10MM Squib/Barrel slugging

[4jorgies]

Hello, I have a Glock 40 MOS in 10MM.

Right after o picked it up I installed a Lonewolf barrel, stainless steel guide rod and a 22# recoil spring. The guns intended use is woods carry using 220 grain hard cast bullets shoving them at 1250fps

While working up the load I experienced a squib. There was no damage because o caught it, dropped the mag and removed the round that chambered right after the squib.

Removing the squib took a lot of effort but I was able to get it out of the barrel without damaging the bullet or barrel. I had been thinking about slugging my barrel and thought I had just got lucky enough to have done that.

The bullet actually measures .394 after removing it from the barrel.

While working up the load my biggest issue was failure to feed and sever pressure issues in the range of the powder charge that someone else used to get to the desired velocity with the same bullet.

I only achieved the desired results when I removed the decapping in from my sizing die and ran the finished rounds throug it.

I have found that doing this is resizing the bullet to .396 from .401 leaving a very small portion of the bullet at .401.

I have a couple of directions I'm thinking about going.

1) remove the aftermarket barrel and use the stock one that came with it.

2) see if I can get custom sized bullets for it. Or resize them myself but this requires a significant investment in tools and time.

3) start casting my own. Same issue as above

4) continue my process as is but I'm not sure this is a good idea

Thoughts???

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[CodySPowell]

Hello, I have a Glock 40 MOS in 10MM.

Right after o picked it up I installed a Lonewolf barrel, stainless steel guide rod and a 22# recoil spring. The guns intended use is woods carry using 220 grain hard cast bullets shoving them at 1250fps

While working up the load I experienced a squib. There was no damage because o caught it, dropped the mag and removed the round that chambered right after the squib.

Removing the squib took a lot of effort but I was able to get it out of the barrel without damaging the bullet or barrel. I had been thinking about slugging my barrel and thought I had just got lucky enough to have done that.

The bullet actually measures .394 after removing it from the barrel.

While working up the load my biggest issue was failure to feed and sever pressure issues in the range of the powder charge that someone else used to get to the desired velocity with the same bullet.

I only achieved the desired results when I removed the decapping in from my sizing die and ran the finished rounds throug it.

I have found that doing this is resizing the bullet to .396 from .401 leaving a very small portion of the bullet at .401.

I have a couple of directions I'm thinking about going.

1) remove the aftermarket barrel and use the stock one that came with it.

2) see if I can get custom sized bullets for it. Or resize them myself but this requires a significant investment in tools and time.

3) start casting my own. Same issue as above

4) continue my process as is but I'm not sure this is a good idea

Thoughts???

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Did you do a plunk test with the new barrel?

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[4jorgies]

Did you do a plunk test with the new barrel?

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I did. The only time I was able to get them to consistently pass was after full length sizing the loaded round.

They all passed in the factory barrel.

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[CodySPowell]

I did. The only time I was able to get them to consistently pass was after full length sizing the loaded round.

They all passed in the factory barrel.

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206 226 8664, give Wes a call. He'll get you squared away.

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[SAWMAN]

Wondering how long that LW bbl is ?? That 220gr @ 1250 seems a little hot to me.
I have a Glock OEM 6" hunting bbl for my Glock 20 and I am getting 1320 from a 200gr WFNGC.
.394" is severely undersized. What does LW have to say ?? --- SAWMAN

[4jorgies]

Wondering how long that LW bbl is ?? That 220gr @ 1250 seems a little hot to me.
I have a Glock OEM 6" hunting bbl for my Glock 20 and I am getting 1320 from a 200gr WFNGC.
.394" is severely undersized. What does LW have to say ?? --- SAWMAN

The barrel is 6"

The 1250fps is either a typo or auto correct I missed, they are actually 1200FPS but you are right they are hot.

I'm going to get some soft lead and slug the barrel to get a better idea on actuall size before contacting LW

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[CodySPowell]

The barrel is 6"

The 1250fps is either a typo or auto correct I missed, they are actually 1200FPS but you are right they are hot.

I'm going to get some soft lead and slug the barrel to get a better idea on actuall size before contacting LW

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Did you call Wes? The problem isn't the barrel.

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[4jorgies]

Did you call Wes? The problem isn't the barrel.

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Yes I did. He was very helpful.

What I thought was a factory crimp die, is not.

Also picking up an actual Factory Crimp Die

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[CodySPowell]

Yes I did. He was very helpful.

What I thought was a factory crimp die, is not.

Also picking up an actual Factory Crimp Die

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Perfect! I was going to recommend that. [emoji106][emoji846]

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[4jorgies]

Perfect! I was going to recommend that. [emoji106][emoji846]

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Every day is a learning experience. That is the beauty of reloading. Always something to learn.

I got started reloading by a retiring electrition giving me all of his equipment because he was moving into an RV.

What I thought was a 40/10MM factory crimp die was nothing more than a seating die with the seating plug removed.

That explains why I did not see what the benifet of the factory crimp die was.



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