Cartridge is from Ammo Manufacture: Ted Nugent Ammo 180 JHP 2/19/2015 (supplied by Kevin)
Ballistics Information: 10mm Auto (Lot # 7603)
Muzzle Velocity: 1235 fps
Muzzle Energy: 610 ft. lbs
Brass Make/Headstamp: Nugent - Brass
Bullet Make/Weight/Construction/Info; Length 0.6220"/Dia.0.4000": Sierra? 180gr. JHP
HP Depth 0.1700" / HP Dia. 0.1250" tapered / Mouth 0.2200"
Actual weight 180.0 grains / crimp line 0.4000"
C.O.A.L.: 1.2545"
Case: Diameter 0.4210" Crimp Diameter 0.4215" Length 0.9875"
Primer: Large Pistol Nickel color
Powder Description/Positive ID/Type/Charge Weight: Winchester Auto Comp 8.8 grains
Testing March 14th, 2015 (Ted Nugent 180 gr JHP Lot #7603 advertised 1235 fps Test Velocity 1215 fps)

Good work, apologize for the delay getting this to you. 

No problem, and many thanks for allowing us the documentations!

 They switched from Gold Dots and #7.

Many of the ammo makers are dealing with the lack of usual supplies and having to use what they can find!

How far can this powder go and at what pressure?

I think the bullet is Sierra in this Ted Nugent loading? (it could be another make)

The Hodgdon manual shows the 180gr Sierra JHP loaded with 7.7 grains of AutoComp making 1199 fps with a pressure of 36,000 psi.  So it is possible they are just pushing the extra grain of powder to make their numbers.

I will load a matching similar loading, to test along with this one for a double check...

Quote from: The_Shadow on February 20 2015 09:46:25 AM MST
I think the bullet is Sierra in this Ted Nugent loading? (it could be another make)

The Hodgdon manual shows the 180gr Sierra JHP loaded with 7.7 grains of AutoComp making 1199 fps with a pressure of 36,000 psi.  So it is possible they are just pushing the extra grain of powder to make their numbers.

I will load a matching similar loading, to test along with this one for a double check...

Do you think this is over SAAMI pressure?


.

I don't think it is over the 38,700 psi

SAAMI has three pressure values in their guidelines publication 205
37500 psi(MAP) Maximum Average Pressure
38700 psi(MPLM) Maximum Probable Lot Mean
40500 psi(MPSM) Maximum Probable Sample Mean 
This means that Based on sample size of 10 cartridges none can exceed the 40,500 psi.

Example of 205 10mm pressure MAP
The specific loads of the test have to fit the MAP set by SAAMI.

Here is a typical MAP as set by SAAMI
Nominal Mean Instrument @ 15 feet with =/-90 fps from test barrel
Maximum Average pressure MAP of 35700 psi
Maximum Portable Lot Mean MPLM of 38700 psi
Maximum Portable Sample Mean MPSM of 40500 psi

The ammunition in test (10 rounds) would need to fit this established profile.

Nothing in the sample over 40500 psi

Here is something to consider...The pizoelectric transducer system employs the transducer flush mounted inside the chamber of the test barrel. Pressures developed by the expanding gases to the cartridge walls causing the transducer to deflect creating a measurable electrical charge. This change is then converted to a pressure reading in psi.

Systems being sold are being used on the outside of the chamber of the test barrel. The expanding cartridge is not directly acting upon the transducer as in the SAAMI testing.

Proof Pressures for 10mm are 130% minimum and 140% maximum as set by SAAMI
The formula is based on the Maximum Portable Lot Mean MPLM of 38,700 psi
38,700 x 1.30 = 50,310 psi  and 38,700 x 1.40 = 54,180 psi
Minimum and Maximum
50,310 psi - 54,180 psi  these would be rounded to 50,500 psi - 54,000 psi

  How can we find out if that bullet is a Sierra? It looks like a Zero to me.

Not an XTP?

I have a box of 20. If shadow needs more samples

Zero 180 Bullet maybe different though.


Sierra 180 JHP


Magtech 180 JHP


Winchester 180 JHP (haven't seen these in a long time)


Remington 180 JHP (haven't seen these in a long time)

Ted Nugent was sent by Kevin for pull down and he had gotten it recently, with all the ammo makers having to deal with shortages, this one shows that they changed from earlier loadings as well.

Almost looks like a PPU 180 gr JHP bullet...  How much lead is exposed at the end around the periphery of the hollow point cavity?