How short can I go on a 6CM barrel?

[go4thegusto]

I want to get a short as possible on a 6CM barrel without falling off the cliff on performance. I am shooting factory loads so cannot reload fast powder. I am thinking 16-18 would be nice to get the package down to the size I am after. Thanks for any input.

 

[cjl2010]

16” unless you want to deal with the SBR process or you could build a pistol and go shorter.

 

[PathFinder]

You can go 16 or 18 and still make hits well beyond 1k.

 

[go4thegusto]

16” unless you want to deal with the SBR process or you could build a pistol and go shorter.

Using a Striker pistol action so can go any length I want as long as I maintain as a "pistol" with an arm brace.

 

[cjl2010]

Using a Striker pistol action so can go any length I want as long as I maintain as a "pistol" with an arm brace.

What are you planning on using it for?

 

[jpretle]

What are you planning on using it for?

That would be my question, also.

 

[go4thegusto]

What are you planning on using it for?

Antelope, deer, wolf...likely never over 300 yards or so.

 

[cjl2010]

Antelope, deer, wolf...likely never over 300 yards or so.

Hornady used a 24” test barrel for their 103 eldx ammo. Average was 3050 fps. I bet you could plan on 25fps or so lost per inch of barrel. Might give you a semi educated guess on speeds. Plug those numbers into a calculator and see where you end up at.

 

[SEtoNWHunter]

Check this out:

6 Creedmoor barrel length versus muzzle velocity (31 to 17 inches)

6 Creedmoor barrel length and velocity 6 Creedmoor is rapidly rising in popularity among long range shooters. Combining an efficient case design with the wide range of excellent 6mm bullets, the 6…

rifleshooter.com

This guy has done a bunch of barrel length and velocity testing and puts a lot into it. He seems to be very honest about the info and limitations

My next rifle build is going to be a 6mm CM (savage action) in a chassis with a folding stock. Barrel cut to 18" I think. It will put the new hornady 6mm ARC with a 24" barrel to shame and be shorter.... At least I hope so.