[45tactical]

In trying to determine new toy barrel length, I was curious if the suppressor is equal to a barrel for loss/non loss of velocity.

Does a 7" barrel with a 7" suppressor produce the same results as a 14" unsuppressed barrel?

Does a 16" barrel now have the characteristics of a 22" barrel if 6" suppressor is added?

I realize no twist in seppressor, so accuracy is not the same as full barrel.

Thanks

 

[Big Vick]

Does a 7" barrel with a 7" suppressor produce the same results as a 14" unsuppressed barrel?

No. Once the bullet leaves the barrel the gas behind it is expanding into the suppressor body and won't be pushing your projectile any faster.

 

[Talhoffer]

Free bore boost, that's basically what your asking about.

Short answer No, not really.

From what I have read and even chronoed you only see a small if any increase in velocity. My results on the chrono has been under 20fps to nothing over several different rifles, calibers, and bullet weights. I fall on the side of it does not increase it enough to validate the idea. I have seen a suppressor increase the accuracy of a rifle and I have seen others decrease some rifles accuracy, that has to do more with how it aids or disrupts the barrels harmonics.


This is a link to a "free bore boost"
Freebore Boost Effects | EmptorMaven

 

[SONYtec]

Interesting.

 

[Jeremy M.]

This is a link to a "free bore boost"
Freebore Boost Effects | EmptorMaven

Good link there. I'm going to steal that for Facebook. I think the important take away is that it could increase velocity but it will not reduce velocity which a lot of people is the case.