10mm-Auto

10mm Ammuntion => Factory 10mm ammo => Topic started by: Intercooler on November 21 2012 04:40:48 PM MST

Title: GAS Ammo maybe isn't 180gr?
Post by: Intercooler on November 21 2012 04:40:48 PM MST
    I contacted them about what was found. It appears they had a 200gr XTP bullet loaded on there. It's highly unlikely I mixed it up with any other 200gr XTP because basically I only had one other box and the charge was 7.8gr's. WTH!
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: REDLINE on November 21 2012 04:50:27 PM MST
Is this a load The_Shadow is disecting?
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: Intercooler on November 21 2012 05:17:31 PM MST
Yea. He tore it down and found a 200 XTP bullet. I then weighed what I have here and got 284gr's total.
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: REDLINE on November 21 2012 05:23:51 PM MST
What name is The_Shadow refering to the GAS ammo load as?
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: The_Shadow on November 21 2012 05:27:33 PM MST
Cartridge is from Ammo Manufacture: Greenville Ammo Supply 180 Bonded Match HP (wrong weight)
Ballistics Information: 10mm Auto
Muzzle Velocity: 1200 fps
Muzzle Energy: 575 ft. lbs
Pictures: Before/After disassembly:
Brass Make/Headstamp: Star Line - Brass
Bullet Make/Weight/Construction/Info; Length 0.6780"/Dia. 0.400": Hornady 200gr. XTP actual weight 199.8. grains
C.O.A.L.: 1.2485"
Case: Diameter 0.4215" Crimp Diameter 0.4175" Length 0.9875" crimp heavy
Primer: Brass color
Powder Description/Positive ID/Type/Charge Weight: Power Pistol 7.8 grains
tested 11/29/2012 GAS-Greenville Ammo Supply 200 Gr. Hornady 1059 fps : Diameter 0.4270"  primer good OK
(http://i1086.photobucket.com/albums/j441/_The_Shadow/IMG_0143.jpg)
(http://i1086.photobucket.com/albums/j441/_The_Shadow/IMG_0196.jpg)
(http://i1086.photobucket.com/albums/j441/_The_Shadow/IMG_0198.jpg)
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: REDLINE on November 21 2012 05:34:06 PM MST
Got it.  I was thinking it was a different one already posted elsewhere.
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: Intercooler on November 21 2012 05:50:19 PM MST
Was it 7.6 or 7.8? Scale shows 7.6
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: The_Shadow on November 21 2012 06:01:06 PM MST
It was 7.8...The other picture the scale drifted before the picture was snapped.  Picture was replaced to reflect the weight.
When pasting into the post here all the punctuations have to be correct to the fonts of this forum or things will not post. 
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: Intercooler on November 21 2012 06:06:55 PM MST
https://docs.google.com/spreadsheet/ccc?key=0Ak5OC6bPsjO8dEh6eGZ3N3hpUU13SXM5cm9pZy16T0E#gid=0

I scanned over that sheet and THE ONLY other 200gr I ever tested other than the recent PBR's was Kevin's. We know it isn't those so GAS Ammo has some explaining to do!

So 200gr with that charge look about right?
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: Yondering on November 21 2012 06:21:05 PM MST
Quote from: Intercooler on November 21 2012 06:06:55 PM MST
So 200gr with that charge look about right?

Without knowing for sure what the powder is, you don't know. It looks similar to Power Pistol, but could be others.
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: The_Shadow on November 21 2012 06:42:48 PM MST
Yondering, This one I have NO Doubts and I'm positive it is Power Pistol because of side by side comparison & I load and shoot 8.0 grains under the hornady 200 XTP, 1180-1200 fps from the S&W 1006 5" barrel.  ;D
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: Intercooler on November 21 2012 07:07:38 PM MST
I got an average of 1143. Sound right? I went back and changed the sheet to 200gr's. Hopefully I get a GAS Ammo reply soon or I will call  :D
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: Intercooler on November 22 2012 04:15:02 PM MST
Well they get their ammo from a maker. They were shocked and offered to replace it but I see no point.
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: The_Shadow on November 22 2012 05:12:19 PM MST
That explains the lower velocity...heavy hitter! You were looking to get results for 180gr. when the bullets were actually 200gr.  You would not have known any difference, had we not taken it apart to see what was inside!  Live and learn!  ;D
I'm still hoping to get someone to post more powder pictures for the Winchester powders to help ID the UW 9mm offering!
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: REDLINE on November 22 2012 06:56:33 PM MST
That is difficult to swallow.  It is what it is though.  Still, the miscommunication or whatever...wow.
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: Intercooler on November 22 2012 09:08:41 PM MST
Here is the picture the day I got the box. Same baby but I guess the 200's are better to have anyway.

Can you ID that XTP in the picture?

(http://sphotos-b.xx.fbcdn.net/hphotos-ash3/552762_419758588062179_1156628671_n.jpg)
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: The_Shadow on November 22 2012 09:22:30 PM MST
Sure looks like it, the one I pulled I placed right next to a brand new out of the box Hornady 200XTP. The measured the length of GAS bullet, then without adjusting the calipers the Hornady slid snuggly between the blades @ 0.6780" although some of the 200XTP's go 0.6800".
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: Intercooler on November 25 2012 10:33:10 AM MST
I think in this case I did better having the 200 XTP's yes?
Title: Re: GAS Ammo maybe isn't 180gr?
Post by: REDLINE on November 25 2012 11:05:34 AM MST
From what sense?

Now knowing the 200gr bullet was used certainly does make the velocities you achieved make more sense.