Author Topic: 7" barrel for the Glock 40  (Read 239 times)

Overkill338

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7" barrel for the Glock 40
« on: October 29, 2017, 03:28:15 PM »
KKM is making a 7" tube for the G40. Would you be able to get 1400 fps out of a 200 grain?

The damn barrel looks like a golf club lol
The 10mm Auto, created by Zeus, replaced Thor's hammer, perfected by Jeff Cooper, and endorsed by Larry Vickers AND the Nuge! It exudes awesome! :D

Ridgerunner665

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Re: 7" barrel for the Glock 40
« Reply #1 on: October 29, 2017, 06:39:56 PM »
No.... Not with published data anyway.

I did get 1,365 fps using Hornady data and AA9 powder, but settled on a lighter load at 1,300 fps.... Easier on the gun, my wrists, and my ears.
« Last Edit: October 29, 2017, 06:44:03 PM by Ridgerunner665 »

Ridgerunner665

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Re: 7" barrel for the Glock 40
« Reply #2 on: October 29, 2017, 06:42:58 PM »


Overkill338

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Re: 7" barrel for the Glock 40
« Reply #3 on: October 29, 2017, 06:49:06 PM »
I am jealous!

By the way, I shared that info and your pic at Glock Forum, but I did credit them to you.
« Last Edit: October 29, 2017, 06:58:30 PM by Overkill338 »
The 10mm Auto, created by Zeus, replaced Thor's hammer, perfected by Jeff Cooper, and endorsed by Larry Vickers AND the Nuge! It exudes awesome! :D

Ridgerunner665

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Re: 7" barrel for the Glock 40
« Reply #4 on: October 30, 2017, 12:37:36 AM »
Which Glock Forum?

I'm a member of a couple and generally get in on 10mm discussions but haven't seen it anywhere.

Overkill338

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Re: 7" barrel for the Glock 40
« Reply #5 on: October 30, 2017, 05:40:12 AM »
Glockforum.com
The 10mm Auto, created by Zeus, replaced Thor's hammer, perfected by Jeff Cooper, and endorsed by Larry Vickers AND the Nuge! It exudes awesome! :D

Overkill338

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Re: 7" barrel for the Glock 40
« Reply #6 on: October 30, 2017, 06:47:30 AM »
Ridgerunner, I'm currently looking for an extended barrel for my Glock 29. KKM makes a 4.5" match barrel that fits the 29. Will your KKM barrel stabilize the Underwood 220gr Hardcast?
The 10mm Auto, created by Zeus, replaced Thor's hammer, perfected by Jeff Cooper, and endorsed by Larry Vickers AND the Nuge! It exudes awesome! :D

Ridgerunner665

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Re: 7" barrel for the Glock 40
« Reply #7 on: October 30, 2017, 07:52:42 AM »
Ridgerunner, I'm currently looking for an extended barrel for my Glock 29. KKM makes a 4.5" match barrel that fits the 29. Will your KKM barrel stabilize the Underwood 220gr Hardcast?
Haven't tried them... But I'm 110% certain it would.

The problem some have had with those type of bullets tumbling isn't caused by a lack of proper twist rate.

It is simply tolerance stacking... Factory Glock barrels are generally pretty loose, most factory cast loads use .401" bullets... That's not a good fit.

The KKM barrel is .400" on the money.

my_old_glock

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Re: 7" barrel for the Glock 40
« Reply #8 on: October 30, 2017, 09:52:17 AM »