AR 300 BLK Barrel advice needed....

[garbhead]

Need some "been there-done that" comments on choosing a 300 BLK barrel....what brand and/or dealer to avoid or embrace.....First AR build....prob not ever subsonic/suppressed use...tips and tricks....all advice wanted..
Thanks in advance

[SharonAnne]

sorry, for my part I have no experience with the 300 BLK

[martineta]

Noveske or AAC barrels.  I have a Noveske barrel.  1 in 7 inch twist will shoot 110 and 125 grain bullets accurately all day long and is the right twist should you decide down the road to start shooting subs.  If you ended up selling the barrel after a while, you will have a line to your door to buy either of those makes of barrel since it's 1 in 7 twist and the companies that made them are top knotch.

[garbhead]

Thanks...didn't realize the 1:7 would shoot the smaller ones accurately.....I'll prob never shoot sub or suppressed so 1:8 or 1:10 prob work better for me, but may investigate the 1:7

[SHOOTALL]

The 1 in 7 twist is good , shoot 115 gr bullets or 208 gr bullets. It's an interesting round but with heavy bullets you are restricted to room for powder. In a bolt gun no problem but in an AR you will need to find a load that will work your action .
 With the lack of powders on the shelf and same for bullets it has been hard to try a lot of loads. As example with Nosler 200 gr. bullets ( I have no printed load so I use a different bullet load  reduce and work up) I can't get min. powder (A1680) loads in the case and seat bullet deep enough to chamber in a Rem 700. I hope H110 will work when some come around. In an AR it would be more critical. Drop back to subsonic and it works.
 Factory loads come in sub and super sonic $20 - 25 a box of 20. Both BO and whisper are hard to find here and when you do you are allowed 2 boxes.
 I only point that out because it might be hard to load of find the ammo you want and the faster rate lest you have more selection.
 As for the round , its nice It's everything the 30 carbine should have been.

[martineta]

Just to clarify.  The subsonics require a little tweaking of loads to cycle the action of an AR.
Supersonics are a piece of cake.  I shoot 18 grs. of H110 and 125 gr Nosler Ballistic Tips.  Shoots 2100 fps and drops deer like a hammer.  I started shooting 300 whispers 12 years ago and bought a 300 blackout Noveske last summer.  Killed piles of deer with supersonic and subs.  Hit them in the chest and they die.  So far no crips of run offs. 

[SHOOTALL]

I'll try that load but with a different bullet Sierria 125's . The A 1680 shoots sub's good in the 700. My point was if you have a choice in this day and time get what gives you more choices of components 

[SHOOTALL]

How far out is that load good for ?

[martineta]

I have shot piles of deer up close less than 75 yds with both supers and subs.  Fartherest with super is 200 yds and last fall I shot a doe at 185 with a subsonic 220 gr outlaw state bullet. I hunt from tree stands in the hills of VA.  Not many opportunities for long shots. 95% of my lifetime of deer kills has been under 50 yds.
I load supersonic with H110.  Loaded subsonic with Viht N110 which works well for me.  I looked and looked everywhere for Accurate 1680 powder and finally found some in a store here and was able to buy two pounds. The Accurate 1680 is supposed to be the cat's meow for loading Subsonics.  H110 is done me well for 12 years loading supersonic. 

[SHOOTALL]

I hunt central Va. and most shots are 50 yards or under also. I found some A1680 ca couple weeks ago in a hardware store in a small town. I loaded some sub and some super . Had to use Nosler 200 gr bullets. First loads I have tried they shot but chambered hard , had to force bolt handle down. The sub were easier so it seems the compressed load in the super sonic load won't compress enough to allow easy chambering . Also tried some 110  with 1680 they were fine. I can seat the subsonic loads deeper in the case which should work well. I did find some 208 Hornady loads for the 300 Whisper and the bullet has a slimmer taper  why they chamber easier . I'm more interested in subsonic loads as I want to hunt with a suppressor some but still want a good supersonic load .

[SHOOTALL]

I have shot piles of deer up close less than 75 yds with both supers and subs.  Fartherest with super is 200 yds and last fall I shot a doe at 185 with a subsonic 220 gr outlaw state bullet. I hunt from tree stands in the hills of VA.  Not many opportunities for long shots. 95% of my lifetime of deer kills has been under 50 yds.
I load supersonic with H110.  Loaded subsonic with Viht N110 which works well for me.  I looked and looked everywhere for Accurate 1680 powder and finally found some in a store here and was able to buy two pounds. The Accurate 1680 is supposed to be the cat's meow for loading Subsonics.  H110 is done me well for 12 years loading supersonic.

 BTW , BEVILES Hardware in Blackstone Va, ( near Fort Pickett ) has one more pound of A 1680 on the shelf. Don't know how close you are.

[martineta]

Thanks Shootall

[SHOOTALL]

Update , the sub load I tried with A1680 , Nosler Accurate bond 200 gr bullets and Rem BR primers key hole at 100 yards. The same bullet at supersonic did also. I had a time with OAL. these bullets when seated so they will chamber are very short compared to factory loaded 208 gr. Hornady bullets. 110 gr were fine . Will try to find a different bullet. That has been the problem I mentioned finding correct components for load data aval.

[martineta]

I hunt subsonic with Outlaw State Bullets 220 gr subsonic expanding spitzer.  I use 8.9 grs of Viht N110 powder and CCI 400 small rifle primers, COL is 2.120 inches.  Loads perfect in AR pmags.
  I discovered these bullets several years ago.  Shot better than 20 deer with them.  They do as advertised, expand at subsonic velocity!  The owner Paul Woodward is a great guy hand making his bullets in his shop in Missouri. 

[SHOOTALL]

Thanks

[Graybeard]

Let's bring this one back up and see if folks might want to talk more about it.