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8.6 Blk reloading info
- Thread starter unclemoak
- Start date
The 1/3 twist is supposed to allow for consistent expansion of subsonic hunting bullets. IIRC the bullet is immediately stable when shot through the doppler and gaining a higher BC. I personally saw the bullet outperforming what AB data suggested out to 400m with consistent 7 mph winds. Wind and elevation holds were way lower than anticipated.
Any idea what the case fill rate is on your data? Estimate with the eye is cool too.
It was approximately 45-50% on the unfired gorilla brass. They ended up at 1190fps in my 16" AR10, so I need to drop the charge some more. I have Lil'gun, H110 and Trail Boss if anyone has data for them?
Greg
Yes…works fine. I’ve converted FC SRP 6.5 Creedmoor and 6mm Creedmoor just fine.
Can only speak to Trail Boss. Great for bolt actions. I'm not sure it will cycle your AR-10, but giver her a go.
With my bolt action project, I'm hoping for Trail Boss to show up sometime soon, otherwise it'll be CFEBLK for me. Waiting patiently.
I just finished my bolt gun today, would you care to share your trailboss loads?
Greg
Greg, don't have my barrel yet. Waiting on the good folks at Bartlein.
I have been pondering and not sure how much to try, figure to the base of the bullet, weigh that then do 80% of it to see. I don't have the trail boss powder in GRT, but if anyone has Quickloads and could run trail boss and the 285gr ELD-M it would be great.
Greg
Trailboss has been discontinued but VV-N32c is availible and meters better with the same results. VV-N32c behind a 300gr SMK fills the case at 14gr if you seat to 2.780” which is what Gorilla seats the 300gr SMK’s at and have shot best at that OAL. Hope this helps.
I still have 4 pounds of trail boss, don't do the cowboy stuff anymore so there it is looking at me. VV is hard to find in my area, I would have to order it and with hazmat fees it just isn't worth it for me right now. But thank you for the data, I will save it in case we ever do get it around here.
Greg
4 lbs of the 9oz cans? If i recall the 1 lbs containers are actually 9oz cans but anyways the VV-N32c are large round balls.
I don't think 8gr of trailboss is enough!
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Ive actually tried the NOE 315gr without the nose cavity and it all depends on your lead/alloy mixture. You can have a really hard BHN22 hollow point that doesnt expand and you can have a really soft BHN10 solid that will mushroom like plado thrown against a wall. You want to be slightly soft for subs so they can expand at subsonic velocities if I’m assuming correct about your intended use…maybe 14-16. I’m still playing with lead cast bullets for a cheaper alternative to copper bullets but they don’t shoot as well yet for me.
Yes I am looking at water quenched WW, then powder coated and that should draw it back to about 16bnh after the coating. I shoot cast in quite a few guns, I am just thinking about the 1-3 twist making the HP start to open in the barrel. I can get the mold with pins to make it a solid point if needed. I just wonder if it will spin open, or if I will have to go even harder to keep it from doing that, which them makes the HP not worth using since it would be too hard to open, just fracture. I have till tomorrow before the discount expires that I can use.
As for yours not shooting well, what are you sizing the base to? .339 would be what I would do so it is slightly over barrel diameter. I don't know if your expanding the case mouth or not, but be sure to do that so it doesn't scrape off any of your coating when seating.
Greg
Have you seen this one, and from doing it myself on 6.5mm to 50bmg cast it seems to hold true, not as much on the 50 as there is just too much mass to change in the final cooking.
Well I went back out today with 5 loaded up with 9.5gr of trail boss, that is to the base of the bullet, and you don't want to compress trail boss or it gets really spiky as to pressure. Yea, 600fps isn't going to do it lol, unless someone is going to make a fracturing bullet that will open up at that speed.
Greg
Greg
Some load data for supers in the 8.6 blk. I see a lot of people saying the twist is all marketing hype and it does suck that bullet selection is so slim but I've never seen a mono bullet expand this much at this velocity (whatever that may be 100 yds out). The coolest and most compelling thing by far is the screw shape created by the twist while expanding
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What medium were those shot into? Also, what's your barrel length? Bolt or AR? I'm intrigued by 8.6BO...
So I set lmt target up on a thin sheet of plywood and recovered the bullets from a dirt mound. Switched to a 16 in barrel because I refuse to register a pistol (this is an AR).
That’s awful. The whole point of the round is short barrel subs with bonus of super. Why not just use a brace as a pistol?
Because the ATF no longer recognizes a braced pistol as a pistol. They want it registered as an SBR. I still have the 12" barrel for if the courts shut down this brace ruling and a suppressor is awaiting approval. No purpose in shooting subs if I don't have the can yet
I see that A5744 is a similar burn rate to A1680 and its a double base extruded powder. Every table I've come across shows that it's 1 step above 1680 in terms of burn rate. Going from ball powder to stick powder should help with temp sensitivity. Never used 5744 myself but it's said to provide pretty low velocity spreads and SDs
Also said to be insensitive to position which is pretty important with a low powder charge relative to your brass capacity
I’ll give it a shot. I plan on shooting a few coyotes this year with it. Cause why not
I took a hog with mine a couple weekends ago using a 185 cx. Hit the middle of the neck and when I was quartering him out there was no spine to sever to take the head off. Exit wound was the size of a golf ballI’ll give it a shot. I plan on shooting a few coyotes this year with it. Cause why not
I’m curious if it would have similar results in gelatin, or better yet a game animal. That 185gr CX load might just be universal. Out of my 12.5” its very accurate at 100y.
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I do have a bullet I recovered out of my last hog and the expansion was still very impressive. Went into the skull just above the left eye and found it right behind the right shoulder just under the skin. The CX is my favorite bullet no matter what I'm shooting
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Nice shooting. Does your barrel have the 1:3 twist? AR or bolt and what length? Apologies if you posted that info up thread and I missed it.
I had absolute shit luck with the 185CX on the two pigs I shot. First one was right in the head at 65 yards and still went 10 yards. Second one took one at 155 yards, rolled it and then I put 4 more into it.
Coyote on the other hand, it puffed it’s head up
Coyote on the other hand, it puffed it’s head up
Hogs are very resilient and they have a small brain cavity, large heavy structured faces encapsulate that small brain and deflection is always a concern when hitting bone with a spire point bullet design…I’m not sure what happened but it definitely wasn't a central nervous system shot because people have done it with smaller calibers on pigs before. Here’s several I took with a 5.56mm. You have a super nice setup those MDT chassis setups are clean.
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