LAX 180gr Xtreme Plated Flat Nose (IC 3/4/15) Pull-Down

[The_Shadow]

Cartridge is from Ammo Manufacture: LAX 180gr Xtreme Plated Flat Nose (provided by IC 3/4/15)
Ballistics Information: 10mm Auto
Muzzle Velocity: 1059 fps
Muzzle Energy: 448 ft. lbs .
Brass Make/Headstamp: Star Line – Brass (New)
Bullet Make/Weight/Construction/Info; Length 0.5800" Dia. 0.4000": Xtreme Plated 180 FN (Concaved base) (front section of the bullet 0.4005")
MEPLAT 0.2700"
Actual weight 180.8 grains   Crimp squeezed bullet N/A 0.4005"
C.O.A.L.: 1.2575"
Primer: Large Pistol Nickel color
Case: Diameter 0.4215"  Crimp Diameter 0.4225" (light crimp) Case Length 0.9875"
Powder Description/Positive ID/Type/Charge Weight: Power Pistol 7.8 grains*
Cartridge weights before pull-down 267.0 grains

[Intercooler]

   The differences we see in velocity between these, reman and the Remington's all with Power Pistol is? Could it be seating depth, tension, or something else?

[The_Shadow]

I really think it is the plated bullets, even though they are the Xtreme brand it may be shearing at the lower velocity in some barrels.  The velocity should be a good bit higher.

[The_Shadow]

Here is a more direct comparison of the power...

LAX is using this powder...


This is Power Pistol powder...


Both IMR SR4756 and Power Pistol track fairly close but Power Pistol seems to have a slightly higher velocity yield...