SBR worth it...???

BayouBocephus · Mar 9, 2009

I have been wanting to make my AR into an SBR but after reading the Sticky http://bayoushooter.com/forums/showthread.php?t=3920 by Pangris in the Rifle forum I started to wonder is it really worth it?

BayouBocephus · Mar 9, 2009

Can nobody convince me to make my rifle into an SBR?!?

Landry308 · Mar 9, 2009

Do it. It's alot of fun. Very portable. With the right ammo very effective. If you get a silencer, you still have the same length as a 16" barreled gun. I should be posting some pics soon.

BayouBocephus · Mar 10, 2009

For an SBR, would I have to get a different twist rate barrel to make ammo more effective at a longer range with a shorter barrel?

Landry308 · Mar 10, 2009

Maybe if you're going to use FMJ. Then it would depend on the weight. I'd say 1x9 if you're going to shoot 69gr on down only. You want the bullet to de-stabilize when it hits, so it'll tumble. If you're going to use soft points, it won't matter much. Mine has 1x7 twist and it shoots all weights well.

BayouBocephus · Mar 10, 2009

I have a 1x9 but what would be the successful fragmentation range...I'd like to be able to use my weapon successfully beyond 50 yds

aroundlsu · Mar 10, 2009

If you accept the sbr as a close range weapon, perhaps as a replacement for a pistol caliber subgun, you will be happy with it. The only thing about my 9.25" is its obnoxiously loud. A silencer is a must.

BayouBocephus · Mar 10, 2009

I guess I could always use my hunting rifle out to longer ranges if SHTF..

JadeRaven · Mar 10, 2009

Landry308 said:
Do it. It's alot of fun. Very portable. With the right ammo very effective. If you get a silencer, you still have the same length as a 16" barreled gun. I should be posting some pics soon.

Does a silencer extend effective range (by lengthening the barrel)?

Or does it hamper it?

Just wondering

BayouBocephus · Mar 10, 2009

JadeRaven said:
Does a silencer extend effective range (by lengthening the barrel)?

Or does it hamper it?

Just wondering

good question....+1

aroundlsu · Mar 10, 2009

It does neither. Bullet velocity is the same with/without. It may change the point of impact since hanging a one pound weight on the end of your bbl tends to change the harmonics. Mine seems to shoot the same with/without but I don't generally open it up past 100 yards.

BayouBocephus · Mar 10, 2009

In a short barrel(10.5), what type of ammo could I use to have a successful impact and fragmentation at 50 yds?

aroundlsu · Mar 10, 2009

I have no idea. If you ask me I'll say the type that goes bang! I load up with the cheapest ammo I can find. Bullet placement is far more important than all that other BS.

But if you really want to know, why don't we set up some ballistics gelatin Mythbusters style and find out? We can set it up at Sherburne range. I'll provide the weapons, ammo, and video camera if someone else can make a block of ballistics gelatin. 100% serious.

BayouBocephus · Mar 10, 2009

That would be cool if I knew how to make a block of ballistic gel...I guess Im gonna make my SBR asap!!

Richard in LA · Mar 10, 2009

aroundlsu said:
I have no idea. If you ask me I'll say the type that goes bang! I load up with the cheapest ammo I can find. Bullet placement is far more important than all that other BS.

But if you really want to know, why don't we set up some ballistics gelatin Mythbusters style and find out? We can set it up at Sherburne range. I'll provide the weapons, ammo, and video camera if someone else can make a block of ballistics gelatin. 100% serious.

I want in on this. My 11.5" barrel should be here *any day now*

Anyone got a link to some cheap ballistic gelatin? I thought that stuff was kinda expensive?

Landry308 · Mar 10, 2009

BayouBocephus said:
In a short barrel(10.5), what type of ammo could I use to have a successful impact and fragmentation at 50 yds?

Here is part of a post I made on another thread, may help you:

The question is if the 5.56 is adequate for our (civillian) use. Of course it is. Who said we were restricted to the projectiles that the military uses ? Load the 5.56 with one of the following: Win 64gr SP "deer bullet", Sierra 65gr SPBT, Hornady 70gr PSP, any Barnes X bullet, etc, etc, etc. Now it's not so ineffective. Any of these will cleanly take out a deer with decent shot placement. Will do the same on people.

If you don't handload, any 55gr SP should do fine out of 10.5" gun. MV should be about 2700-2800. That should give you effective range of 150-200 yds.

BayouBocephus · Mar 10, 2009

Landry308 said:
Here is part of a post I made on another thread, may help you:

The question is if the 5.56 is adequate for our (civillian) use. Of course it is. Who said we were restricted to the projectiles that the military uses ? Load the 5.56 with one of the following: Win 64gr SP "deer bullet", Sierra 65gr SPBT, Hornady 70gr PSP, any Barnes X bullet, etc, etc, etc. Now it's not so ineffective. Any of these will cleanly take out a deer with decent shot placement. Will do the same on people.

If you don't handload, any 55gr SP should do fine out of 10.5" gun. MV should be about 2700-2800. That should give you effective range of 150-200 yds.

That is the exact ~~excuse~~ info I was looking for...thanx

Landry308 · Mar 10, 2009

De nada

aroundlsu · Mar 10, 2009

Richard in LA said:
I want in on this. My 11.5" barrel should be here *any day now*

Anyone got a link to some cheap ballistic gelatin? I thought that stuff was kinda expensive?

I don't have the patience to read all this right now but it sure looks like a recipe to me!

http://en.wikipedia.org/wiki/Ballistic_gelatin

I've been watching Mythbusters a lot lately. They pour it in a mold, let it sit in a frig overnight. Then boom. Sometimes they even suspend bones and things in the gelatin. They also sometimes use dead pigs for ballistics testing but I think it might be hard to get someone to volunteer a dead pig.

Landry308 · Mar 10, 2009

A box full of dead nutrias works well, but gets messy

SBR worth it...???

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