Barnes 110gr vs 120gr Vor-TX

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ar2088
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Barnes 110gr vs 120gr Vor-TX

Post by ar2088 »

I have been wondering why Barnes came out with a 120gr when the 110gr has been highly regarded by many. I researched a lot on the net but could not find a clear answer. According to Barnes, the 120gr bullet has a higher ballistic coefficient (which is 0.358 vs. 0.289 for 110gr) and is Boattail (vs Flatbase for 110gr). I understand a higher coefficient means less drop and less wind drift in theory. However, practically, I read that it won't matter until it reaches beyond 300 yards. I also read that Flatbase is actually more accurate in the first 200 yards because of the manufacturing process is very difficult to make perfect concentric boattail.

In terms of velocity and energy, 110gr is 2350fps and 1349lb/ft at the muzzle, vs 2100fps and 1175lb/ft for 120gr. Based on my calculation, the 110gr travels flatter and carries more punch than the 120gr at all distances. So, what's the point of using 120gr?

The only one good thing I found, based on my calculation, is that the windage would be smaller on the 120gr. At 100yd it's 1.43" vs 1.52" for 110gr, and 5.88" vs. 6.34" at 200yd. But it's just a negligible difference.

Can anyone think of a good reason to choose 120gr instead of 110gr?
BlogSarge
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Re: Barnes 110gr vs 120gr Vor-TX

Post by BlogSarge »

I think 300blk said the longer bearing surface of the 120 should lead to better accuracy.

Hopefully he'll pipe up and confirm or clarify.
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Re: Barnes 110gr vs 120gr Vor-TX

Post by A-Game »

viewtopic.php?f=151&t=85972&start=10

Robert said he heard they were very accurate.

This should penetrate deeper on larger game than the 110GR variety.
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rimshaker
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Re: Barnes 110gr vs 120gr Vor-TX

Post by rimshaker »

Seems like an improved refinement. Heavier bullets do penetrate deeper. And the reduced velocity helps the bullet to initiate expansion deeper as well.
The improved BC should more than make up for the velocity difference.

The sweet spot for supersonic BLK seems to be narrowing to the 120-130gr range. At least for hunting purposes. Most match grade ammo are right in the middle at 125gr.
Not as many reviews and experiences with the 130gr weight, since only the Hog Hammers use it. I've heard the TSX bullet it uses isn't quite as good.
ar2088
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Re: Barnes 110gr vs 120gr Vor-TX

Post by ar2088 »

This beats me. Since 120gr has lower velocity and lower energy (which is a combination of weight and velocity) than 110gr, how can it penetrate deeper than 110gr?
rimshaker
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Re: Barnes 110gr vs 120gr Vor-TX

Post by rimshaker »

Any professional ballisticians in the house? Lol

Robert, you wouldn't by chance have access to the 110/120gr Vor-TX datasheets? You provided one previously for the new 120gr UMC.
ar2088
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Re: Barnes 110gr vs 120gr Vor-TX

Post by ar2088 »

I guess lower velocity delays expansion which gives a little more time to penetrate?
BlogSarge
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Re: Barnes 110gr vs 120gr Vor-TX

Post by BlogSarge »

ar2088 wrote:I guess lower velocity delays expansion which gives a little more time to penetrate?
Often it does. Lighter, faster bullets will sometimes expand sooner and more dramatically, thus reducing their ability to penetrate.

So far, though, with the 110gr blacktip I have yet to not have one pass completely through a Michigan whitetail. Maybe more penetration is needed for heavier game.
ar2088
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Re: Barnes 110gr vs 120gr Vor-TX

Post by ar2088 »

That's good to know. Thanks.
avant4me
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Re: Barnes 110gr vs 120gr Vor-TX

Post by avant4me »

I don't know how you haven't had one fully pass through on a Whitetail?

I double lunged a doe two days ago and it went clear through. (30 yards) Last year I shot a buck and it went clear through after destroying the heart and shattering the leg on its way out. (55 yards). All were 10.5" barrel.

I haven't ever heard of under penetrating being an issue with the 110gr blacktip.
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