Barrel length question 6.5 PRC

[Luked]

Planning on having my Model 70 Winchester Rebarreled to a 6.5 PRC.
Planning on putting on a break.
What Barrel length would you all suggest for the 6.5 PRC.
A lot I see in factory rifles are 26".
Will 24" work fine?

 

[Gone4Days]

I have a 6.5 prc with 20” barrel

 

[TaperPin]

I’m old school and liked everything with a 26” barrel 20 years ago, now there are plenty of shorter barrels and everyone is happy so idk. I have a 6.5 prc with 24” barrel and it‘s fine - still I kind of wish it was 26” even if I couldn’t tell a difference. You can’t go wrong either way, but 2” extra inches would get you at least 50 more feet per second or so.

edit: it just hit me you’re using a brake - 26” and a brake on top of that would be really long.

 

[Tyler Holderby]

22"

 

[eoperator]

20-22" you will never miss that 100-150fps

 

[Team4LongGun]

20” is plenty

 

[DisplacedHusky]

Lets hear those 20” and 22” velocities with factory ammo.

 

[hereinaz]

How far do you want to shoot?

What bullet?

 

[Team4LongGun]

20” 3100 FPS Hammer Hunter hand loads. Plenty of room for increased velocity as well.

 

[pbroski]

Mine has a 22" barrel. The load is 2815 fps with Berger 156 EOL's and VV N568. It stays supersonic to over 1300 yards.

 

[Gone4Days]

20” shooting 2795 with suppressor on 143 gr ELDX factory loads.

2758 fps without suppressor.

 

[DisplacedHusky]

20” shooting 2860 with suppressor on 143 gr ELDX factory loads.

2758 fps without suppressor.

102 fps boost with a suppressor. That’s what I like to hear. What suppressor are you using?

 

[Deadspace]

Mines 18” shooting 147s at 2900 with a TBAC ultra 9. It’ll kill way past my ability

 

[Luked]

Most of what will be shot out of it will be 143 ELDs
But will probably run 156 from time to time.
I think I am going to go with a 24" then a Brake.
Still trying to do my research on all of this.
Have most of what I want figured out but Barrel length, Contour profile and what Brake to use are the things I am trying to figure out.

 

[StupidLightweight]

I'm rocking a 24-inch PRC now, and it's lethal, but my next will be an 18-inch tube for suppressed usage. If I were not using a can, I'd go 22 inches. The 6.5 PRC is a beast of a cartridge.

 

[Dsellen14]

I'm just starting a 6.5 PRC build myself. I ordered a 22" carbon fiber wrapped barrel for couple reasons that I settled on in my head. First is if i wanted to sell this custom build down the road then its probably easier too do with a 22" barrel due to the importance of the buyer of retainment of velocity. Second was that I'm not sure if it will run more accurately with a suppressor or not. So I wanted to be able to shoot it and not blow out my ears if i didnt run the can. Hope that helps.

 

[CapnKM]

Currently building a 24” but does anybody have data on how much velocity you actually lose in dropping to 22”, 20”, 18” etc with good factory ammo?

 

[northernalpine]

Currently building a 24” but does anybody have data on how much velocity you actually lose in dropping to 22”, 20”, 18” etc with good factory ammo?

General rule of thumb is 20-30fps per inch, with some caliber exceptions.

 

[CapnKM]

General rule of thumb is 20-30fps per inch, with some caliber exceptions.

That’s better than I thought, thanks! That makes it way more reasonable to build a 20” to put a can on down the road

 

[kkp005]

Mines 18” shooting 147s at 2900 with a TBAC ultra 9. It’ll kill way past my ability

Nice! What’s your load data on that ? I’m assuming RL26.