Reloading 9mm and got some squib load need help

[skyline]

Good morning calguners I am going to mesure
20 rounds as suggested also I kept every single one of the cases that were fired that day I will post pictures of them all to see if any are deffernt to best fit a senerio
Just in case I did pick up the wrong case I did not fire to many since I got the second squib load I said enough for me tome to check what I did you can only roll the dice so many times before you crop out and boom goes the gun

Sent from my SM-N976V using Tapatalk

[USM0083]

Good morning calguners I am going to mesure
20 rounds as suggested also I kept every single one of the cases that were fired that day I will post pictures of them all to see if any are deffernt to best fit a senerio
Just in case I did pick up the wrong case I did not fire to many since I got the second squib load I said enough for me tome to check what I did you can only roll the dice so many times before you crop out and boom goes the gun

Sent from my SM-N976V using Tapatalk

You have to take into account the ogive also, not just overall length.

I load my rounds (X-treme 115gr plated and DG 115gr coated) to 1.10" OAL.

The DG bullets are shorter and fatter, and need to be seated to 1.10" OAL.

[skyline]

Here are the picks of the hornady recipe that I'm using
And I measured 2 bullets real quick before work

Sent from my SM-N976V using Tapatalk

[1911-CV]

Wow, those look like the rounder bullet style and loaded to more than 1.1 OAL. Does the bullet manufacturer provide a recommended OAL? I have some Bear Creek that are similar in shape. They recommend OAL of 1.08 (remember, OAL affects pressure, may also need to reduce powder).

The pictures support the idea that the bullets are getting stuck in the lands/grooves and the powder spills out when you eject to clear. Different guns will have different distances to the lands, so the longer round may work fine in some guns and not others.

The posted photos of the struck primers are the only piece of information provided that do not support this theory.

A good plunk test of a completed round in the barrel of the gun which suffered the squibs would confirm the theory.

[tabascoz28]

Round? I used to have one that was even rounded and I had to go 1.06 to work. Those reds are what I use now.

Anyone ask how the powder was dropped? Scoop by hand, case activated, drum, disk... Maybe it's a consistency thing.

[galun]

With 0.02” OAL difference in just two rounds, I think the problem is inconsistent seating leading to some rounds being loaded too long.

Yup, back up and need to ask about how you charge the powder, which is usually when the case is belled / expanded a little. Inconsistency here will lead to different neck tension. Too tight of a neck tension and you can get rounds seated too long.

Plunk those 20 rounds and you will probably find a few that won’t plunk. If that’s the case, then that’s likely your culprit.

Buy a 9mm case gauge and gauge every round, only shoot those that pass.

By the way, I don’t have the Hornady book, but the top of the page showed hollow point metal jacketed bullet, and you are loading a round nose coated bullet. Those are very different.

Read the thread linked below. People seat rounds for the Ruger PC9 to 1.09 OAL for round nose profile, and 1.12 OAL for hollow point. If you have inconsistent seating depth and up to 1.15 with just 2 round random sample, you are going to have some that’s too long. Those pictured cases are most likely not from these rounds.

https://www.thehighroad.org/index.php?threads/reload-for-ruger-pc-carbine-9mm.839951/

[sofbak]

Called it. Right here:

I'm going to postulate excessive COAL.
1. The round chambered and the bullet got jammed tight in the rifling.
2. Bolt did not close to battery due to excessive COAL.
3. When you pulled the trigger, the hammer hit low on the back of the bolt, but couldn't reach the firing pin because the bolt was not full-forward.

JMHO

With a .020" deviation in COAL for just the two rounds the OP measured and posted here, I have to wonder what's wrong with his seating technique. How does one produce that kind of variance via the pull of the press handle. Pay attention when you pull that handle I guess........And measure often (?).

Also note the Hornady load data posted by OP is for a different bullet style-i.e. a hollow point projectile.......

[skyline]

I am loading them with a dillion 650xl I never bothered measuring since the were passing in the case guage also make by dillon good thing I only loaded around 50 and shoot 10 looks I will have to do some re adjustments on my dillion thank you all for your great help

Sent from my SM-N976V using Tapatalk

[skyline]

Hornady manual page was for fmj round nose
Everyone I spoke with said data it is ok only deffernce it's going to be a little hotter round so I was told

Sent from my SM-N976V using Tapatalk

[sofbak]

^^^The photo of the hornady load data u posted clearly identifies the bullet as an HP-XTP. In layman's terms that is a Hollow Point-Extreme Penetration bullet.

NOT the round nose solid projectile you appear to be reloading.

Is the weight of your bullet (115 gr as u specified) the same as given for that hornady load data?

[skyline]

You are correct sir I will have to find info for the bayou bullets load data

Sent from my SM-N976V using Tapatalk

[Buymoreguns]

Also decap the dud cases carefully and see if the primer went off. You can clearly tell a spent primer all black vs primer that didn't go off. If primer went off, and powder is unburnt, something wrong with powder probably. If primer never went off, yeah follow all the advice here about overall length.

[sofbak]

You are correct sir I will have to find info for the bayou bullets load data

Sent from my SM-N976V using Tapatalk

Doubtful that the Bayou Bullets web page will give you any specific info. You should be consulting a Loading Manual or the powder mfg. data-as I have done on your behalf.

Looking at appropriate powder, caliber, bullets info there I found this on the Alliant web page:

9mm Luger Speer 115 gr CPRN Federal 1.135" coal 4" barrel CCI 500 Power Pistol 7.1gr 1,257fps

CPRN = Copper plated Round Nose.... as similar to the powder coated projectile you have as can be found.

You never specified your charge weight, so that won't be addressed here.

But note the COAL. The shortest you posted here was about right, and the longest you posted here was 20 thou longer. No telling what other cases COAL was-especially the two questionable units...... And if you were using a smaller charge weight, then the COAL can be reduced proportionally, as other posters here have indicated.

Your loads (some of them anyway) were too long for the chamber in your PC carbine.......

So, the moral of the story here is this:

1.Get GOOD data as close to your components as you can find-either in a manual, or the powder mfg website.
2.Pay attention to the details of your products as you produce them. Measure often!

hth

[Sandspider500]

Laser cast loads that bullet to 1.10 and western powder loads it to 1.07, I'm with sofbak and the others in thinking you're loading it to long in a gun that can't accommodate, also .020 difference between 2 random rounds is kinda sloppy. Someone asked if you plunk tested, but what would that matter if the difference in your loaded length is .020? If you look at your bullet you can see it has a full diameter bearing surface about halfway up the bullet, meaning a .356, it looks like you got that part hanging way out of the case, if you have a short throat, lead and or htc build up, stuck on the .346 lands. Also, is it just me or do those crimp marks on the bullet seem a bit crooked, which would amplify your problem. Try loading them shorter.



Can you see the line where the diameter changes?






Here's a similar style, notice where the ogive starts, and how much bullet would be in the case.

[skyline]

Thank you all for your great advise but I now have another question why would there be such a big difference in the bullets being seated at different depth
If it is a progressive press am I not using the same amount of force on each stroke does that matter

Sent from my SM-N976V using Tapatalk