16.5” vs 18” 6 creed

_MountainBum

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looking for feedback from those that run shorty 6 creeds, and what barrel length is short but optimal for pushing 108’s. I am mostly between 16.5-18” but would entertain up to 20”

Thank you for your input!
 
Joined
Oct 6, 2014
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Define optimal for yourself:

Ie.

Density Altitude of your primary hunt locations.

Define a max effective range that is realistic for your capabilities.

Work backwards from there to determine what velocity you need to get to that point. That will inform how long of a barrel you will need.
 

mxgsfmdpx

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Man for a 6 creed I’d want to take as much advantage as possible, otherwise I’m just shooting my .243.

For 6 creed and high BC heavies, 18” with factory ammo at mid DA gives you an 800ish yard gun.

I personally like to stay closer to 2,000 FPS impact velocity if I can with the bullets I shoot.

Run some calcs with your planned bullet and see what you come up with. DO NOT overestimate your velocities like everyone does.
 
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Jan 14, 2019
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I have a 20" 6cm currently. 40gr of h4350 behind a 108 eldm puts me at 2920 mv, no can, 2090 @ 600.

Next barrel I'm looking at 16.5. Target mv would be 2800 with a can, have a bit of room to add powder charge if need be. That would put me just under 2000 @ 600. 5kDA.
 
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I only have 18" but I really like that length. Enough velocity, not too unwieldly with a 6-7" can. It's already on the verge of being ass heavy so no desire to go shorter for open country hunting. Wouldn't hate a little less length for treestand/blind hunting.
 

mxgsfmdpx

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I only have 18" but I really like that length. Enough velocity, not too unwieldly with a 6-7" can. It's already on the verge of being ass heavy so no desire to go shorter for open country hunting. Wouldn't hate a little less length for treestand/blind hunting.
For an 18” with a 5-6” can to be ass heavy, are you using a heavier chassis and titanium can?

Most of mine that are suppressed, even with shorter barrels, with wood and carbon Sporter stocks, still lean a bit nose heavy. I don’t have the lightest suppressors in the world tho.
 

Sadler

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Dec 17, 2016
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My 16” 6 creed pushed 109s at 2900 and 115 DTACS at 2860. If I recall correctly, I was shooting the factory 108s around 2760.
 
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For an 18” with a 5-6” can to be ass heavy, are you using a heavier chassis and titanium can?

Most of mine that are suppressed, even with shorter barrels, with wood and carbon Sporter stocks, still lean a bit nose heavy. I don’t have the lightest suppressors in the world tho.

Probably a bit biased by recollections of shooting in a krg bravo. But IIRC even in a rokstok with a Scythe, flat cap, no cover, putting it on a bag in front of the mag it wanted to teeter towards the back end. I mount my scopes further back than most as well which likely plays a part. Not an issue by any means with rokstok and probably not a factor worth considering much if a suppressor will be used.
 

Floridave

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Sep 20, 2022
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I’m debating this same thing with myself, how far to cut my 23 inch barrel to accommodate 6 inch suppressor.
I’m planning to actually take a day and chronograph my load that day, cut it to 20 inches, chronograph again, depending on that keep cutting and checking fps until it’s within 1/4 inch of what will work for me.
Then take it to have that last bit cut properly and threaded.
I really hope I can end up with 16-17 inches so the total length the same or slightly shorter than my current 23 inch barrel.


Sent from my iPhone using Tapatalk
 
Joined
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UTAH
I went 18”. Like most others the heavies around 2800. Lighter coyote loads at 3000+ depending on bullet. Don’t regret it one bit and it’s a pretty versatile little rifle.
 

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WyldGoose

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Oct 16, 2022
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Similar to others, my 18” is shooting factory 108’s at 2780 with 150 rounds through it so far. Just grabbed another case of 200 so we’ll see if it climbs anymore, but overall I’m happy with the length/balance/weight.
 
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20” here, factory 108’s are going 2850. Pretty happy with it. Might consider 18” next time but it balances really well the way it is.
 

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Thejet

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looking for feedback from those that run shorty 6 creeds, and what barrel length is short but optimal for pushing 108’s. I am mostly between 16.5-18” but would entertain up to 20”

Thank you for your input!
Could always +P the thing if you plan to hand load. Then you could go 16 and still keep the 18-20 speeds.
My .243 +P pushes 108s at 2850, 15inch with pinned MB.
 
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