More crap I don't need - 8.6 Blackout edition.
- Thread starter LVLAaron
- Start date
1:3? was it rifled with a tap?
Ive heard rumors electronics malfunction when bullets spin that fast, time slows....ect. Good luck with that.
I have 338 projos on the shelf, the appeal of a subsonic 338 is real. I was leaning 338 federal.
I have 338 projos on the shelf, the appeal of a subsonic 338 is real. I was leaning 338 federal.
LVLAaron
Gold $$ Contributor
The RPM's are a real problem, imo. Your're limited to subsonic heavies, or solid projectiles for supersonic use.
I got this barrel because it was in stock ready to ship... I also ordered a 6.5 twist but that'll take months to get. But it should be a little more forgiving.
I'm really not looking forward to tapering that barrel.
Maybe look into something fin stabilized?
LVLAaron
Gold $$ Contributor
1050 with a 300 grain
The part of the video where he is shooting it is boring. The ballistics gel test is pretty interesting though. .
.8.6 Blackout at the Range
.8.6 Blackout at the Range
DShortt
Gold $$ Contributor
So a 3 twist is going to be overstabilized considering the bullet weight.
jelenko
Gold $$ Contributor
At 1050 fps, the rpm is 252,000.
My new favorite cartridge. I have a couple of these and just got a remage 12" barrel to build a bolt action.
Have you worked up any loads yet Aaron? I have a fair amount of Gorilla 285 grain fracturing bullets for subs, but plan to hunt with supers mostly. Working out a load between either Barnes 210 grain TTSXs and Hornady 225 grain CXs.
Be careful if you're not neck turning. After you resize the neck is ok, but once seating a bullet some cases (Hornady in my case, for lack of a better analogy, about 50% would pass. I had a problem with this and have since changed my brass to Gorilla which I believe is made by Starline.
Is there anything this cartridge is not capable of taking down?
Have you worked up any loads yet Aaron? I have a fair amount of Gorilla 285 grain fracturing bullets for subs, but plan to hunt with supers mostly. Working out a load between either Barnes 210 grain TTSXs and Hornady 225 grain CXs.
Be careful if you're not neck turning. After you resize the neck is ok, but once seating a bullet some cases (Hornady in my case, for lack of a better analogy, about 50% would pass. I had a problem with this and have since changed my brass to Gorilla which I believe is made by Starline.
Is there anything this cartridge is not capable of taking down?
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It looks like it when you look down one of the barrels.
paperpuncher
Gold $$ Contributor
I understand the title of this thread completely. I did a subsonic 50 cal kinda like a 510 whisper but did mine on 338 norma brass with a small neck to hold the bullets I used an 8 twist and have shot up to 750 grain bullets with good results. Still have not gotten a suppressor for it. BTW I concur turning barrels sucks
Since there's some interest in 338 subs. These were bought for a project that didn't get funded.
SELLING - Bartlein 338 barrel blanks
Qty 2 338 barrels with special dimensions and twist rate Specs are .3322" bore/.3383" groove per inspection report 1-6 twist conventional 5 groove rifling blanks are 1.250" X 32" Price $ 450 each shipped
forum.accurateshooter.com
The Hornady brass has been used by the majority of folks loading 8.6bo, but I will caution you as I did above...once you resize it, the neck is right on the edge of not fitting the gauge.
IMO, this is one of the most exciting cartridges for hunting that has come along in quite a while. Will it be a paradign shift? Hard to tell, but it has a lot going for it.
I have 3 cartridges I plan to hunt pig/deer/bear with. 300bo, 6.5 Grendel and 8.6bo.
Those 300g SMKs are known to be good subs. I have 2 boxes sitting on my bench. But I also have a lot of 285 Gorilla projectiles to use and those would be preferable for hunting. I don't see a lot of advantage in using subsonics for hunting, in my case at least. I currently can't use a supressor, although that can change as it's being tossed around in the courts. But currently I can't use a supressor in California.
Those 160g could be a tad light for subsonics, that you'll need to test out.
Be careful who you follow on YouTube, there's at least one guy that has blown up an AR action with a double charge (the most likely theory) and the same guy just blew apart a muzzle brake. There have been a few muzzle brakes destroyed as bonded bullets will literally come apart due to the spin from the 1:3 twist.
Lots of folks here have really gotten benchrest down to a science, but this 8.6bo is a paradign shift from traditional thinking.
Time will tell if it is as good as people are hoping for.
Where did you get that barrel blank? I ended up buying one of the pre-fit barrels from Faxon using the Savage barrel nut. I have an 8.6bo reamer I bought from PTG. Unfortunately I'm a ways from having my new shop setup with all of my machines, so it will take a bit to work on the first bolt action. In the meantime I'm using 2 semi-auto LR-308s with a 16" barrel in one and a 12" barrel in the other.
Here's a headshot posted on YT. This is pretty devistating.
DISCLAIMER: I certainly don't know too much about this cartridge yet, but it's looking promising. Ideally I would like to be using 8.6bo with subsonics with a supressor. Until then I will be shooting all supersonics, as I see no reason to use subsonics without a supressor.
I know there's data for the 300s, but wow the 160s is impressive. I have 210 and 225 loaded for EDIT: subsonic supersonic.
One thing I was just thinking about on subsonic. For Home Defense subsonic makes the most sense, and even with 8.6bo I still worry about cleanup. If you think about projectiles being shot through a house, it can be easy to go into the neighboring house. With subsonic you bring the velocity down to about 1050 fps, so there is much less chance of that happening, the velocity is very similar to a handgun.
With that said, I keep 300bo subsonic for home.
Honestly, I don't expect to have to use it, I'm not one of these appacolypse/prepper type guys unless wanting to put meat in the freezer puts me in that camp.
One thing I was just thinking about on subsonic. For Home Defense subsonic makes the most sense, and even with 8.6bo I still worry about cleanup. If you think about projectiles being shot through a house, it can be easy to go into the neighboring house. With subsonic you bring the velocity down to about 1050 fps, so there is much less chance of that happening, the velocity is very similar to a handgun.
With that said, I keep 300bo subsonic for home.
Honestly, I don't expect to have to use it, I'm not one of these appacolypse/prepper type guys unless wanting to put meat in the freezer puts me in that camp.
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