What other caliber to SBR?

Moderators: gds, bakerjw, renegade

realtreehunter
Silent But Deadly
Posts: 190
Joined: Wed May 22, 2013 3:01 pm

What other caliber to SBR?

Post by realtreehunter » Tue Jun 21, 2016 11:27 pm

I picked up an extra lower yesterday because I have been wanting a spare and with the thought that what the heck, better go ahead in just case. Now I'm thinking Id like to go ahead and SBR it. My issue is what caliber? I already have a form submitted for a 300BLK and don't know that I want another one, I want my next BLK to be a bolt gun. What other calibers are make fun/useful SBRs? To SBR the BLK was a no brainer but with other calibers, the short barrel seems counterproductive. This would mostly be a home defense/close range hunter. In 16" guns I already have a 458 socom, another 300BLK, a 556, and then a 24" rra varmint with plans for a dpms g2 hunter or SASS(the SASS depends on auction prices :lol: ). I feel like I have things pretty well covered but with the whole 41f thing upon us I have the bug to build one more. This would most likely sit a while but i'm thinking of going on and doing it while its easier.

BulletFlight for Android
Alphawolf082
Silent But Deadly
Posts: 267
Joined: Sun Apr 06, 2014 10:30 pm

Re: What other caliber to SBR?

Post by Alphawolf082 » Wed Jun 22, 2016 12:05 am

I have a 10.5" 5.56 gun that is actually a lot of fun. Hand loads which run 2855 fps in my 16" are doing 2525 fps unsuppressed and 2695 fps suppressed from it, so not as bad as I thought (and the can added MUCH more than I expected).

IMGrunt
Silent But Deadly
Posts: 393
Joined: Mon Jan 27, 2014 9:48 pm
Location: Colorado

Re: What other caliber to SBR?

Post by IMGrunt » Wed Jun 22, 2016 12:19 am

9mm is a good project and great fun to shoot. 147gr subsonic loads.
"There are only two kinds of people that understand Marines: Marines and the enemy. Everyone else has a second-hand opinion." -- Gen. William Thornson, U.S. Army

rimshaker
Silent But Deadly
Posts: 474
Joined: Sun Nov 25, 2012 2:32 am
Location: FL

Re: What other caliber to SBR?

Post by rimshaker » Wed Jun 22, 2016 1:46 am

If the lower is already stamped 5.56 then just put that on the Form 1. If it's stamped Multi Cal, then put 5.56 anyway since that's the most common.

You can swap barrel lengths and calibers all you want once approved. The most important thing is to get that serial# registered, and start the process well ahead of July 13.

golfindia
Silent But Deadly
Posts: 1366
Joined: Thu Jun 20, 2013 1:16 pm

Re: What other caliber to SBR?

Post by golfindia » Wed Jun 22, 2016 5:29 am

6.8 SPC.

DoubleJ
Silent But Deadly
Posts: 1045
Joined: Tue Jun 03, 2014 1:51 pm

Re: What other caliber to SBR?

Post by DoubleJ » Wed Jun 22, 2016 7:53 am

.458 SOCOM is pretty efficient in 12" barrel lengths due to the large bore and fast powders used. +1 for 9mm, also efficient and way cheap to shoot.
I do not reply to posts with horrific grammar errors.

I do not reply to posts concerning the case mouth dent.

TMD
Silent But Deadly
Posts: 1464
Joined: Mon Oct 08, 2012 10:35 am
Location: San Angelo, TX

Re: What other caliber to SBR?

Post by TMD » Wed Jun 22, 2016 8:11 am

DoubleJ wrote:.458 SOCOM is pretty efficient in 12" barrel lengths due to the large bore and fast powders used. +1 for 9mm, also efficient and way cheap to shoot.

But quite a bit more $ to build.

User avatar
tXr
Silent But Deadly
Posts: 1301
Joined: Thu Oct 16, 2014 10:59 am
Location: Behind Enemy Lines!

Re: What other caliber to SBR?

Post by tXr » Wed Jun 22, 2016 8:46 am

Tromix's 375SOCOM, commonality with some 458SOCOM reloading components.
The only trustworthy Bolshevik is the Bolshevik taking a dirt nap

User avatar
wildfowler
Silent But Deadly
Posts: 702
Joined: Sun Mar 30, 2008 8:40 am
Location: Mis'sippi

Re: What other caliber to SBR?

Post by wildfowler » Wed Jun 22, 2016 9:23 am

IMGrunt wrote:9mm is a good project and great fun to shoot. 147gr subsonic loads.

What he said.
driven every kind of rig that's ever been made, driven the backroads so I wouldn't get weighed. - Lowell George

User avatar
idaho.jon
Silent But Deadly
Posts: 439
Joined: Tue Oct 21, 2014 10:47 pm
Location: Idaho

Re: What other caliber to SBR?

Post by idaho.jon » Wed Jun 22, 2016 9:52 am

I love my 9mm ar pistol, but mostly because it takes glock mags haha. I've always thought a Grendel would be fun in a 10-12" barrel.

Post Reply