• The Shot You’ll Never Forget Giveaway - Enter To Win A Barrel From Rifle Barrel Blanks!

    Tell us about the best or most memorable shot you’ve ever taken. Contest ends June 13th and remember: subscribe for a better chance of winning!

    Join contest Subscribe

pole for the 300 bk and the 223, ?? to the hide

*greenhorn*

*greenhorn*

Full Member
Full Member
Minuteman
Aug 24, 2011
1,443
0
46
Daytona, Fl
#1
I pose a question, i am building new gas gun for 300-800 yrds, i was going to build a AR-10,(thank you to all the guys sending me pms for items for sale.) but got a killer deal on striped upper and lower, have quite a few parts for ar-15 laying round so im going to go AR-15 platform,

Here is the question witch i have added a pole too.2 parts

stay with the 223 or go with the 300 black out. ive done some searching and info is spratiac on this "new round" as the kids say with their honey buns and Mt. Dew "high"

the 308 is probly the perfect round for what im thinking of doing, my bolt gun works well in those ranges but im building a Gas Gun. i know i can shoot that in 223, but the light round. wind deflect and all that jazz.

2nd part. Why would you say what you say?
I know nothing about the 300, saw it for the 1st time about 3 months ago guy tied to sell me one when i was picking up brass for my bolt gun. I know what the 223 will do but like to here the "Pro's and Con's" Apparently all the 300 is from the 22s is the barrel, seance the barrel and gas block is all the parts i do not have or is not ordered id like to hear hat the hide has to say.
 
#3
Re: pole for the 300 bk and the 223, ?? to the hide

I love the blackout, that said if you want to shoot out to 800 the blackout will not do it. Ill agree with Force multiplier, go with the 223. The blackout will do well tp get to 500 yds. If you want a fun, short range, hard hitting round to shoot then the blackout is for you! Its all what you want to do with it. But hey, build one today & the other tomorrow! I have a 16" blackout now, getn parts for a 8" for tomorrow! Thats the best part about about the AR, once you have a lower you can have many different uppers to put on it!

+1 for the blackout... Not taking away from the 5.56.
 
#5
Re: pole for the 300 bk and the 223, ?? to the hide

The 300 Blk has roughly 7.62x39 trajectory, think AK out of an AR platform. I would do a 16 or 18 inch 5.56 in a MK12 mod 1 or MK 12 mod 0 configuration for the distances you want to shoot.
 
#6
Re: pole for the 300 bk and the 223, ?? to the hide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: krm375</div><div class="ubbcode-body">The 300 Blk has roughly 7.62x39 trajectory, think AK out of an AR platform. I would do a 16 or 18 inch 5.56 in a MK12 mod 1 or MK 12 mod 0 configuration for the distances you want to shoot. </div></div>

^^^ This; that's exactly what the Mk12 was designed to accomplish. I'd say go for the 18" barrel to maximize the potential at longer distances.
 
#8
Re: pole for the 300 bk and the 223, ?? to the hide

The 300BLK is a fantastic round this side of 300-400 yards. I voted 5.56, but I don't necessarily think that an AR platform will launch a .22 caliber 77 grain to 800 very well either. Just my $0.02
 
#9
Re: pole for the 300 bk and the 223, ?? to the hide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: nleaders</div><div class="ubbcode-body">The 300BLK is a fantastic round this side of 300-400 yards. I voted 5.56, but I don't necessarily think that an AR platform will launch a .22 caliber 77 grain to 800 very well either. Just my $0.02</div></div>

Cold bore on steel to 1000 yards today with 77 grain Match Kings with many more after the first round. Granted they are running out of ass well before that but they will do it.

That said, to the op. When ever I contemplate a new caliber I run published velocities with bullets I would use though JBM to see just how they can perform.

I am planing to build a 300 blk for mainly subs in the coming year and am thinking 300 yards would probably be the maximum range for that.
 
#10
Re: pole for the 300 bk and the 223, ?? to the hide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MitchinOR</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: nleaders</div><div class="ubbcode-body">The 300BLK is a fantastic round this side of 300-400 yards. I voted 5.56, but I don't necessarily think that an AR platform will launch a .22 caliber 77 grain to 800 very well either. Just my $0.02</div></div>

Cold bore on steel to 1000 yards today with 77 grain Match Kings with many more after the first round. Granted they are running out of ass well before that but they will do it.

That said, to the op. When ever I contemplate a new caliber I run published velocities with bullets I would use though JBM to see just how they can perform.

I am planing to build a 300 blk for mainly subs in the coming year and am thinking 300 yards would probably be the maximum range for that. </div></div>

I suppose what I meant was that it wouldn't be easy, and that there are better rounds from the AR platform for distance shooting (6.5 Grendel). Sure, you can do it, you proved it to us all, but accuracy past 600 with an AR type rifle 18" or less is difficult. I am not a terribly advanced shooter, and I will be the first to admit this, but I know good shooters who have a difficult time doing what you done!
 
#11
Re: pole for the 300 bk and the 223, ?? to the hide

Unless your goal is to shoot suppressed, I would not get into the 300 for that application. It wasn't designed for long distance distance shooting.
 
#12
Re: pole for the 300 bk and the 223, ?? to the hide

Few things to think about......
300 Blackout most effective 300 yds and under, yes you CAN make hits at longer range but not much energy in the bullet
5.56 will be effective out to 800 with heavy bullets,maybe try a Mk12 clone or even a SAM-R clone (has a 20" barrel)
AR10 style will get it done (308) but it's a different chassis and quite a bit heavier
You MAY want to look at an upper chambered in 30RemAR,fits on the AR15 lower and gives VERY impressive ballistics
DSC00672.jpg

30RemAR in center,6.5 Grendel on left,5.56 on right
DSC00668.jpg
 
#13
Re: pole for the 300 bk and the 223, ?? to the hide

good feed back, i think ill be staying with the 223 but keep the information coming do any of you have a 300 black out. i was told the 300 wispier and 300 black out the same is this true??
 
#15
Re: pole for the 300 bk and the 223, ?? to the hide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cowboy1978</div><div class="ubbcode-body">I pose a question, i am building new gas gun for 300-800 yrds, i was going to build a AR-10,(thank you to all the guys sending me pms for items for sale.) but got a killer deal on striped upper and lower, have quite a few parts for ar-15 laying round so im going to go AR-15 platform,

Here is the question witch i have added a pole too.2 parts

stay with the 223 or go with the 300 black out. ive done some searching and info is spratiac on this "new round" as the kids say with their honey buns and Mt. Dew "high"

the 308 is probly the perfect round for what im thinking of doing, my bolt gun works well in those ranges but im building a Gas Gun. i know i can shoot that in 223, but the light round. wind deflect and all that jazz.

2nd part. Why would you say what you say?
I know nothing about the 300, saw it for the 1st time about 3 months ago guy tied to sell me one when i was picking up brass for my bolt gun. I know what the 223 will do but like to here the "Pro's and Con's" Apparently all the 300 is from the 22s is the barrel, seance the barrel and gas block is all the parts i do not have or is not ordered id like to hear hat the hide has to say.
</div></div>

If you really want to shoot out to 800 yards and those are your only 2 choices, then the .223 is the way to go. An 8-twist or faster barrel with 75+ grain bullets will be capable of good accuracy to 600+ yards. 800+ is do-able, but certainly not ideal. The .223 is an approved cartridge for Palma competition, but the only guy I know who shoots it for that is using a 7 twist 32" barrel and Berger 80.5 full bore bullets. Not a gas gun. He does well with it, but that is more of a statement about him than the rifle.

The .300 blk is a ballistic turd. With a suppressor I'm sure it'd be great fun for short-range stuff, but without one it's basically a .30-30. Not enough powder capacity in a .223 case to get a .30 cal bullet going fast enough to be useful, in my opinion.

Have you thought about a 6.5 Grendel? It is far superior ballistically than either of your 2 choices and fits on a standard AR frame. Capable of good, reliable accuracy at 1000 yards. Brass and mags cost more but that's mostly a one-time expense. Alexander Arms has the brass on sale a couple of times per year for $55/100, which is pretty darn reasonable for Lapua(though stamped ALEX-A) brass.

If you just want so spend some money though, I'd suggest enrolling in a Remedial English class before you get into any of the other stuff. Seriously, my head hurt just trying to decipher what the heck you were trying to say in this post......

Good luck,
Erik
 
#17
Re: pole for the 300 bk and the 223, ?? to the hide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Exhogflyer</div><div class="ubbcode-body">300 Blackout most effective 300 yds and under, yes you CAN make hits at longer range but not much energy in the bullet
5.56 will be effective out to 800 with heavy bullets</div></div>

The range of 5.56mm is about 14% more than 300 BLK. Not 167% more as you seem to be saying.
 
#19
Re: pole for the 300 bk and the 223, ?? to the hide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cowboy1978</div><div class="ubbcode-body">i was told the 300 wispier and 300 black out the same is this true?? </div></div>

That depends. Do you consider 5.56mm and 223 to be the same?
 
#20
Re: pole for the 300 bk and the 223, ?? to the hide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: rsilvers</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cowboy1978</div><div class="ubbcode-body">i was told the 300 wispier and 300 black out the same is this true?? </div></div>

That depends. Do you consider 5.56mm and 223 to be the same? </div></div>

Yes
 
#21
Re: pole for the 300 bk and the 223, ?? to the hide

They are about as different as 5.56mm vs 223. Also 300 BLK is the SAAMI standard for 300-221 type cartridges.
 
#22
Re: pole for the 300 bk and the 223, ?? to the hide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: rsilvers</div><div class="ubbcode-body">300 BLK at 300 yards from a 9 inch barrel:
</div></div>

Hey there, I have a quick question for you. Was that done supersonic or subsonic? Also was it suppressed or not? It's hard to beat Barnes' expansion.
Thanks!
 
You must log in or register to reply here.

Similar threads

U
Seekins DMR in .223
Replies
10
Views
1K
mattman215
M
F
"Over Gassed" AR's Fact or Fiction? Other Perspectives
Replies
91
Views
3K
Ex E6
Ex E6
H
Thermal Coyote hunting round
Replies
72
Views
2K
Abey669
A
darkfader
300 Blackout AR Malfunctions
Replies
21
Views
826
TonyAngel
T
black5.3
Trending 6 ARC barrel manufacturers??
Replies
22
Views
2K
black5.3
black5.3
Top Bottom
Back
Home
Forums
Merch
Alerts