6mm Bullets with a BC above .400 and cost per bullet. Data taken from MidSouth.  Please add to the list with the ones I missed.
Badlands ICBM 84 gr. .415 $.74
Speer 85 Spitzer SPBT B.C. .404 $.016
Hornady 87 V-Max B.C. .400 $.023
Berger 87 Match Hunting (VLD) B.C. .427 $.040
Lapua Scenar-L 90 BTHP B.C. 434 $.050 Midway
Nosler 90gr E-Tip lead free ballistic tip boat tail .403 Midway 54¢
Berger 90 Match BT B.C. .409 $.040
Sierra 90 TGK Game Changer B.C. .490 $.028
Hornady 90 Grain ELD-X B.C. .409 $.033
Barnes 95 LRX Long Range X BT B.C. .436 $.064
Sierra 95 HPBT MK B.C. .480 $.033
Sierra 95  TMK B.C. .500 $.035
Berger 95 Match Target (VLD) B.C. .467 $.041
Sierra 100 SBT GK B.C. .430 $.028
Sierra 100 TGK GameChanger B.C. .515 $.028
Speer 100 BT B.C. .446 $.016
Cutting Edge MTH 100 gr. .470 $1.10
Hornady 100 BT Spier Point B.C. .405 $.024
Hornady 103 Grain ELD-X B.C. .512/.258 $.037
Lapua 105 Scenar open tip B.C. .472/.236 $.043 Brownells
Barnes 105 BT Match Burner B.C. .511 $.025
Hornady Match 105  BTHP B.C. .530 /.254 $.021
Nosler 105 BTHP RDF B.C. .571/.280 $.037
Nosler 105gr BTHP CC .517 BC, price about the same as the 107, 27-30¢ on Midway
Berger 105 Match Target (VLD) B.C. .517 $.040
Berger 105 Match Target BT B.C. .494 $.042
Berger 105 Grain Hybrid Target B.C. .536/.275 $.040
Berger 105 Match Hunting (VLD) B.C. .545 $.042
Sierra 107 Grain HPBT MK B.C. .527 $.035
Nosler 107  BTHP C.C. B.C. .525 $.033
Hornady 108 Grain ELD Match B.C. .536/.270 $.034
Berger 108 Match Target BT B.C. .522 $.041
Berger 108 Grain Elite Hunter B.C. .559 $.044
Berger 109 LR Hybrid Target B.C. .568/.292 $.044
Sierra 110 Grain HPBT MK B.C. .617 $.040
Hornady 110 Grain A-Tip Match B.C. .604/304 $.067
Barnes 112 Grain Match Burner B.C. .624 $.025
Berger 115 Match Hunting (VLD) B.C. .568 $.046
Nosler 115 RDF HPBT B.C. .634/.312 $.034

If anybody is interested Sportsmans Outdoor Superstore has Hornady Black 6ARC 105 grain bthp ammunition in stock for $19.39 a box plus shipping (CLICK HERE).  It’s the only place I’ve found that has any in stock as of late.  

Trashy

$99 for 500. Should easily be a 1k yarder for the price of a plinker! Overruns - not Blems. I was able to get to work in my McGowan 6 Grrr before, well, I'd rather not get into that......

http://www.shootersproshop.com/on-sale/n...ce2a49f604

So I decided on a Proof Research Barrel in all Stainless Steel, for the price and it being Cut Rifled. I think you will have a hard time beating it. But only time will tell 100% I'm going with the 18” +1 rifle gas 1/7.5 twist. I'll order it but it's gonna take about 12 weeks (boo) so it’ll give me time to get me some parts gathered. 

List of a couple parts I’m pretty close to being 100% on. But like on all builds things change 

Vltor MUR upper
Trigger Tech or Geissele Trigger
Luth AR MBA-1 or MBA-3 
Vltor GB 
Bootleg adjustable carrier or might go with Adjustable GB
Rugged Silencer MB (for Surge)
Radian CH
Radian Safety
Monster Bolt or JP
JP SCS or JP +Spring w/T2

List of parts I have no idea
Grip
FF Rail(Have to see what is compatible with MUR, MLOK 100%
Lower (thinking on going with a Ambi)
Optic
Mount
Gas Tube

I’ve also been thinking of possibly having upper/lower/rail cerakoted Burnt Bronze or possibly a Multi Camo

...of 6mm as a military rifle caliber. Looking forward to more news of military use of 6mm ARC.

Also hoping that Hornady will develop and market a sweet FMJ load in this caliber before I die. 

Saw this afternoon on the Hornady load app that they have released limited load data for the 6ARC.  Data is for the 108 eld-m and 110 a-tip.  They also included velocities for max charge weights of several powders for different barrel lengths.

It’s not complete but at least it’s a start.

Trashy

I have scoured the Internet for in-stock barrels and cannot find one. Anybody got any leads on in-stock 22" 1:7.5 twist 416R stainless barrels?

As far an a complete upper build, this looks like a reasonable solution.  https://sandersarmoryusa.com/product-cat...-assembly/

I am also looking at the OdinWorks 21 inch with gas tube and adjustable gas block for $399.00.   

https://www.odinworks.com/category_s/2001.htm

But the Sanders complete upper for $515.00 sounds like the best deal yet....
 

I called Hornady on 6-30-2020 and asked when they were going to start shipping arc brass since I’ve had brass on back order at Midsouth since a day after it was announced.

The nice lady at Hornady told me they were still 30-60 days out before shipping.  Anybody heard anything different?  Trying to figure out my next purchase since I will only have 60 pieces from the 3 boxes of 105’s I was able to get.

I’m open to all ideas, I know it will be awhile before the market catches up.

Trashy

Evening gents (and ladies),

I come over from 65 Grendel forum also.  Been drooling over a 6mm based on the Grr case for some time now but could not swallow the price of any of the wildcats.

I’m so excited about the 6ARC already received Hornady dies and 3 boxes of the 105 grainers.  Got everything but the barrel for my build and CMMG sent me an email yesterday stating “your order is complete” whatever that means.

Now I just got to decide whether or not I want to sell my 2nd Grendel build!

Trashy

With release of the 6 MM ARC I immediately was focused on the AR-15 and micro actions chambered for the 6 ARC.  Last night I realized the 6 MM ARC might be a very good cartridge for the AK platform.   


My choice in the AK was the 5.45x39 mm as chambered in the AK-74.   With the CSSPECS 6.5 Grendel magazines for the AK it appears the 6 ARC might make the AK-74 and even better intermediate caliber carbine.

I looked at Evocatus Strategic web site and I didn’t see any mention of the 6 ARC.  ES is selling AK’s chambered in 6.5 Grendel and are releasing an AK mag for the 6.5 Grendel.   A quality AK gas piston rifle could see the benefit of an accurate intermediate cartridge with increased effective range over the 5.45 or 5.56 variants.

The Chinese 5.8x42 mm cartridge ballistics are similar to the 6 ARC but the PLA military ammunition isn’t reported to produce accuracy up to western military standards.   Just curious if anyone else has an opinion on the feasibility of an AK chambered in 6 ARC.   An AK-74 in 6 ARC with Barnual 6 MM ARC steel cased ammo might be fun.



https://evocatusstrategic.com