thanks for this thread, as usual. really interesting. I only have 300AAC not the 6.8. I was going to get one during the 2013 crap from Primary Weapons Systems. But the cost of the rounds was high so I got the Wylde 16" mk116 Mod1 long stroke piston. Love it. All the rest and my 300's are DI. My avatar is a PWS pic of mine.
6.8 SPC vs .300 Blackout
- Thread starter asdaven
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It has not produced the BEST accuracy for my 300BLK, but I use the same 147 fmj for 300BLK as I do for 308 and 30-06 for simple plinking steel at 100 yards. 110gr has seemed to be a bit more accurate.
Of all the rifles, other than 223, I do reload/shoot alot of 30-06 so get 147 in orders of 1000 at a time. 300blk bullets cost more but use less powder than 223 so I tend to shoot more 223 from the AR and the 300blk is a bit of a novelty for me.
Of all the rifles, other than 223, I do reload/shoot alot of 30-06 so get 147 in orders of 1000 at a time. 300blk bullets cost more but use less powder than 223 so I tend to shoot more 223 from the AR and the 300blk is a bit of a novelty for me.
Can .300 Blackout be loaded with the 123 grain bullets used for 7.62x39 in the AK?
jimbobborg
Oddball caliber fan
True. Silver State Armory makes hotter loads. I reload it, I get over 2700 fps with 110gr Accubonds.
GunBum
Active Member
I think the .308 diameter bullets are 125 grain. Thats probably what I would shoot in 300 Blackout if not going subsonic. Since im trying to get something that shoots similar to a 7.62x39.
Looks like a lot of people like either the 6.5 Grendal or the .300 BLK. Not much love for the 6.8 SPC.
Does 6.5 Grendal have any cheap ammo options other than Steel cased? Typically dont shoot steel cased in anything except Com-Block guns.
Russian 7.62 bullets is often more like .310
Generally, I"ve found Russian ammo to have more variation than US available reloading components.
Sometimes I"ve measured pulled PPU 7.62x39 as .309 or even .308
I have not reloaded 7.62x39 but lots of 7.62x54r. Putting .308 bullets in it yields poor accuracy. Just a few thousandths is very noticeable
Sirex
Powered by natural gas
I have both 6.5G and 7.62x39 uppers, and I absolutely love the 7.62x39. I haven't much experience with the 6.5G, but if you are looking for 200 yards and below, the 7.62x39 is great for just blasting away. Initially I had issues shooting shooting steel cased Russian ammo, just getting it to ignite. Got light strikes, but put in an enhanced firing pin and seems to have done the job. Mags can be a bit of an issue, but I have some 20rd ASC and either 28 or 30rd CPD mags which run fine. Unfortunately for me in MD, the 10rd CPD mags didn't work very well at all. But I absolutely love shooting 7.62x39, and thru an AR it has been very accurate for me. More so than any other rifle in that caliber. PPU makes brass cased ammo, and the steel cased stuff is cheap enough just for blasting away. But, if you are only shooting 200yds, and only want to shoot brass ammo, I would have to think .300 is the way to go. Just get a .300 upper, not have to worry about mags. Just be sure not to accidentally fire a .300 theu the 5.56 upper. I replaced my ejection port covers with ones labeled for the caliber. I can't imagine brass cased .300 being horribly more expensive than brass 7.62x39.
Taco
Member
I’ve also had great luck with my 7.62x39 upper. I’ve never had a failure of any kind. Ever. I use an extended firing pin and CPD magazines (10 and 30 rounders). It’s a blast to shoot and surprisingly accurate with cheap steel case ammo. I wouldn’t disregard the 7.62x39 as an option.
Jerry M
Ultimate Member
It is really going to depend on what you are going to do with it. Since you said you weren't going to use a suppressor, why consider the round developed for a suppressor? A few things to consider. The following data is all from http://www.hodgdonreloading.com/
For comparison:
for a baseline high and low (not AR-15 Comparable) 30-30, 170 grain, max speed 2,332 FPS; .357 Magnum 170 grain, max speed 1,662 FPS;
.300 Blackout 168 grain, max speed 1,887 FPS;
.350 Legend 170 grain, max speed 2,307 FPS;
7.62X39 150 grain, max speed 2,471 FPS;
6.8 Remington 115 grain, max speed 2,647 FPS;
6.5 Grendel 123 grain, max speed 2,508 FPS;
Personally, if you are looking for a 200 yard rifle i would consider trying some 77 grain SMKs in your .223 Rem. Unless you are hunting then I would pick the grendel.
Good luck
Jerry
For comparison:
for a baseline high and low (not AR-15 Comparable) 30-30, 170 grain, max speed 2,332 FPS; .357 Magnum 170 grain, max speed 1,662 FPS;
.300 Blackout 168 grain, max speed 1,887 FPS;
.350 Legend 170 grain, max speed 2,307 FPS;
7.62X39 150 grain, max speed 2,471 FPS;
6.8 Remington 115 grain, max speed 2,647 FPS;
6.5 Grendel 123 grain, max speed 2,508 FPS;
Personally, if you are looking for a 200 yard rifle i would consider trying some 77 grain SMKs in your .223 Rem. Unless you are hunting then I would pick the grendel.
Good luck
Jerry
Alphawaves
Member
I was considering this same thing before. After understanding that the 300 blackout is designed to be used with a suppressor. I chose the 6.8SPC. I'm very happy with it too.
engineerbrian
JMB fan club
Great choice
Alphawaves
Member
johnkn
Ultimate Member
- Feb 27, 2012
- 2,150
What are (were) typical wait times to be approved for a SBR and can? I started the process ~20 years ago and gave up after waiting months. How about travel restrictions with a SBR and can? Can I throw it in my truck and cross state lines? Sorry for the questions, been away for this for a long time but am also thinking about a 300BO. Thanks
DaemonAssassin
Why should we Free BSD?
SBR's are generally approved in about 30 days, if you file electronically. If you electronically file a Form 1 for a can, then it will come back in about 30 days.
If you wish to travel over state lines with a SBR, you need to fill out a form and send it to the ATF and it is valid for 1 calendar year. You do not need to fill out the form to cross state lines with a can.
johnkn
Ultimate Member
- Feb 27, 2012
- 2,150
Thank u sir
ironhead7544
Active Member
- Oct 27, 2018
- 188
Wolf will be selling 300 Blackout in 147 gr fmj and a heavier subsonic load soon. Will probably be $200.00 a thousand.
The Speer Gold Dot 150 gr Blackout bullet can be pushed out to 2150 fps from a 16 in barrel. There are a number of 300 Blackout factory loads that are good for hunting out to 200 yards.
The 125 gr bullets designed for the 300 Blackout can be loaded to very near 7.62x39 velocities. As a handloader, I like the 300 Blackout as I get free pickup brass at the range. It is simple to convert the proper 223/5.56 brass to 300 Blackout.
If you do not handload, I think the best way to go is the Ruger Ranch Rifle in 7.62x39. It uses Mini 30 magazines. Cheap ammo for practice. Good hunting ammo available. I have one of these in 300 Blackout and it works fine. I like the idea of the AR-15 in 7.62x39 but you can have bolt and magazine problems. If you must have one of these, there is one made with a larger bolt and also takes AK magazines.
I have no experience with the 6.5 or 6.8. Either should be fine. Check ammo cost.
The Speer Gold Dot 150 gr Blackout bullet can be pushed out to 2150 fps from a 16 in barrel. There are a number of 300 Blackout factory loads that are good for hunting out to 200 yards.
The 125 gr bullets designed for the 300 Blackout can be loaded to very near 7.62x39 velocities. As a handloader, I like the 300 Blackout as I get free pickup brass at the range. It is simple to convert the proper 223/5.56 brass to 300 Blackout.
If you do not handload, I think the best way to go is the Ruger Ranch Rifle in 7.62x39. It uses Mini 30 magazines. Cheap ammo for practice. Good hunting ammo available. I have one of these in 300 Blackout and it works fine. I like the idea of the AR-15 in 7.62x39 but you can have bolt and magazine problems. If you must have one of these, there is one made with a larger bolt and also takes AK magazines.
I have no experience with the 6.5 or 6.8. Either should be fine. Check ammo cost.
- May 5, 2010
- 6,588
Don't hold your breath
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