6mm ARC Lightweight Backpacking Rifle Build

jamesmc8

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Oct 26, 2021
Messages
259
Thought others might be interested in this build. I have had an interested in adding a lightweight deer and goat rifle to the quiver for some time. As I have two other rifles that cover most of my Elk/Deer hunting I wanted to take a budget friendly approach as this rifle would only be used on certain hunts. I was intrigued by the new calibers being added to Howa Mini Action, especially that the barreled actions could be bought for around $450 on Brownell's. After researching the various options I found the 6mm ARC to be a good fit for my criteria as a lightweight cartridge capable to 300-400yards with a simple optic. The 6.5 Grendel was also a viable option.

Now for the stock, I looked briefly at Bell and Carlson as they have proven reliable for me with other builds, however weight was right around two pounds which in the era of carbon fiber is a bit on the heavy side for a ultralight rifle. Stocky's had two very appealing options the VG (Vertical Grip) Mini (21 oz) and the Carbon Hunter Mini (17 oz.) I have a strong preference for a vertical or pistol style grip and decided the 4 oz was worth the ergonomics. The stock came as advertised right at 21 oz.

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It is a very lightweight stock, the fit was excellent and the finish was just OK, not quite what I expected for $550. It does not have as much internal structure as other stocks and I noticed that there was significant flex in the stock when tightening the action screws.... no bueno. The barrel channel was also a little off and contacting the barrel. I otherwise loved the fit of the stock and the limbsaver pad so elected to epoxy bed the action. Some sanding remedied the barrel fit. Bedding resolved the stock flex and improved accuracy. I was also considering a Stocky's for my Savage 280 AI but after the fitting issues with this stock I am going to go with a Mesa Precision for that build.

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Next up rings... it was down to a DNZ game reaper or Talley Lightweights. As the DNZ is only 1oz heavier and is a one piece mount I went that route. I have used DNZ before and found they provide a solid platform for a lightweight set up. I am sure the Talley's would have worked as well. Trigger was good to go IMO, the two stage took a bit of getting used to but it breaks nice and clean with no creep at 2.5 lbs. Aftermarket options are available if someone was so inclined.

I agonized over scope options for some time. I looked at the SWFA 2.5-10x32 (9oz and on backorder), Leupold VX-3HD 2.5-10x40 ~13oz, Maven RS.2 ~ 12oz, and Trijicon 3-9x40 ~ 13oz. I liked the reticle on the SWFA so placed a back order but knowing it could be many months and being inpatient I also ordered the Trijicon. The battery free illumination on the Trijicon is awesome and the scope is robust with excellent glass. When the SWFA arrives I can do a side by side and decide which one wins. I have had one prior Leupold with CDS which had issues with RTZ. I liked the Maven but felt the Trijicon had better glass, field of view and low light performance.

The finished rifle weighs in at 6lbs 4oz. I have upgraded aluminum bottom metal on order to replaced the factory plastic.

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All assembled it was time to get some rounds down range. Recoil is pretty mild in the 6mm ARC even in a lightweight platform. I was getting 2700 FPS with the Hornady Precision Hunter 103gr rounds. When I can get my hands on some small rifle primers I will be handloading this with some 88gn Hammer Hunters and hope to be able to get around 2900 FPS. For now the Hornady Precision Hunter shoots right around 1-1.25 MOA. I have definitely noticed that it is more challenging to steady the crosshairs on a lightweight rifle. Further practice on my part should also yield accuracy improvements. That being said 1 MOA is more than adequate in this hunting set-up that is limited to 400 yards. Will sight in for 200 yards, 6" holdover at 300 yards, 12" at 350 yards. The bottom post of the Trijicon Duplex is 4.3 MOA which is perfect for a 400 yard hold. If I end up keeping the Trijicon long term I will get a Kenton Turret to give me the option to dial if needed.

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jamesmc8

jamesmc8

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Joined
Oct 26, 2021
Messages
259
Sweet gun man. Looks like a super fun project. Thanks for sharing!
Thank you! It was a fun project, not a a true need but will come in handy for some of those bigger days and extended trips.
 
Joined
Dec 13, 2017
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575
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SE AZ
That vertical grip stock looks great! I wouldn't mind having one on one or both of my Howas, but the standard factory second Stockys carbon stock works fine for now.
 

JP100

WKR
Joined
Dec 20, 2013
Messages
1,227
Location
South Island New Zealand
Nice!
The Howa minis are pretty cool wee guns. Ive got one in .223 in the shitty plastic chassis and one in 6.5 grendel for my mum, just waiting on a carbon stock for it!
 
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jamesmc8

jamesmc8

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Joined
Oct 26, 2021
Messages
259
That vertical grip stock looks great! I wouldn't mind having one on one or both of my Howas, but the standard factory second Stockys carbon stock works fine for now.
Probably worth watching Stocky's as eventually they might start adding them to the seconds as well. $550 is a bit steep for what it is. $299 would be a more fitting price tag :)
 
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jamesmc8

jamesmc8

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Oct 26, 2021
Messages
259
Nice!

The Howa minis are pretty cool wee guns. Ive got one in .223 in the shitty plastic chassis and one in 6.5 grendel for my mum, just waiting on a carbon stock for it!

Fun little rifle for sure! The carbon fiber does take it too another level. There are some interesting aluminum chasis options out there too.
 
Joined
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Fort Worth, TX
I built a 223 mini in a “factory second” stockys VG with a 16” barrel. It’s fun and handy. Before you swap the bottom metal look at modifying the mag. Mine holds 6rds easily and feeds perfectly and I don’t have to problems with it dropping mags like other users.

My stock took some TLC to get right too, I’m bout to cut 2.5” off the LOP and instal a DIY LOP adjustable but pad. I’ll make a post about that when I’m done. It’s for the kids. ….and dad.

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Sent from my iPhone using Tapatalk
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Adjustable but pad:
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jamesmc8

jamesmc8

Lil-Rokslider
Joined
Oct 26, 2021
Messages
259
I built a 223 mini in a “factory second” stockys VG with a 16” barrel. It’s fun and handy. Before you swap the bottom metal look at modifying the mag. Mine holds 6rds easily and feeds perfectly and I don’t have to problems with it dropping mags like other users.

My stock took some TLC to get right too, I’m bout to cut 2.5” off the LOP and instal a DIY LOP adjustable but pad. I’ll make a post about that when I’m done. It’s for the kids. ….and dad.
Sweet looking set up! Is that an NXS up top? I'll look into the magazine adjustment. Thanks
 

MThuntr

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Apr 10, 2015
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SW MT
Nice I didn't know they had them in 6ARC. I've been staring at one in 6.5 Grendel at Brownells and now I see the 6ARC is out of stock. That would be a fun shooter.
 
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jamesmc8

jamesmc8

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Joined
Oct 26, 2021
Messages
259
I think either would work well but felt the 6 ARC had a slight edge for my needs. I placed a backorder thru Brownells and it shipped about 6 weeks later.
 

XFrog

FNG
Joined
Dec 5, 2021
Messages
39
I mouthed off in the other thread before seeing you already had the Vg2. Sweet setup. I get the Vg2 in the raw for 400$ since it requires some fitting. I pillar bed it and epoxy float. Add flush mount cups and a sponge job followed by 2k matte clear and it looks better than my alpine hunters.
 

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jamesmc8

jamesmc8

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Oct 26, 2021
Messages
259
I mouthed off in the other thread before seeing you already had the Vg2. Sweet setup. I get the Vg2 in the raw for 400$ since it requires some fitting. I pillar bed it and epoxy float. Add flush mount cups and a sponge job followed by 2k matte clear and it looks better than my alpine hunters.
Nice finish work! Was contemplating one of these for my Savage Ultralight 280 AI. I also have one of the Mesa Precision stocks on my Tikka and it was pretty much drop in with better finish so was leaning that way but may reconsider the VG2 as I don't mind some DIY action.
 

Unckebob

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Joined
Aug 21, 2022
Messages
922
All assembled it was time to get some rounds down range. Recoil is pretty mild in the 6mm ARC even in a lightweight platform. I was getting 2700 FPS with the Hornady Precision Hunter 103gr rounds. When I can get my hands on some small rifle primers I will be handloading this with some 88gn Hammer Hunters and hope to be able to get around 2900 FPS. For now the Hornady Precision Hunter shoots right around 1-1.25 MOA. I have definitely noticed that it is more challenging to steady the crosshairs on a lightweight rifle. Further practice on my part should also yield accuracy improvements. That being said 1 MOA is more than adequate in this hunting set-up that is limited to 400 yards. Will sight in for 200 yards, 6" holdover at 300 yards, 12" at 350 yards. The bottom post of the Trijicon Duplex is 4.3 MOA which is perfect for a 400 yard hold. If I end up keeping the Trijicon long term I will get a Kenton Turret to give me the option to dial if needed.

I don't plan to use my 6ARC for hunting, but I got just shy of 3000 fps with a 95g TMK and Leverevolution. (I had the TMKs on hand for my 243) Hopefully, you get there with you Hammers
 

eric1115

WKR
Joined
Jun 26, 2018
Messages
583
I built a 223 mini in a “factory second” stockys VG with a 16” barrel. It’s fun and handy. Before you swap the bottom metal look at modifying the mag. Mine holds 6rds easily and feeds perfectly and I don’t have to problems with it dropping mags like other users.

My stock took some TLC to get right too, I’m bout to cut 2.5” off the LOP and instal a DIY LOP adjustable but pad. I’ll make a post about that when I’m done. It’s for the kids. ….and dad.

ec8e4c319e53cbf9e36da17288ca81e3.jpg



Sent from my iPhone using Tapatalk
b1b70196c00968d345fb73d25985bba9.jpg

5cf44ecd458a07adf416da75425dffd7.jpg
5ca64eb9ebbd7d9cdf82944b8cd62540.jpg


Adjustable but pad:
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What butt pad is that? Looks like a sweet option for a kid's gun! I just got a 6 arc mini for my kids and plan to do a mtnboomer stock treatment, and would love to put something like this in it!
 
Joined
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Location
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What butt pad is that? Looks like a sweet option for a kid's gun! I just got a 6 arc mini for my kids and plan to do a mtnboomer stock treatment, and would love to put something like this in it!

DIY

Repurposed DSLR camera video rigging clamps from Amazon. Can’t remember exact search terms that got me there but start with “smallrig” or “15mm camera tube”

When it’s complete I’ll make a detailed post with lots of pics and links

Sent from my iPhone using Tapatalk
 

BBob

WKR
Joined
Jun 29, 2020
Messages
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Southern AZ
Guess you just have to check the site often?
Random thoughts on the matter: In my experience you just order them and they show up in a reasonable amount of time. Sometimes what you want isn't on the site so you need to email or call to order. My last one that was listed showed backorder but shipped the next day. Call or email and ask if you don't see what you want. They usually answer pretty quick.
 
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