7.5" to 10" SBR - Barrel Life Expectancy?

[0ne5hot]

With the 300blk you only need a 556 barrel to switch back.

[jdonovan]

Anyone know if such a creature exists? Something that looks like a .45 SBR, but is a pistol? Is that something I should build?

could allways look into a mectec. Glock carbine kit.
The Kriss vector is an option as well.


now I'll throw you another reevaluate everything option.

Short, high energy, rifle.
hows about a 10 or 12.5" 458 socom?
parts available here. http://www.tromix.com/socom-parts.htm

When a 5.56 dreams it hopes to expand to .45 cal... why not start there? In longer barrels it essentially gets you into 45-70 level power in an AR platform. I've got on in the 16" flavor, and its very impressive.

[MarcSpaz]

I checked out the Vector before. That is one nice piece of hardware.

That 458 is wild, isn't it? Now you're just trying to get my head spun around.

I have seen them before. I have never seen the ammo for sale at any gun store I have ever been to though. That's part of the reason I have stayed away from them in general. Well, that... and it's major overkill for in the house. LOL shoot through 4 rooms worth of walls and kill my neighbor by mistake.

With the 300blk you only need a 556 barrel to switch back.

I thought about that before. Just register my M4 as an SBR and have two uppers. But most of the cost is in the upper. I would rather spend the extra money and have a complete riffle.

[jdonovan]

I checked out the Vector before. That is one nice piece of hardware.

That 458 is wild, isn't it? Now you're just trying to get my head spun around.

nope, there is commercial ammo, its been submitted to SAMMI tho I haven't seen it get accepted/published yet.

I have seen them before. I have never seen the ammo for sale at any gun store I have ever been to though. That's part of the reason I have stayed away from them in general.

18 months ago you could have said the sam of 300 blk too.

Well, that... and it's major overkill for in the house. LOL shoot through 4 rooms worth of walls and kill my neighbor by mistake.

unless you run frangible, your 5.56, or .45 will do that too.. well perhaps not quite 4 rooms, but 4-6 sheets are drywall isn't much resistance to a bullet.

[0ne5hot]

I love my 458 socom...HAMMER TIME
http://vagunforum.net/your-hardware/hom ... 20277.html
The bubble has burst and supply/demand is back within reasonable levels, ammo prices are is starting to be come normal again.

[bryanrheem]

Build a 300 blk upper and start reloading. That's my plan… in fact, I'm attending the NRA reloading class this Saturday in Centreville!

[jdonovan]

That's my plan… in fact, I'm attending the NRA reloading class this Saturday in Centreville!

Cool, I'll see ya there! I'll be one of the instructors for the class.

[dorminWS]

45-70 level power in an AR platform? How about this?

http://www.alexanderarms.com/products/50-beowulf

http://www.gunsandammo.com/2011/07/14/w ... -good-for/

[0ne5hot]

45-70 level power in an AR platform? How about this?

http://www.alexanderarms.com/products/50-beowulf

http://www.gunsandammo.com/2011/07/14/w ... -good-for/

My dad got himself a 50 Beowulf to one up me and my 458 Socom. That thing is a beast, the recoil is crazy mostly because he is still using the standard 556 buffer (3.2oz) and buffer spring. I moved up to a 12.0oz buffer using the standard buffer spring it works well at reducing recoil and slows down the bolt carrier a bit which helps with feeding ammo from older 556 mags. Still you can't go wrong with a Fifty...

[dorminWS]

45-70 level power in an AR platform? How about this?

http://www.alexanderarms.com/products/50-beowulf

http://www.gunsandammo.com/2011/07/14/w ... -good-for/

My dad got himself a 50 Beowulf to one up me and my 458 Socom. That thing is a beast, the recoil is crazy mostly because he is still using the standard 556 buffer (3.2oz) and buffer spring. I moved up to a 12.0oz buffer using the standard buffer spring it works well at reducing recoil and slows down the bolt carrier a bit which helps with feeding ammo from older 556 mags. Still you can't go wrong with a Fifty...

>>>>>>>>>>>>>>>>>>>>>>>

Yep. The recoil is pretty heavy. Worse than a 10-gauge pump shotgun.

[MarcSpaz]

Wow, its purdy! I want one!

I need more money though.

[jdonovan]

45-70 level power in an AR platform? How about this?

http://www.alexanderarms.com/products/50-beowulf/

Selection of .50 jacketed projectiles are less of a selection I'd like.

Needs modified magazines/follower

plusses for the 458 socom.

.458 rifle bullets, lots of choices from 250gr-600gr
Standard AR mags, and followers, no mods needed.


Both cartridges get you into the high-energy category, I just felt the 458 gave me better options. Plus all my ar-15 mags are now 'standard capacity' 10 round mags.

[0ne5hot]

There are some 100gr .458 hollowpoints...

http://458socomforums.com/index.php?topic=707.0

[jdonovan]

leigh has some very interesting projectiles, for a variety of applications.

[TallEd]

I had looked at both of those about 2 years ago, but liked the 450 Bushmaster better. I have not been able to find one since though. Similar to either out to 100 yards, but better at longer ranges.

[scrubber3]

10.3 is the shortest length you can go and still be effective out past CQB distances. That's why the MK18 is the length it is. A barrels length has nothing to do with longevity or barrel erosion. 5.56 is ideal for home defense because it is so fast and the bullet so light that it has a tendency to lose lethality upon contact with a wall. This is why SBRs are becoming the norm for CQB engagements in MIL and LE.

I recommend a Daniel Defense MK18 upper paired with a good quality lower. As already stated the Sig arm brace is a good choice to avoid getting put on list, having to wait 8 months, and spending $200 more dollars.

[bryanrheem]

Cool, I'll see ya there! I'll be one of the instructors for the class.

Sweet! The email I received talked about range time, but I'm assuming this is strictly a classroom setting, correct?

[jdonovan]

100% classroom. No range time.