Like the subject line says, as I key this in Brownell's still showing 8 Lb. LVR in stock....it will go fast!

Looking for folks test results with these powders, AR-Comp & 8208XBR.  These are the only 2 powders I have and unable to acquire other types for now so I have to make do with what I have.  Greatly appreciated if you post your test results (good & bad) to include the bullets you tested with and platform type (gas/bolt).

Be safe!

SixFive has some 12" 6mm Arc barrels... see the vendor thread below.

So the cats finally out of the bag,  Legacy Sports International will be releasing a 6mm ARC offering on the Howa Mini action Spring 2022 

These are my results getting started with reloads for my 6 ARC.
My gun. AR Areo upper, lower and BCG. Vltor A5 buffer system with an A5 H1 buffer. LaRue 2 stage trigger with light spring. 22" barrel with +1 gas system made by Compass Lake Engineering from a Criterion 7.5 twist blank.
I started a little high on the charges but wanted to be in the 2700+-25 fps range.
Powder was Leverevolution and bullets seated .030 off the lands (CBTO 1.679 COAL 2.254) on the 108 ELD-Ms
Measurements were with the Hornady head space comparator #350 and bullet comparator #324
Temp. was around 90 and humidity was Florida ?

First 5 shots were with Hornady factory Black 105gr to get a baseline and warm the barrel and check function of chrono.
Charge      Avg        ES       SD      Group size
Black       2780        17       5          1.1
108 reloads
28.8        2673        42       15         .81
29.0        2693        40       19        1.3 but I pulled 1 shot .81 without that      
29.2        2710        51       21        1.53
29.4        2732        25       9          .98        

I loaded a few (10) rounds of 109gr berger LRHT mostly to function test
29.0        2675        59       25        1.84    .051 off the lands
29.2        2687        44       16        1.50    .045 off the lands

Primers looked great and only very slight ejector marks in all but the lightest load.
I measured and took apart a factory 105 Black when I got home but haven't checked jam/jump length yet. I weighed the powder that "appears" to be lever and got a weight of 29.9

That's all folks

Discord says you have some 6mmARC 12" Monster barrels available this morning...
Grab 'em quick guys!

recently added a Sanders Armory 6mmARC upper to my collection after having an extremely positive experience with their 6.5 Grendel upper.  Great company to deal with, and if you call you get the owner on the phone, or at least I have whenever I've called to discuss their products.

Heading out of town to my daughter's wedding this week so a range report will wait until I return.

Nancy

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I have an RCBS Chargemaster 1500 without the calibration weights for sale for $225 shipped. I do not used this scale anymore. It still works like new.

Jim

Has anyone tried these powders for the 6ARC for bullets > 103 grains: Hodgdon H322, IMR 4166, AR-Comp, Reloder 15, Varget. What were the results? A friend uses H322 and says it has worked great in his bolt gun. recipes?

Jim