10mm and 140gr. Barnes bullets


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Strykervet
June 1, 2011, 07:24 PM
I'm interested in loading a 10mm round with a light bullet and high velocity. I know the 135gr. Nosler can be pushed to 1600-1800 fps., but it disintigrates on impact. I'm looking for massive kinetic energy with decent penetration, but not overpenetration, something I am concerned about with 180's and 200's loaded fast.

I am curious if anyone has any experience loading the Barnes bullets to high velocity and what they do on impact. For instance, do the petals just shear off? If so, do they leave separate wound tracks or just collect in the wound channel? How much penetration can you get?

If this loading is practical, and anyone has data for 800X or Blue Dot, that would be appreciated too (a starting load and whatever load you stopped at just for reference would be nice).

Thanks!

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Friendly, Don't Fire!
June 1, 2011, 07:35 PM
No, the petals do not shear off.
I shot a brand-new Full Size Rubbermade trash can filled to the top with water with my 500 Magnum 275g Barnes X Bullet and the bullet ripped open the closest side from top to bottom and went about 24" or more and it got caught inside the opposite side, caught in the plastic by one of the petals, the bullet mushroomed perfectly! It was lodged into the other side by one of the razor-sharp petals!

I was drenched, along with the gun as I was kneeling about 5' away, so I could hit the water near the top of the can where the diameter is largest (most water to go through).

Had I known I was going to destroy a perfectly good, new trash can, I would not have shot it! I thought it might just make one or two holes. The shock wave must have been tremendous to rip it through the forward hole from top to bottom!
And, those bullets are not even loaded to maximum as I wanted more accuracy than raw uncontrolled power!

Strykervet
June 1, 2011, 07:58 PM
Thanks for the reply, but that was from a .500 and those bullets are made to go that fast, no? I haven't used those in the Beowulf yet, which is similar to the .500... I might have to try it now. I use Sierra 350gr. JHP and 400gr. SP and those are some hard hitting rounds at 1600 something fps.

The problem with the 10mm is that lighter bullets just aren't usually made to go that fast. They don't hold up. I think they load factory 140's at 1300 or something, but most factory 10mm ammo is loaded to hotter .40 specs. The 10mm XPB bullets that I have have a huge cavity and thin petals --I can't help but think they'd shear off at high velocity, and due to the lower density, I wonder can they be loaded that fast anyway?

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