9mm Major?

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DSeifrit
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9mm Major?

Post by DSeifrit » Sat Jan 11, 2020 5:44 pm

Just curious if anyone has experimented with or used 9mm major loads. I know it voids the warranty on most polymer guns, but don’t know if that is the case with the canik. Curious to know how it went if anyone has tried it because Atlanta Arms (near me) sells a 9mm major that’s a 147gr bullet that chronos at 1170 (damn near 172pf) that I’d be tempted to experiment with.
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LT USN (Ret.)
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Re: 9mm Major?

Post by LT USN (Ret.) » Sat Jan 11, 2020 5:52 pm

A question comes to mind; why?

In USPSA you would be hamstringing yourself. If it's just for the fun of it, I would be concerned about heat and pressure. But to answer the question, no, I have never gone about +P in my 9mm.

I'll willing to bet one of the hand-loaders here has gone that high.
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DSeifrit
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Re: 9mm Major?

Post by DSeifrit » Sat Jan 11, 2020 6:27 pm

My duty piece is .40 cal. Practice with a hotter load could benefit me in both the real world and competitive world. I plan on competing with the Atlanta arms load that is right at a 130pf, but I also don’t want to pump stuff through the gun that’s going to damage it.
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Westg
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Re: 9mm Major?

Post by Westg » Sat Jan 18, 2020 2:57 pm

9mm Major PF in USPSA puts you in open class. Unless you have the upgrades to your firearm take advantage you are just shooting yourself in the foot so to speak.
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BentAero
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Re: 9mm Major?

Post by BentAero » Sat Jan 18, 2020 10:46 pm

Westg wrote:
Sat Jan 18, 2020 2:57 pm
9mm Major PF in USPSA puts you in open class...
That's not entirely accurate. You could shoot Open, but you'd be at a huge disadvantage competing against custom race guns. Depending on your accessory choices, you could shoot Limited Major, but a polymer gun is going to have some pretty strong recoil with Major loads.

Slowing down enough to manage Major loads would likely negate any advantage the extra points that you'd get from your "C" hits. A well-tuned SFx minor setup with correct springs and 130 pf ammo is very manageable,which for most people would allow them a quicker and more accurate stage.

Bottom line: I'm not a fan of major loads in polymer pistols. Both you and the pistol are going to take a battering.
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45shooter
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Re: 9mm Major?

Post by 45shooter » Sun Jan 19, 2020 12:24 am

I sure agree with BentAero. I've never tried Major 9 in polymer pistols but I shot them in my STI which was rated for them and it just felt like it was really hammering the gun. I think the life of a polymer gun would be severely shortened.
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Westg
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Re: 9mm Major?

Post by Westg » Sun Jan 19, 2020 2:00 pm

Totally accurate, USPSA Competition Rules January 2019 APPENDIX D2 –Limited Division Minimum bullet caliber for Major.40 cal. / 10mm (0.40”)/ .357 SIG. Open is the only division where 9mm is allowed for Major.

USPSA Competition Rules January 2019 APPENDIX D1 –Open Division Minimum power factor for Major 165. Minimum power factor for Minor 125. Minimum bullet weight112 grains for major power factor. Minimum bullet caliber/cartridge case length.38 cal. / 9x19 mm(0.354” x 0.748”). Minimum bullet caliber for Major No

Like I said, If you don't have an open gun, don't try to shoot Major in 9mm you can't compete.
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