22" to 18" .223 velocity loss?

[boltfluter]

Considering cutting my .223 down to accommodate my suppressor length. Any idea on velocity loss with 62 to 75 grain bullets? Thanks guys.

Paul

 

[Doug Beach]

Should be very close to 100 fps. If the 22” is unsuppressed, you’ll pick some of that lost velocity back up with the suppressor on the 18”.

 

[boltfluter]

Should be very close to 100 fps. If the 22” is unsuppressed, you’ll pick some of that lost velocity back up with the suppressor on the 18”.

Thanks Doug, I think I can live with that. The convenience of having a much handier compact rifle will be worth the trade off. Especially when the squirrels are charging!!
Paul

 

[lb-ft]

223 Remington/ 5.56mm NATO barrel length and velocity: 26 inches to 6 inches

Have you ever wondered how much barrel length effects muzzle velocity on your rifle? Well I did, so I cut up rifles chambered in 223 Remington, 308 Winchester, 7 mm Remington Magnum and 300 Winche…

rifleshooter.com

Excellent resource right here

 

[SecondsCount]

The suppressor might give you a little velocity back. A different powder might also help.

 

[clowdis]

OK, I have to bite here. Explain (in engineering terms) just how a suppressor speeds up a bullet.

 

[WSnyder]

OK, I have to bite here. Explain (in engineering terms) just how a suppressor speeds up a bullet.

The idea is they add barrel length. The gains are marginal. 10-15fps.

 

[boltfluter]

The idea is they add barrel length. The gains are marginal. 10-15fps.

This is very true. Usually about 15 fps. The gases are still contained within the suppressor so there is still a little pressure behind the bullet for the 6 inches of suppressor length.
Paul

 

[Carl S]

I cut quite a few down to 16inch for fox shooters and gamekeepers who tend to shoot alot from a vehicle and need a suppressed short rifle.