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6br barrel length velocities

Currently have a mag fed 6br set up with a 28” barrel.

Next year I’d like to hunt with this gun, but also target shoot out to 500 max. It’s just to big for me to walk with. (I tried this year twice and it was not fun.) So looking to get it chopped to 24in. Looked in the forums, and not seeing much. Perhaps the velocities aren’t where they need to be?

Questions:

Wondering what velocities people are getting with barrels 24” and shorter with bullets from 90gr-108gr?


Thanks fellas.
 
@Kevin1990 I was doing yesterday this excercise as I am building a 22" 6br rifle for hunting.
I put some data into GRT and here is what came out:

Berger Hybrid 105
29.62 gr VVN140 (as per OBT tool)
2662 fps

2241 J

I hunt up to 300m and still have doubts as to whether the bullets would carry enough energy to drop a deer. Frankly speaking I think it is a decent hunting combination for up to 200m in my view. But this is theory. I did not do any hunting with 6BR so far.
 
I have a Sako with 24" barrel, 6 Dasher, Varget and Nosler 95 Partitions. I have shot deer and antelope at 400.
 
My old 6BR shot 2825 fps with a 105 Berger VLD. I believe this was a fast barrel generally speaking. Varget was magic in that rifle. Barrel was cut at 24 inches. I used to carry it hunting all the time. Hope this helps.
Paul

My Wilson barrels are fast. They will easily do that velocity. In the Snipers Hide test the 26-in Wilson was the fastest barrel they tested out of 31 barrels. In fact it was as fast at 26 as several of the others were at 28.

I honestly had no idea but I did think that was very interesting.

My 6BR velocities typically top out around 2900 ft per second at 26 in.
 
All good to hear. I’ll probably go with Nosler partitions or a Barnes offering. I’d like to shoot some Berger 90bt or 108Bt. Just curious about velocities. I have these questions quite often. Probably not a bad idea to invest in quick load.
 
I have a 21-1/2” 4 groove cut rifled. Likely a .237 krieger 8 twist. I don’t know for sure. panda action, straight 6BR.
I settled on 28.7gr H4895, wolf primer, Vapor Trail 103, 2,732 FPS. Got it up to about 2,760 in testing, but is happier a little lower.

I shot it in a few of our 300 yard clay matches this year. Suppressed. Did better than I expected.
 
When we’re comparing velocities are we also keeping it to same twist rates for these barrels?
Getting off the OP topic, Here's a test. Velocities don't change that much with twist rate changes.
 
You could go with a smaller profile barrel or a carbon fiber one and still keep some length.
I definitely could, but they are a lot more money than I want to spend. Also, the problem was getting the barrel caught in brush and thicket. When slung behind my back, if I duck, the rifle is still above my head And gets caught, and carrying it in the front is no fun either.
 
For a hunting rig, making the barrel length convenient is my main concern. For example, one of my 22BR's is 22". -Al
Agree! A hunting gun has to fit me and its purpose. If bbl length prevents me from getting to a certain velocity, I'd pick a different cartridge before I'd fight the rifle. IMO, there are very few instances that velocity is a make or break thing in a hunting rifle, particularly.
 
Agree! A hunting gun has to fit me and its purpose. If bbl length prevents me from getting to a certain velocity, I'd pick a different cartridge before I'd fight the rifle. IMO, there are very few instances that velocity is a make or break thing in a hunting rifle, particularly.
Agreed. However, I do have access to 300 plus yard shots depending on where I set up. I’m a little concerned with velocity, because I don’t want my bullet dropping 20 inches at 300 yards.


Also, Before I hunted with this 6br it was strictly a target rifle. Perhaps you’re right though. I just want some real world velocities, the 6brs I have now are just so easy to load for. But perhaps a different cartridge is in order.
 
Agreed. However, I do have access to 300 plus yard shots depending on where I set up. I’m a little concerned with velocity, because I don’t want my bullet dropping 20 inches at 300 yards.


Also, Before I hunted with this 6br it was strictly a target rifle. Perhaps you’re right though. I just want some real world velocities, the 6brs I have now are just so easy to load for. But perhaps a different cartridge is in order.

6xc. Made to work in SA and feed from ANY MAG. More velocity than a 6br and easy to tune.
 
Agreed. However, I do have access to 300 plus yard shots depending on where I set up. I’m a little concerned with velocity, because I don’t want my bullet dropping 20 inches at 300 yards.


Also, Before I hunted with this 6br it was strictly a target rifle. Perhaps you’re right though. I just want some real world velocities, the 6brs I have now are just so easy to load for. But perhaps a different cartridge is in order.
There are a few of us weird folks that have done 30BRs. If you are tooled up for the caliber, it may be worth considering. I'm pushing a 125SST about 2,870 out of a 16"+ barrel. It's been real bad medicine for small to medium sized TX white tail and pigs. There's just something about that 30cal on game.
 
Agreed. However, I do have access to 300 plus yard shots depending on where I set up. I’m a little concerned with velocity, because I don’t want my bullet dropping 20 inches at 300 yards.


Also, Before I hunted with this 6br it was strictly a target rifle. Perhaps you’re right though. I just want some real world velocities, the 6brs I have now are just so easy to load for. But perhaps a different cartridge is in order.
I totally understand. I don't think you'll see much difference though. I run 90's at about 3100 from a 6 BR or Grendel. from 23-24" bbls, fwiw. Pretty warm in the Grendel and not bad at all from the BR. I don't shoot much over 90-95gr bullets, so not much help with those but just run some numbers through a ballsitics program and see what your drops are at different speeds and see if it's something you can live with or not. I think you'll be just fine at those distances. Can't give me an ill handling hunting rifle though.
 
There are a few of us weird folks that have done 30BRs. If you are tooled up for the caliber, it may be worth considering. I'm pushing a 125SST about 2,870 out of a 16"+ barrel. It's been real bad medicine for small to medium sized TX white tail and pigs. There's just something about that 30cal on game.
I have a 30br Benchrest set up coming to me at the end of the month hopefully. I’ll be shooting that and if I like it, that may be another option.
 
There are a few of us weird folks that have done 30BRs. If you are tooled up for the caliber, it may be worth considering. I'm pushing a 125SST about 2,870 out of a 16"+ barrel. It's been real bad medicine for small to medium sized TX white tail and pigs. There's just something about that 30cal on game.
My best friend shoots the 125 grn Barnes TSX out of his 30 Br at 2950 fps. It’s a great East Texas White Tail combo.

I don’t think it would be that great past 300 though.
 

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