Thread: 6mm ARC - What would yours look like

Originally Posted by 257weatherby

6x45....... oh wait, invent something "new" instead so they all rush off and buy one. Or, does this new carry on do something different/better? Saw something that gave an 80gn pill 2750, seems a bit anemic.

You looking at the AR loadings. Look up the bolt action loadings and you will see it much better

Will they have brass or neck down 6.5 grendel?
I'm still farting around with a 250 savage to shoot well for a light cal deer rifle but if I finally crack the shits with it then id be interested in a howa 6arc.
Bit more smoke than 6 x 45

Here's a link to the Bolt action page: https://www.hornady.com/assets/site/...m-arc-bolt.pdf

A mate has one built on a Ruger American ranch, feeding from AR mags. Shot it out to 1640m with a first or second round impact. Bloody awesome build.

The 6ARC comes as a package with COAL inside AR length but accommodating a much heavier bullet than the 6mm PPC. The package has a fast twist barrel unlike the PPC . Its commercialised and standardised which is great. I guess they are trying to overcome the low velocity drawback of cartridges like the 6.8SPC and 6.5Grendel.

In a bolt gun it must have a short barrel 18” at the most but prefrably 16. If you go yo 20” you are better off to use a 16” 243 or 6Creed which will give far better exterior and terminal ballistics.

It remains to be seen whether they will get the kinetic energy needed for hunting out of a short barrel and whether they have made a bullet that will expand well enough at a low impact velocity like 1600fps.

The howa carbon sporter looks nice. I dont know THE answer for scopes but you’ll need some finesse to place the bullet beyond 100m. Its shoot small or go home. Yet it will be mostly a bush gun so low end low light performance is important.

Originally Posted by Bagheera

In a bolt gun it must have a short barrel 18” at the most but prefrably 16. If you go yo 20” you are better off to use a 16” 243 or 6Creed which will give far better exterior and terminal ballistics.

This here is exactly why my 6x45 is in danger of being relegated to the bench. This reality dawned on me when I saw it and the model 7 side by side in the safe - the M7 action is basically the same size as the ‘little’ BSA Hunter, but has so much more power capability. Why try and wring the neck of a small cartridge when I can use a bigger one, in a package the same size. With no disadvantages…. Except a bit more powder burnt.

The ARC has merit in a true mini action, for a niche capability I think. I had contemplated it to go in the BSA action, but after this revelation, I won’t be.

Why "must" it have a 16" barrel if it really performs with a 20" to 24" inch barrel. You just making a slow bullet even slower. You better off with a 16" 308 then.

It definitely looks like a good AR platform cartridge for extending the range but I will stick with my 6.5G at the moment. I prefer the 123 grain as a minimum for a deer.

Originally Posted by Hunter_Nick

This here is exactly why my 6x45 is in danger of being relegated to the bench. This reality dawned on me when I saw it and the model 7 side by side in the safe - the M7 action is basically the same size as the ‘little’ BSA Hunter, but has so much more power capability. Why try and wring the neck of a small cartridge when I can use a bigger one, in a package the same size. With no disadvantages…. Except a bit more powder burnt.

The ARC has merit in a true mini action, for a niche capability I think. I had contemplated it to go in the BSA action, but after this revelation, I won’t be.

Yes, agreed. Ive also been thinking about this recently, when ive been playing around with reduced loads for my 8 year old lad to shoot 243 and 6.5 Creed (both in Model 7 actions). You can easily load a bigger case down if need be, whereas you cannot load a smaller case up.

I originally was looking at getting another rifle for him, a small case 6mm, or another 6.5 Grendel etc (already briefly had a Howa Mini in 6.5G and didnt really like it for my use at that point).

I loaded the 243 down to around 6x45 velocities with an 80gr at 2700 fps, and I loaded the 6.5 Creed down to 6.5 Grendel velocities with a 123 gr eldm at 2570 fps, both using 30gr of IMR4198. Both of these loads each shot 3 shot groups in the .3s" area.

Obviously, both rifles/cartridges have the ability to step up the powder charge, bullet weight and velocity when my lad is ready for that. Also, more importantly, particually in the case of the M7 6.5 Creed, when im taking this rifle on a hunt where theres a chance my boy will be able to take a shot (if in range for him and his reduced ammo), if there is a shot on offer that is too far away for him and we cannot get closer, i can simply chamber a full power 140gr round at 2850 fps and take the shot myself, something i couldnt do if we had a 6.5 Grendel out on the hill with us.

And the M7's are smaller and lighter package than the Howa 'mini' anyway.

So this works for me and my intended use anyway.

Model 7s are smaller and lighter than howa mini?
My memory must be off as the model 7 260 I had wasn’t near as light as my skinny barrel mini
The mini is a bit blocky stock wise but I thought it would be miles lighter


Sent from my iPhone using Tapatalk

Originally Posted by Bill999

Model 7s are smaller and lighter than howa mini?
My memory must be off as the model 7 260 I had wasn’t near as light as my skinny barrel mini
The mini is a bit blocky stock wise but I thought it would be miles lighter

Nope it's not. I expected it would be too, but its not. The Howa mini is pretty chunky in it's fat and hefty factory stock.

The Hi-Tech mini stock is a massive improvement.

I believe there's a new mini coming out with a slimmer lighter stock in more of a model 7 shape, what they should have done from the start.

Sent from my iPhone using Tapatalk

[QUOTE=Bill999;1323610]Model 7s are smaller and lighter than howa mini?
My memory must be off as the model 7 260 I had wasn’t near as light as my skinny barrel mini
The mini is a bit blocky stock wise but I thought it would be miles lighter


Sent from my iPhone using Tapatalk[/QUOTE


@Bill999

Here's a standard M7, newer one with barrel cut to 18" from 20"

Compared to the Howa mini I had, pic was while I was thinning down and lightning the factory stock. There's a section of the foreend that's been cut out. Also drilled out the solid pistol grip

Took close to 200grams out of it. Also note the recoil pad is much lighter than factory one.

The Howa mini pictured was the standard 22" barrel.

I didn't have a pic of weight of rifle before I started lightning it.

You get the idea, the Howa mini isn't that light.

Sent from my CPH2197 using Tapatalk

When Sako chamber 6ARC in their XS action I will buy a carbonlight in it.
They did it once upon a time with 6PPC in the Vixen.
Maybe the 6 will have enough wind advantage over 5.56 for varmint or target shooting to attract a customer base.

Originally Posted by Bagheera

When Sako chamber 6ARC in their XS action I will buy a carbonlight in it.
They did it once upon a time with 6PPC in the Vixen.

Aye, but back then Sako actually made nice rifles out of wood and blued steel, not plastic fantastic safe queens.

Originally Posted by Bagheera

When Sako chamber 6ARC in their XS action I will buy a carbonlight in it.
They did it once upon a time with 6PPC in the Vixen.

Aye, but back then Sako actually made nice rifles out of wood and blued steel, not plastic fantastic safe queens.