6.5 creedmore barrel length question

[Vwork]

Building my first AR in 6.5 creedmore. I’m looking at a proof research cam gas barrel for a lightweight hog hunting rig my question is how much velocity will I sacrifice in a 20” compared to a 24” barrel? Will shoot prime 130gr Ammo. Thanks for any info.

 

[BLDTYLRY]

Check it this article: https://rifleshooter.com/2016/02/6-...el-length-on-velocity-cutting-up-a-creedmoor/

I'm thinking about going 18". ~50fps loss from 20" and ~120fps from 24".

 

[Vwork]

Check it this article: https://rifleshooter.com/2016/02/6-...el-length-on-velocity-cutting-up-a-creedmoor/

I'm thinking about going 18". ~50fps loss from 20" and ~120fps from 24".

Thanks that helped a lot!

 

[bigjake83]

You can not compare the MV from a Bolt Gun to an AR, the AR will always have slower MV

 

[cheapmoa]

How the Hit % and recoil is effected by MV for a 1200 yard 12" target. It's a trade but just depends what you need.


6.5 - 147 ELDM - 2500 - 18% - Recoil Energy of 11.13 (ft.lbf)
6.5 - 147 ELDM - 2600 - 20% - Recoil Energy of 11.73 (ft.lbf)
6.5 - 147 ELDM - 2700 - 23% - Recoil Energy of 12.33 (ft.lbf)
6.5 - 147 ELDM - 2800 - 27% - Recoil Energy of 12.93 (ft.lbf)
6.5 - 147 ELDM - 2900 - 31% - Recoil Energy of 13.53 (ft.lbf)
6.5 - 147 ELDM - 3000 - 35% - Recoil Energy of 14.13 (ft.lbf)
6.5 - 147 ELDM - 3100 - 38% - Recoil Energy of 14.73 (ft.lbf)
6.5 - 147 ELDM - 3200 - 43% - Recoil Energy of 15.33 (ft.lbf)
6.5 - 147 ELDM - 3300 - 49% - Recoil Energy of 15.99 (ft.lbf)

 

[Vwork]

Thanks

 

[Vwork]

Comparing two different barrels really means nothing bud. Different quality, twist, rifling, and on and on.

Even my last two 6mm barrels, made by Krieger, same twist, same length, same reamer (which has only cut my two chambers), same load, same Chrony same everything are 70 fps apart.

Apples to oranges. I'll never own a barrel over 22" the rest of my life.

I've even had everything cut down expect a fluted factory rifle.

I like them handy...

I wanted 22" at first on my 6.5, but after handling a couple of 20" rifles and seeing some Long Range targets I was more than satisfied at 20".

Thanks, you answered my question, it seems that for my end game the difference between 20 to 24” will not be an issue for me, I’m going for “handy”!

 

[Vwork]

You can not compare the MV from a Bolt Gun to an AR, the AR will always have slower MV

Thanks

 

[Vwork]

How the Hit % and recoil is effected by MV for a 1200 yard 12" target. It's a trade but just depends what you need.


6.5 - 147 ELDM - 2500 - 18% - Recoil Energy of 11.13 (ft.lbf)
6.5 - 147 ELDM - 2600 - 20% - Recoil Energy of 11.73 (ft.lbf)
6.5 - 147 ELDM - 2700 - 23% - Recoil Energy of 12.33 (ft.lbf)
6.5 - 147 ELDM - 2800 - 27% - Recoil Energy of 12.93 (ft.lbf)
6.5 - 147 ELDM - 2900 - 31% - Recoil Energy of 13.53 (ft.lbf)
6.5 - 147 ELDM - 3000 - 35% - Recoil Energy of 14.13 (ft.lbf)
6.5 - 147 ELDM - 3100 - 38% - Recoil Energy of 14.73 (ft.lbf)
6.5 - 147 ELDM - 3200 - 43% - Recoil Energy of 15.33 (ft.lbf)
6.5 - 147 ELDM - 3300 - 49% - Recoil Energy of 15.99 (ft.lbf)

Thanks

 

[hermosabeach]

for hunting, I prefer a longer barrel as the boom is further from your ears... If you have ever hunted duck, then you understand that the 12 gauge is not too loud... while an 18 1/2" barrel is ear splitting....

While hunting, hearing protection is not always 100% in place... so I would rather have a longer set up and no brake...

 

[Vwork]

for hunting, I prefer a longer barrel as the boom is further from your ears... If you have ever hunted duck, then you understand that the 12 gauge is not too loud... while an 18 1/2" barrel is ear splitting....

While hunting, hearing protection is not always 100% in place... so I would rather have a longer set up and no brake...

I agree with you on the duck hunting, I will run a suppressor on this gun. Thx