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-   -   Chrono'ing the 30" barrel (https://www.huntingnet.com/forum/black-powder/364696-chronoing-30-barrel.html)

MountainDevil54 05-22-2012 07:51 AM

Chrono'ing the 30" barrel
 
Going out here now gents to see what kind of velocity I've picked up with that 30" barrel VS the Accuras 27" barrel. :barmy:

This will be interesting!

Semisane 05-22-2012 08:04 AM

I predict 90 fps.

MountainDevil54 05-22-2012 09:29 AM

UL LDR - 1876-1870-1916

V2 - 1803 - 1823 - 1846

100gr BH209, 250gr Powerbelt Aerolite, cci 209M primers.

Going to try 90gr BH209 next as the LDR prefers that charge.

Muley Hunter 05-22-2012 09:32 AM

Told you it wouldn't be enough to matter at ML ranges.

I prefer the shorter barrel for easier handling.

arcticap 05-22-2012 01:50 PM


Originally Posted by Muley Hunter (Post 3939219)
Told you it wouldn't be enough to matter at ML ranges.

I prefer the shorter barrel for easier handling.

It may or may not matter. The extra velocity may stabilize a particular bullet better than a shorter and slower barrel will. I guess that it would depend on what is meant by the word "matters" in the statement above.
Does an inch or two matter?
Does a better group matter?
Does better penetration matter?
Does up to a 5.5% increase in velocity and penetration matter?
It could matter in competitions like those being held at Friendship, Indiana next month.
A precise velocity sure does matter to an Olympic shooter who is trying to hit the X with every shot using super expensive ammo which a gun may be harmonically in tune to a particular higher velocity.
IMO it can't be reasonably predicted that the increase in velocity won't matter
It can at least be said that the barrel offers a wider range of velocity options for custom tuning the gun to a particular bullet.
The actual benefit in performance may not have even been discovered yet. And that's just with Blackhorn, there are other powders too.

Muley Hunter 05-22-2012 02:20 PM

Jon is a hunter. It won't matter, and he's the one I was talking to.

The long barrel will matter in the brush though.

arcticap 05-22-2012 03:11 PM


Originally Posted by Muley Hunter (Post 3939272)
Jon is a hunter. It won't matter, and he's the one I was talking to.

The long barrel will matter in the brush though.

I see that MD posts about shooting precision groups a lot.
He's a target shooter as well as a hunter.
What's the difference between with potentially achieving better groups whether hunting or target shooting?
No matter what is being shot at, the higher velocity will cut through the wind better too resulting in less wind drift.
And since higher velocity penetrates better, maybe the longer barrel will shoot through the brush better too.
So obviously under certain circumstances higher velocity can matter.
The difference between the averages of the 2 samples is 53 fps (1824 fps verses 1877 fps), with a greatest difference of 113 fps between the lowest of one sample verses the highest of the other.
It would be interesting to see if either of the spreads could grow to be even greater with larger powder charges or with different bullets or powder.

MountainDevil54 05-22-2012 03:26 PM

the longer barrel sure didn't help when a bullet went half way through my chrono today :( Luckily it just skimmed it with half the bullet. Still works perfectly.

chaded 05-22-2012 03:29 PM

3 inches isn't going to make a difference as far as carrying goes as long as its not barrel heavy which Jon said it is not. Now to make a reasonable comparison would be a 25" or shorter barrel vs. a 30". A 27 vs 30 is not much of a comparison as far as carrying goes imo.

MountainDevil54 05-22-2012 03:32 PM

Well i have the 25" apex i can compare against if that helps, or the 24" wolf.


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