the Wolf with 124s and good riddance.

[JonasAberg]

Is it possible the bottom of the case/primer pocket was clogged with mud?

On a handful of occasions after collecting brass after a rainy match, I've later found cases with mud at the bottom. I've always wondered what would happen if I actually loaded and fired those.

[OPENB]

I wet cleaned a batch of brass once, and did not get them completely dry before loading. I had the same experience you described. When I started pulling them apart, I found the contaminated round had clumped powder, some that was still wet. Check for water contamination.

[perttime]

I had the wet case situation once. With a revolver. It was just one round, and the bullet got stuck between cylinder and barrel. The primer went off but the case still had the wet powder in it.