Shortest barrel for 7 PRC ??

[Danieltremblay]

I realize they make the 7BC for shorter barrel but don’t know how I feel about reloading that brass or those pressures. What is the shortest barrel a guy can use with a can on 7 PRC ? I still want to be able to ethically reach out to 800.

 

[JM151]

I have a 20” benchmark, shoots 2870. Doing it over I would’ve gone 18” and chambered 7-300 PRC.

 

[Danieltremblay]

I have a 20” benchmark, shoots 2870. Doing it over I would’ve gone 18” and chambered 7-300 PRC.

Interesting what is your reasoning for the 7-300PRC ?

 

[JM151]

Interesting what is your reasoning for the 7-300PRC ?

Cut 2 more inches off barrel and still be above velocity of a 26” 7 PRC.

 

[Benny119]

I would be worried about a 7-300 spitting a lot of unburned powder out of an 18” barrel.

Powder burn rates would be my main consideration when trying to make a short barreled magnum cartridge. You might be able to do some numbers on Gordy’s reloading tool with a similiar cartridge to see estimates on velocity and burn rates.

 

[WeiserBucks]

I would be worried about a 7-300 spitting a lot of unburned powder out of an 18” barrel.

Powder burn rates would be my main consideration when trying to make a short barreled magnum cartridge. You might be able to do some numbers on Gordy’s reloading tool with a similiar cartridge to see estimates on velocity and burn rates.

I wouldn't worry a bit. I have a bigger 7mm than what is being discussed in this thread and it works great in a 20".

 

[Ganderzone]

No suppressor 22" with a brake, 20" would be my limit with a can. While shorter is nice there is more barrel rotation the shorter you go which effectively effects shootability. A can on a 20" is a great balance of speed and how the gun tracks under recoil with the weight of the can out front. As with any gun, stock ergos, overall weight and even grain weight will effect how the gun recoils. Really comes down to what you prefer and accept as recoil or ability to track a shot.

 

[tallbuchholz]

While shorter is nice there is more barrel rotation the shorter you go which effectively effects shootability. A can on a 20" is a great balance of speed and how the gun tracks under recoil with the weight of the can out front. As with any gun, stock ergos, overall weight and even grain weight will effect how the gun recoils. Really comes down to what you prefer and accept as recoil or ability to track a shot.

What is barrel rotation and how does it limit shootability in short barrels? Are you just saying that a shorter barrel would have more muzzle jump? I'm not sure that's true, but even if it is, I don't get the relevance on a magnum where you have no chance of tracking the shot anyway. As long as you maintain desired MV, shorter is better.

 

[Ganderzone]

What is barrel rotation and how does it limit shootability in short barrels? Are you just saying that a shorter barrel would have more muzzle jump? I'm not sure that's true, but even if it is, I don't get the relevance on a magnum where you have no chance of tracking the shot anyway. As long as you maintain desired MV, shorter is better.

Barrel rotation/muzzle flip same thing, it's a plane based on line of sight and there is rotation from the contact point of your shoulder. The further the weight from that point the less flip or rotation you will experience and the goal is to have the rifle track in a straight line and not an arc. Same reason you see muzzle heavy in prs etc. Once again, I say it's what you find as acceptable recoil and everyone's interpretation of their limit is different. Take the same gun and have two different length barrels, shoot it and you will see what I'm getting at.

 

[cuerro viejo]

Depends on DA

When my 22” burns up, I’m going 18”.

If it wasn’t Carbon I’d cut it to 18” tomorrow.