Highpower shooters loved them for years. If I recall, they offered a left hand twist .224 that got some attention due to how it recoiled offhand, but I could be confusing this with another brand.
New 6mm Advanced Rifle Cartridge
- Thread starter Gtscotty
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Highpower shooters loved them for years. If I recall, they offered a left hand twist .224 that got some attention due to how it recoiled offhand, but I could be confusing this with another brand.
I think Satern tends to make barrels with short gas systems. Like 18" grendels with mid gas. Not for me. I beleive there were also two diffrent qualities of barrels sold under that name. The 18" grendel midgas satern barrel I had was ok. MOAish.
You always have to remeber lots of people not only can't shoot, but couldn't find their ass with both hands.
You always have to remeber lots of people not only can't shoot, but couldn't find their ass with both hands.
Seems like all the 6arc crew is in this thread, good.
Got some Hornady black label and a 6mm "0.241" mandrel coming in today.
Do any of you know what the difference between Hornady 105g bthp and their Aeromatch 105g bullets is.
Aeromatch supposedly is small batch and same lott, good.
Bur their verbage about the ogive is confusing.
As I understand it their legacy 105g bthp is secant ogive and the Aeromatch is tangent or hybrid?
Local store is out of both.
Got some Hornady black label and a 6mm "0.241" mandrel coming in today.
Do any of you know what the difference between Hornady 105g bthp and their Aeromatch 105g bullets is.
Aeromatch supposedly is small batch and same lott, good.
Bur their verbage about the ogive is confusing.
As I understand it their legacy 105g bthp is secant ogive and the Aeromatch is tangent or hybrid?
Local store is out of both.
I could be wrong, but I think their aeromatch 105 is supposed to be a clone of the berger 105 target which is a hybrid ogive and yes the 105 bthp is secant
I just got the Hornady blk 6arc delivered. Yup secant ogive and no damn surprise doesn't fit well in my brand new Lee seating stem.
Plunk check was perfect and also chambered a little tight on my uncleaned new barrel using finger pressure on back of bcg. No scratches upon slow manual extraction.
Now to get my hands on an Aeromatch 105g
Plunk check was perfect and also chambered a little tight on my uncleaned new barrel using finger pressure on back of bcg. No scratches upon slow manual extraction.
Now to get my hands on an Aeromatch 105g
Mine shot great for about 1200 rounds and now it’s starting to double group and do all kinds of weird stuff. Shoot one 10 shot group in one are. Cool it off come back and the next 10 shots go like 6 inches to the right of the other group. Very odd.
This may sound obvious, but change to a known good optic/mount. I’ve seen this and it was a lens changing parallax that had to be repaired.
And if you haven’t, scope the throat for a carbon ring.
I quit Leupold long ago. Not because I’ve broken one, but I RSO at the local range 5-6 days a year, and shoot in the off hours a lot.
I’ve seen enough people complain about broken leupold, or not holding zero, or turrets that don’t repeat/tract. Even the high end Leupold scopes.
I’d rather not have to pay $1500+ to have a decent hunting scope that tracks true and returns to zero, when Arken and Athlon and others make scopes under $600 that track true.
Flame suit on, but the Philippines and China are giving Oregon a run for their money value wise.
I’ve seen enough people complain about broken leupold, or not holding zero, or turrets that don’t repeat/tract. Even the high end Leupold scopes.
I’d rather not have to pay $1500+ to have a decent hunting scope that tracks true and returns to zero, when Arken and Athlon and others make scopes under $600 that track true.
Flame suit on, but the Philippines and China are giving Oregon a run for their money value wise.
X-Caliber 14.5" 4140 barrel, HBAR profile, VG6 brake (P&W), Aero bolt, BCM BLEM upper, PSA lower, G S3G trigger, MI drop-in handguards, Vudu 5-25x.
yeah, not free-floated, heresy, blasphemy! Therefore HBAR.
Geissele, E-Lander, ASC mags.
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It’s the barrel. I tried 3 different scopes and switched them. Nightforces all worked fine on the other guns.
Checked for a carbon ring after cleaning and nothing was present. Took it back out and shot another 200 rounds with similar results. I’ve just had bad luck with cheaper 6ARC barrels. The Odin I had was abysmal. The satern was a laser beam. Factory ammo and Handloads. Gonna try it one last time with 108’s tomorrow. I didn’t get the cut rifled one though I should specify I got it through Grendel Hunter but it is a satern barrel. It probably has close to 3k on it because even though it wasn’t tight grouping it didn’t stop me from hitting IPSC’s out to 1100 yards. Getting great ES and SD still with my 27.5 tac 108 ELDM Ruag greenfire primer load. I loaded the next load right at mag length of 2.295 COAL. We will see how it does tomorrow. X caliber bull barrel is next in the chute.
Decent first outing with a new Geissele 18” Stratomatch 6ARC. Shooting factory Hornady 108s at 2550fps average. No issues with 15rd ASC mags. Ejected at 3 o’clock with a 7.62 RC2 suppressor without an adjustable gas block, and locked back every time. An old timer snagged my brass, so I have no idea what the casings looked like.
Going to have a chance to try to reach out to 1k yards Friday with my 6arc gasser and my 6.5 Bolty. Wish me luck.
Tried out some 110 SMK over LVR. 28.5 seems most accurate so far but still far from acceptable. No pressure signs so I’ll keep climbing.
Seekins 18” Proof CF
Garmin Xero
Seekins 18” Proof CF
Garmin Xero
Anyone ever get a 6 ARC barrel chambered for the type 1 bolt instead of the type 2? I feel like the type 2 should be the standard. I ask b/c I just got a 16" MLGS 416R 6 ARC barrel delivered by Blackhole Weaponry and when I checked the headspace it easily failed the 1.200" SAAMI Field gauge. I tried with another bolt and it also easily failed the field gauge.
I emailed them and they wrote back saying "barrels are set to a type one bolt using a 7.62x39 for the 6arc" which I was a little surprised to hear. I don't think there was a drop down on their website for which bolt type you want the barrel chambered for so they defaulted to type 1. Now I have to mail it back so they can swap it for a type 2 barrel (I want to maintain cross compatibility with my other 6 ARC upper). Frustrating but oh well, I can now use this time to re-assemble my 18" 6 arc upper with the PVA osprey barrel.
I emailed them and they wrote back saying "barrels are set to a type one bolt using a 7.62x39 for the 6arc" which I was a little surprised to hear. I don't think there was a drop down on their website for which bolt type you want the barrel chambered for so they defaulted to type 1. Now I have to mail it back so they can swap it for a type 2 barrel (I want to maintain cross compatibility with my other 6 ARC upper). Frustrating but oh well, I can now use this time to re-assemble my 18" 6 arc upper with the PVA osprey barrel.
I don't know if the Hornady app data has had a recent change, or if their load/velocity table entry for Staball Match has been way wrong for a while, but they baited me into trying some of their STBM loads by showing them as the same velocity as the top CFE223 and LVR loads. The bad part is that I've loaded all three powders in a few different cartridges enough to know they were smoking crack on the STB/LVR equivalency, but I loaded some up to try anyway.
But of course it was nonsense and the real world STBM velocities were a solid 200+ fps behind LVR in the same barrel. I have a hard time understanding how something this far off gets published.
But of course it was nonsense and the real world STBM velocities were a solid 200+ fps behind LVR in the same barrel. I have a hard time understanding how something this far off gets published.
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Trying to get Hornady app downloaded and functional.
Something wrong with verification or server.
Anyway I have a handful of hard facts, and some thoughts on going forward.
Factory black old school hornady 105 match loads were very soft shooting in my 24 inch Faxon barrel, in fact looked like they would group soon on new barrel..
Lets just consider all these measurements as nominal, I have rounded them off for examples.
but just in case there are any trolls looking for something to bitch about, I use tool steel as calibration blocks, these are ground to 0.0000, +/- 0.0001 . But I'm not going there.
ARS magazine, bullets scraped at 2.300 COAL.
2.300 COAL put BTO of the areomatch 105g 6mm bullets at 1.560 inches.
So for safety I cut 0.0200 from AOL nominal from the magazine length.
Left me at coal of 2.280 and a bto of 1.540, it chambered under thumb pressure, there was a slide mark before the ogive. I think from the forcing cone since not a scratch or cut from lands.
The factory 105 black came in at 2.220 coal and 1.583 bto.
The listing from Hornady above, 2.245 coal and 1.505 bto for the Aeromatch
So I guess their coal is driven by Magpul magazines.
Looks like I can take advantage of the ars mags for the extra 0.040 thou worth of powder.
Need to finish my modified case to find lands but if near chamber spec I have a huge jump already.
Something wrong with verification or server.
Anyway I have a handful of hard facts, and some thoughts on going forward.
Factory black old school hornady 105 match loads were very soft shooting in my 24 inch Faxon barrel, in fact looked like they would group soon on new barrel..
Lets just consider all these measurements as nominal, I have rounded them off for examples.
but just in case there are any trolls looking for something to bitch about, I use tool steel as calibration blocks, these are ground to 0.0000, +/- 0.0001 . But I'm not going there.
ARS magazine, bullets scraped at 2.300 COAL.
2.300 COAL put BTO of the areomatch 105g 6mm bullets at 1.560 inches.
So for safety I cut 0.0200 from AOL nominal from the magazine length.
Left me at coal of 2.280 and a bto of 1.540, it chambered under thumb pressure, there was a slide mark before the ogive. I think from the forcing cone since not a scratch or cut from lands.
The factory 105 black came in at 2.220 coal and 1.583 bto.
The listing from Hornady above, 2.245 coal and 1.505 bto for the Aeromatch
So I guess their coal is driven by Magpul magazines.
Looks like I can take advantage of the ars mags for the extra 0.040 thou worth of powder.
Need to finish my modified case to find lands but if near chamber spec I have a huge jump already.
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Modified case.
Not sure what this one is modified for but it is not factory stuff anymore.
What you get when your "rigged" "holding" fixture doesn't.
LMAO
Drill press down so tried free hand.
Poster child for the machinists.
Improvised wooden holding fixture. Drill bit grabbed the thin material and sucked it up.
Not sure what this one is modified for but it is not factory stuff anymore.
What you get when your "rigged" "holding" fixture doesn't.
LMAO
Drill press down so tried free hand.
Poster child for the machinists.
Improvised wooden holding fixture. Drill bit grabbed the thin material and sucked it up.
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I make my own modified cases. I remove the decapping assembly from my sizing die and givethe case a few light taps to seat it. I then chuck the die in my lathe and do the drilling and tapping. I then use my press to remove the case from the die.
Why wouldn't you just hold the base of the case in your jaws??
Ive tapped 100s of cases for myself and others. I put the case in my lathe jaws right at thr thick base with little pressure then proceed to drill and tap
Ended up not pulling down the other rifle. Had a Colt upper for a Mod1 and just used that a it’s riding my SBR lower, though but is a P&W.
Pulled the Noveske gas block and pinned a Superlative Arms on with their gas tube. Has the matched Noveske bolt.
Scope is an old NXS F1 with NP-R1 reticle. (God’s reticle, bring it back Nightforce!). Has a Balderknob front ring cap for Trijicon RMR and a Reptillia 10mm spacer to get over the elevation turret. I think this is going to work fine.
First outing was bad. Real bad. Like I was jamming 105BTHPs deep and it wouldn’t feed the first round. 80s ran like a top. 105s sucked ass. I think facing this receiver caused a tiny lip in the ramps that wasn’t noticed as the 80s ran so well, the extension was set back every so slightly, so barrel got pulled, milled and ramps polished. Hoping I have the ammo situation figured out. Thanks to @Ledzep for the assist.
I should be zero’ing tomorrow, and getting dope to at least 600. If it’s at least a 1.5 MOA rifle I’ll carry it for my DMR run and Gun the 18th. (I really hope it’s better than MOA). If not, I’ll probably run a mod0 or just a URGI.
First and foremost I drill and tap in the lathe so the chuck pressure would probably deform the case. #2 the dies are so dimensionally correct that I don't even have to indicate them to check runout. The 1/4-28 mandrel that I machined to thread in is always concentric in the neck.
No doubt a lathe is the best tool to use.
I'm not waiting on major tool so I just ordered one from Hornady.
It will be off from my chamber but I can take measurements and do the math.
I don't plan on sucking up to the lands even if it were possible which I think not with the aeromatch 105 in a magazine dimensionally impossible I think
.
Touted as jump tolerant which as I have found not the norm from Hornady.
I'm not waiting on major tool so I just ordered one from Hornady.
It will be off from my chamber but I can take measurements and do the math.
I don't plan on sucking up to the lands even if it were possible which I think not with the aeromatch 105 in a magazine dimensionally impossible I think
.Touted as jump tolerant which as I have found not the norm from Hornady.
No doubt a lathe is the best tool to use.
I'm not waiting on major tool so I just ordered one from Hornady.
It will be off from my chamber but I can take measurements and do the math.
I don't plan on sucking up to the lands even if it were possible which I think not with the aeromatch 105 in a magazine dimensionally impossible I think
Touted as jump tolerant which as I have found not the norm from Hornady.
The Hornady OAL case for the 6 ARC measures 1.80” at the datum line on the shoulder. A case fired in my AR measures 1.93” at the datum line and a case fired in my bolt gun measure 1.86”. It would be easy enough to figure out the difference if using this tool.
Never used their new Aeromatch line but the other Hornady bullets, AMAX/BTHP/ELD-M/ATip, are very jump tolerant. The Aeromatch are looking to be like the similar bullet from another manufacturer so they may not be.
The 77s shoot almost identical to the 77SMK, though they zero about 1” to the right?
I have some of the Aeromatch 105s on hand but won’t be able to test them today. They look a lot like hybrids
Running Hornaday105 BTHP and 95gr SMKs. Both over Lever. Wheels up in 20 minutes, should be the warmest part of the day when I get there. We’ll see how it goes.
Well my new barrel is set dead on 1.900 so close to yours. I will use their factory ammo size tool till I get one to match my chamber but looks like the math will be easy . Lol
It's strange that we get polar opposite results on jump settings for most Hornady bullets .
I had thought everyone was crazy but know that's wrong.
I also know my results, and efforts.
That being said, I may have figured out why finally.
Lee will make a seating stem for any bullet you send them, which I only became aware of recently. I believe that was part of my problem all this time. (Duh)
Better yet they make a whole new redisighned seating die now that properly fits secant ogive and hybrid ogive bullets.
I got my hands on some and they fit the Aeromatch 105 well it seems.
It appears the Aeromatch series very closely aligns with a couple of top brands.
I made a dummy load for 6mm arc wth a fire formed case and the Hornady 105 Aeromatch.
It's 0.020 off the ars magazine (2.300) and 0.050 off the case mouth at 1.540 bto, 2.280 coal.
It chambers with thumb pressure on the back of the bcg. It's not hitting lands but may be touching the forcing cone?
I'm not sure how to deal with that, I don't want to build pressure.
Nearly zero successful experience with hybrid or (compound) ogive bullets .
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Yeah the Aeromatch line was made to be similar to others. Their jump sensitivity will be their own and not a generalization of all of the Hornady lines of course.
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