CORBON 135gr Pow'RBall & 200RNPN Hunters pull down

[REDLINE]

The Pow'R Ball bullet measured Length 0.5990"/Dia. 0.4025": 135gr. Pow'R Ball
The Nosler 135 JHP measured Length 0.4935"/Dia. 0.4010": 135gr. JHP

The bullet length and dia. differences could account for some differences...

I'm wondering how the actual bearing surface lengths of the two 135gr bullets compare.  Going by the overall lengths of the bullets it loosely seems like the 135gr Nosler should be able to be pushed faster with equal or less pressure behind it.  But knowing the actual bearing length may tell a different story.  Is it still possible to get measurements on the actual bearing length of both 135gr bullets?

[The_Shadow]

The length of the bullet that sticks into the case is what will raise pressures higher the deeper it is set inside...

[REDLINE]

Sure, but if all else is equal, so will a longer bearing surface of a bullet traveling through the barrel, compared to a shorter one.

[Intercooler]

See soon how the Cor-Bons do in gel. So far nothing excites me for the money.

[Intercooler]

Well the Chrony showed that 0.2gr's difference today. The PowRBall went 10 FPS average slower. Makes me feel pretty confident about what we are seeing!

[The_Shadow]

Tested from the 10mm S&W1006 5" June 8, 2013

CORBON 135gr  Pow R Ball 1450 fps
CORBON 200gr RNPN Hunters 1154 fps / 1128 fps

[Intercooler]

Little higher than me on the 200's but 135's we are right there.