would the Grendel benefit from a 28" barrel?

[Friendly]

so I've decided I will buy a custom barrel for my T/C Pro Hunter. being custom, I can get it at any length...but being most barrels from T/C are 28", I'm curious if the Grendel would benefit?

[Sixoeight]

http://www.65grendel.com/forum/showthread.php?17517-any-data-on-the-Grendel-out-of-a-barrel-longer-than-24-quot

[NugginFutz]

You'll want to check with bwaites, on that. As far as I am aware, he's the only member who's owned one with a 28 inch tube. He's spoken quite favorably about it, but I don't recall how much improvement over, say, a 24" bbl there would be.

ETA: thanks, 6-0-8

[nockhunter]

so I've decided I will buy a custom barrel for my T/C Pro Hunter. being custom, I can get it at any length...but being most barrels from T/C are 28", I'm curious if the Grendel would benefit?

You sure will!

Check this.

http://www.accurateshooter.com/guns-of-week/6-5-grendel-f-classer-by-speedy/

Mike

[LR1955]

so I've decided I will buy a custom barrel for my T/C Pro Hunter. being custom, I can get it at any length...but being most barrels from T/C are 28", I'm curious if the Grendel would benefit?

FR:

I had a CSS Match Rifle that used the 7.62 X 39 bolt. I believe the barrel was 28" on those but can't quite remember. Nothing spectacular from it other than poor performance past 500 plus sheared bolt lugs and a broken side charging knob.

I currently have a Match Rifle using a 26 inch barrel that my barrel maker made for me. Barely long enough for a decent sight radius with match rifle sights. Great shooter, no mechanical problems. If I were to do it again, I would go with a 24 inch barrel and a six inch bloop tube to bring some of the weight back towards me when shooting standing. However, if I were to shoot over the course again, I would use my 6 AR with a 26" barrel simply because it is a much more competitive cartridge.

You won't get a increase in velocity big enough to make a difference between a 24 and 28" barrel.

If you intend on using irons, I would go with a 22 or 24 inch barrel and a six inch bloop tube.

If you intend on using an optic, I would go with a 18 or 22 inch barrel -- fluted to remove weight.

LR55

[Friendly]

my bad. I've got memory issues from some head trauma 20 years ago. sometimes I cross up what I have asked...sorry for the double post. mod's, can my 24" and this 28" query be merged?

[Klem]

Running the numbers on Quickload you will get an extra 70fps extending the barrel from 24" to 28". As the barrel gets longer and heavier the incremental benefit drops to a point where you wonder why you are not using a 6.5 with a shorter barrel and larger case (6.5*47, 260Rem, 6.5 Creedmore).

[jkingrph]

My CZ American came standard with a 24" barrel. I wish it were a little heavier, not up to varmite , but maybe a heavy sporter weight . If it could be had with open sights I would love to have a 26" barrel. I have a Husqvarna M46 with a long barrel, 25 or 26 and love it with the open sights and long sight radius.

[bwaites]

In an AR with rifle length gas, the 28” is actually a liability. There is too much dwell, and running even hot factory ammo could cause case head swelling. I had excellent accuracy, and Factory Hornady ammo shot 1/2 MOA, but factory LBC was too hot and I could make Grendel belted magnum cases. I also could not run handloaded 123’s with 8208 at 28.3 grains without doing the same. That load has been safe in every other Grendel I’ve had. The additional 4 inches over a 24 only got me 40FPS, not as much as I had hoped for.

In a bolt gun, where you might be able to safely load hotter and use a slower powder such as RL15, 16, or 17, it might get you more. Lapua brass is theoretically good to 60,000 PSI, so running a bolt gun hotter is done frequently.