6mm ARC Velocities

[The Guide]

I have a Howa Mini with a 22” sporter barrel shooting factory 108 ELD-M’s at 2620 fps.

Factory ammo, or handload?
If hand…. Powder? Charge weight?
Please & thanks

I just bought the same. Waiting on rings, etc. Trying to accumulate data at the moment.

@MEdude read the first sentence slowly and the answer will come to you.

Jay

 

[TNHighlands]

Building an 18" over the Christmas holidays.
Hoping to get 2550 to 2600 with 103's and 108's in factory as i don't reload. Gets me to 1800fps at 500 or so.

Some of these pictures make me wish I went ahead and bought the proof barrel.

Will post back once up and running.

 

[KyleR1985]

2540 average in 16” gas gun with factory 108’s for me.

 

[mahonsr]

22” Howa mini spotter barrel shooting Hornady factory 108 ELDMs - I have about 200ish rds through the barrel

 

[mahonsr]

Any recommendations on freebore for a new 6 arc barrel on a tikka? Will be shooting 108 ELDMs and reloading. Had a smith ask me today regarding that and I wasn’t sure what to ask for as I normally just make work whatever I have. I’ll be reloading and shooting 108 eldms

 

[khuber84]

Any recommendations on freebore for a new 6 arc barrel on a tikka? Will be shooting 108 ELDMs and reloading. Had a smith ask me today regarding that and I wasn’t sure what to ask for as I normally just make work whatever I have. I’ll be reloading and shooting 108 eldms

Considering a 6cm has 0.183 freebore and that's about perfect for the 108 eldm jumping 30-40k, that's where I'd put it. I always choose a long throat reamer if possible, bullets shoot well jumping a ways.

Edit, after seeing the 6cm has a 0.030 longer neck, I'd prob go even longer with the freebore. However you get out there too far, and you do start to limit some bullet options(the lighter ones anyway). Some will be jumping extreme distance. That usually doesn't bother me as I primarily shoot all heavy for caliber.

 

[Northpark]

I’m in on this thread. 6 ARC has become my new favorite cartridge. Currently I’m shooting two different loads. The factory 80gr ELDVT runs at 2830fps and my 105gr Berger HVLD hand loads are very accurate at 2635 FPS.y handloads are just using Hornady brass with CCI 400 small rifle primers, CFE223 and the 105 gr. Berger. I definitely want to start playing with handloading the 80gr ELDVT but just haven’t had the time.

This is out of a 20” barreled AR.

 

[General RE LEE]

Most accurate load out of my Howa 6 ARC is 26.5 grains Varget 108 ELDM, but velocities are low at 2575-2600.

I ditched that load and went up a grain to 27.5. Accuracy can be really good or not. It’s a finicky load.

Would yall be happy with a load in a bolt gun that is 0.5 MOA accurate but gas gun speeds?