It Starts.....

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adcoch1

adcoch1

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Oct 2, 2015
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Centralia Washington
My budget is so screwed...
20180531_112351.jpg

First step done.
Looking at KAK valueline barrels,
https://www.kakindustry.com/ar-15-p.../contract-458-16-inch-carbine-melonite-barrel
Looks like they have a bolt for around $90 as well. Gonna mill out the ejection port on an upper myself to save a few bucks, and I already have an Odinworks tuneable gas block for it. I may go with a dissipator look with a magpul rifle forend, but not decided yet.

What I really can't decide is weather to build a carbine upper or a pistol length upper for my SBR lower with this barrel,
https://www.kakindustry.com/ar-15-p...ls/contract-458-8-inch-pistol-melonite-barrel

So, feedback anyone?
 
I'd go with a carbine sized build. honestly I think 18" with no muzzle device makes more sense than a 16" with a brake. The .458 operates at such a low pressure brakes don't do a whole lot for recoil reduction.
That said I LIKE the way muzzle devices look on AR type rifles.

Either way your gonna have a blast with the .458 trust me
 
If it didn't cost $250 MORE dollars for an 18" barrel I'd probably go that route. I don't think I NEED a brake, but muzzle treatment would look pretty cool on a dissipator. My brother just showed me a Yankee hill brake that would look great... I will be building both rifle and sbr uppers, but which one first....
 
Coal Dragger said:
There’s enough gas volume there to make a brake work just fine.
Click to expand...
I didn't notice any difference brake on or off on my upper, could have just been me tho.

adcoch1 said:
If it didn't cost $250 MORE dollars for an 18" barrel I'd probably go that route. I don't think I NEED a brake, but muzzle treatment would look pretty cool on a dissipator. My brother just showed me a Yankee hill brake that would look great... I will be building both rifle and sbr uppers, but which one first....
Click to expand...
YHM does make some nice stuff!
I didnt know they had a brake for the .458, should be pretty nice tho.
 
The brake is actually for a 308 bore, but the thread size ia the same as the muzzle threads, I'd just drill it through. Yeah its nice, and only 65 bucks. I have a big hunk of stainless steel that might just get thrown in the lathe to make my own though.. We'll see once I get a barrel, and some brass and bullets. Probably gonna have to pick up some powder too. I love this addiction... Er ...I mean, hobby...
 
So today I pulled the trigger and ordered two barrels, one 16" and one 8" from kak industries. Also 100 starline brass. Gonna have to get some bullets, I only have a small handful of 405 grn cast sitting around. I am waiting for restock of a toolcraft bcg I found on a deal at Arm or Ally, so when those come in I will pick those up too. Just gotta decide which one to build first...
 
I have it in spades... Got to build a few uppers for my brothers recently, and I'm building up a few dream guns for myself. Yep, it's a fever all right....
 
Pfft fever my butt, AR building is a chronic disease.
I literally have NO reason to want to do the build I've currently got rattling around in my brain, but I'm still probably going to do it.

Logic also tells me to do the .450 Bushmaster instead of the .458.....but I just found one of my 300gr nosler balistic tips floating around in my random crap drawer. Scraped common sense soon as I picked it up.
 
I'd LOVE LOVE LOVE a .50 Beo AR but even reloaded ammo is just incredibly expensive for that caliber. I just use my 870 loaded with slugs.
 
Venom007 said:
I'd LOVE LOVE LOVE a .50 Beo AR but even reloaded ammo is just incredibly expensive for that caliber. I just use my 870 loaded with slugs.
Click to expand...
Major cost for the big boys are the cases, be diligent on picking them up and don't run stupid hot loads, and they last a really long time. The big bore AR rounds are basically pistol class loads, so they arnt horribly rough on brass, it's dents dings and loss that accounted for most of my brass expenditures.
Shooting jacketed bullets can be expensive as well, but good cast n coateds are available at very reasonable prices.
My .458 shot the 405mbcs pretty well, but I think they we're undersized and leaded up my bore, and brake, something awful. My gas system tho stayed clean.
 
Barrels and brass came in, very nice finish on the barrels. Bolt carriers may be here tomorrow if I believe the tracking report, and hitting the gun show for some small parts tomorrow as well. Still need to decide on a forend for the SBR upper...
 
Bolt carriers are here! And I got up to cabelas to pick up a few different bullets, some ftx 325 grn and some Berry's 350 grn. Hope the Berry's work ok, they are a truncated single radius with about a half caliber meplat. Should work ok.

I still need to get a forend for both builds, and charging handles, dust covers, etc. How do you guys feel about the cartridge marked dust covers? I also need one more upper casting and to modify the ejection port so the brass can exit. Lotta little stuff but the big parts are here!

Ps, I will get pics going when I have a minute...
 
I always liked the marked dust covers, 'cept i dont rely like dust covers.....
Is it bad i wanna see these done....NOW!?
 
the best part about a 458 it will kill anything going any speed and meat loss is not very much i shot a Russian bore with my 45/70 mauser with 60 grains 30-31 with a 405 jsp and no meat loss. wish i could make a copy of the the hunt on the computer to show u guys.
 
I have a 10.5” .458 soc barrel sitting on my rack, among 6 other barrels, and I just ordered 3 more this week. The barrels aren’t what I consider to be the problem, it’s the pile of lowers which really gets expensive. I ordered TWO lowers a couple months ago, when they came in, the shop mentioned he’d gotten 5, and they all had sequential serials... I couldn’t bear breaking up the set. But I already had 3 others on hand for projects... plus a trio of unfinished revolvers and a Marlin 60 SBR project action waiting in the wings...
 
LoonWulf said:
I always liked the marked dust covers, 'cept i dont rely like dust covers.....
Is it bad i wanna see these done....NOW!?
Click to expand...
I am just as impatient as you, I want to shoot these! The funny thing is this disease comes in waves, I also got my bedding compound for my 35 whelen build and a few other small projects, still need to finish my suppressor, and I have two 300 blk uppers I'm doing custom work on

The next thing on the 458 uppers though is forends. I am building a dissipator on the 16" barrel, and I need to get a rifle length magpul moe grip. I also need to get a bolt on front sight since my Fmarked a2 sight is just way too loose on the barrel, and I don't wand to shim it.
For the pistol/SBR barrel, I want to run a Fortis REV 2 carbine length grip, but a friend of a friend works there and may be able to get me a cheaper price, so it isn't just money, but logistics to get these finished... I am like a kid at Christmastime though... So excited!
 
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