New 6mm ARC on the way

[2brothers641]

Ordered a Seekins DMR 6mm arc today. Should have it in a few days and want to get a head start. What is the consensus on best mags, preferably 5-10 round? Currently I don’t reload so factory ammo for now. Any of the factory offerings showing consistently good accuracy? Rifle will be primarily used for hunting inside 250 yards. Thanks for any input.

 

[redneckbmxer24]

Duramag 10’s and 20’s run great in my Seekins ARC. All 3 Hornady loads also hammer in it. I mostly shoot precision hunter because it’s a great hunting and long range bullet in one.

 

[supercorndogs]

Some states require 5rd or less for big game with a semi auto.

 

[2brothers641]

No capacity limits here. I just like shorter mags for hunting, especially when using a thermal at night.

 

[2brothers641]

I’ve had good luck with Duramags in my .450 BM so I’ll give them a try. I see Geissele has some mags (not in stock). Christ they are proud of them for what they cost.

 

[General RE LEE]

I think that barrel has a 1:8 twist vs the more common 1:7.5 twist rate for 6 ARC. Some people find better accuracy with lighter bullets, but they also handload. You can try the 3 Hornady offerings and see what it likes best. Seems the 105 Hornady Black and 108 ELD-M are the most available.

 

[Tyranny Not Allowed]

Currently using the duramags. 10, 20, and 27(?) I believe. The 20 feels like it really only wants to hold 19. You can shove 20 in there but good luck inserting it on a closed bolt. All have worked flawlessly for me so far

 

[mahonsr]

How’d the duramags work out in your rig?

 

[Tyranny Not Allowed]

How’d the duramags work out in your rig?

They have been flawless so far, many hundreds of rounds later. I barely use the 27 because it’s so large and awkward shaped. I haven’t had a mag related cycling issue yet. They even work on full auto

 

[Clint H]

I've had no issues with the 6ARC-specific ASC mags (ones with red followers) in my Seekins DMR, if you want another option, too.

From what I've been reading, most of the 5-10rd mags feed pretty well. It's the higher capacity (20rd+) where the issues start popping up for some reason.

 

[supercorndogs]

I have about 600 rounds of 6arc through my ASC 6.5g mag. Probably about that in grendel through it too.

 

[abn31c]

Been using ASC grendel mags for 22 ARC, zero problems.