Parabellum Research PBR 200gr Hornady XTP pull-down

[The_Shadow]

Cartridge is from Ammo Manufacture: Parabellum Research PBR 200gr Hornady XTP (provided by IC)
Ballistics Information: 10mm Auto
Muzzle Velocity: 1250 fps
Muzzle Energy: 639 ft. lbs
Brass Make/Headstamp: Star Line  – Brass
Bullet Make/Weight/Construction/Info; Length 0.6810"/Dia. 0.4000": Hornady 200gr
HP Depth 0.1500" / HP Dia. 0.1400" tapered / Mouth 0.2275"
Actual weigh 199.8 grains  Crimp Diameter 0.3985"
C.O.A.L.: 1.2545"
Primer: Brass color
Case: Diameter 0.4215" Crimp Diameter 0.4210" (med crimp)Length 0.9880"
Powder Description/Positive ID/Type/Charge Weight: Accurate Arms #9 13.6 grains
(Compressed loading)( Max shown was 12.5 grains 1170 fps)(newer #9 powder)








Pieces of the powder remained compressed

[Intercooler]

  I guess they makes sense these have a tad less #9 compared to the V-Supremes.

[The_Shadow]

Cartridge is from Ammo Manufacture: Parabellum Research PBR 200gr Hornady XTP (provided by PandaBear)
Ballistics Information: 10mm Auto
Muzzle Velocity: 1250 fps
Muzzle Energy: 639 ft. lbs
Brass Make/Headstamp: Star Line  – Brass
Bullet Make/Weight/Construction/Info; Length 0.6810"/Dia. 0.4000": Hornady 200gr
HP Depth 0.1500" / HP Dia. 0.1400" tapered / Mouth 0.2300"
Actual weigh 199.8 grains  Crimp Diameter 0.3985"
C.O.A.L.: 1.2535" / 1.2540"
Primer: Brass color
Case: Diameter 0.4215" Crimp Diameter 0.4210" (med crimp)Length 0.9880"
Powder Description/Positive ID/Type/Charge Weight: Accurate Arms #9 13.8 / 13.6 grains
(Compressed loading) As is typical with a compressed charge the XTP bullet is showing stress where the bullet seater pushed down. ( Max shown was 12.5 grains 1170fps)(newer #9 powder)

[Intercooler]

I wonder how #9 matches up to the Federal powder found in the new Trophy Bond?

[The_Shadow]

It's hard to say, if they blended something special for Federal or if it is the newer AA#9.  Remember there were some small bits of yellow specs in the Federal loading.  The color (dull) and kernel sizes is slightly different.
Here is the 15.4 grain charge from Federal in the 180gr trophy bonded, that is a solid and is shorter in length than an XTP.

[The_Shadow]

Also here is Hornady's 200 load data page...


The 180 grain XTP was shown with 14.9 grains AA#9 @ 1250 fsp

There is no other powder data shown with this much of a charge weight for 10mm and the velocities are very close to what has been seen.   

[10mm-Admirer]

I shot some of that ammo a few months ago and it produced smiles with a newer Glock G20SF factory barrel.  Same ammo shot in a KKM barrel showed distress and web expansion on the brass.  May have been a bad box.  It was stout but accurate.  I won't use it again.  I recycled instead of reloading  most of the brass.

[Intercooler]

Sounds like the barrels aren't too good. What's the weakest you have to shoot to get nice brass?

[10mm-Admirer]

Nothing wrong with the barrels.  Same box of ammo.  It is an over book max charge of AA9 according to the pull down.