Question - Remington 700 in 458 SOCOM??

[Dutchninja]

Anyone own a 700 in 458? I'm thinking about building one. I like my AR in it, but was thinking about going heavy subsonic / super quite hunting or whatever.

KAK 16 barrel
Magpul detachable trigger guard to take ACIS mags I already have
Houge stock (which I have and started this, i'll fit the trigger guard)
stripped short action receiver

Thoughts?

[richmanpoorman]

Be a lot cheaper to buy a 458 winchester and load it down.

[Dutchninja]

suppressors waiting in ATF jail can't handle 458 win mags if I want to go super sonic... Otherwise i would agree

[Nobade]

Should work just fine. Though looking at the load data, if you load the 458 win mag to the same pressure as the 458 socom you'll get almost identical performance and powder charges so the can shouldn't have any problem with it. Full 458 win loads will be a good 20 grains heavier though...

I had been thinking of doing one in 450 Marlin, but since you are already set up with the brass, mags, etc I'd say you're on the right track.

-Nobade

[BK7saum]

I thought about a 458 socom in a 700, but didn't care for the brass softness. It is rated at about 38k or so, and if I was running it in a bolt gun, I'd like to wring it out at 55-60k kinda like no.1 ruger loads in 45-70. I had brass, dies, and an AR upper. Case head expansion was a bit much at saami spec loads. I don't think you could push the socom brass in a bolt gun.

For your application, it should work fine. I just wanted to go a little further with it and don't think it would have held up.

So I'm going with the 50 razorback instead. The RUM case is a high pressure case to start with, so no problems there. Just need to build me a form 1 .50 suppressor ot buy a Bowers Vers50.

[BK7saum]

Brass should stay readily available since starline makes some of it.

[jmorris]

I have a .308 Remington 700 that I bought intending to convert to 458 socom. I don't know another round that you could convert to .458 using a short action and 308 family bolt. I will be using the same suppressor that I built for my AR .458 when I get around to it.

let us know what you come up with.

[nvreloader]

Guys
Question for you,
What is the internal magazine maximum length?
Would a 458 fit and feed?
I don't own a SA 700.

Tia,
Don

[BK7saum]

2.850" I think is standard. The 458 socom fits a 5.56 AR magazine, so there are no issues fitting in a 308 remington 700. You could even shoot longer heavier boolits out of a remington 700.

[BK7saum]

As far as feeding, you might consider a single center feed magazine instead if the internal staggered box magazine for blunt or FN boolits.

[Dutchninja]

I checked with a magpul ACIS style mag and a steel ACIS, they look like they would feed fine using my 700 in 308. There is a lot of room on the front of the mag that could possibly be a problem. I know they make bottom metal that takes ar mags, but doesn't look as clean.

anyone got a used 700 for sale???

[BK7saum]

I checked with a magpul ACIS style mag and a steel ACIS, they look like they would feed fine using my 700 in 308. There is a lot of room on the front of the mag that could possibly be a problem. I know they make bottom metal that takes ar mags, but doesn't look as clean.

anyone got a used 700 for sale???
Chirodr1 has had 700 actions for sale at good prices in the past. You might PM him and see if he currently has any. I don't care for the flimsy plastic stocks remington sells and end up replacing those anyway. If you can find a 700 at Dick's or Academy, would be another option. I've bought 243 and seen 308 SPS for sale for $400-$425 at different times. Good luck.

Y'all are making me wish I'd kept my brass, dies, and mold for the socom.

[mcdaniel.mac]

Any reason not to go with the .450 Bushmaster in a Ruger American?

[dragon813gt]

Any reason not to go with the .450 Bushmaster in a Ruger American?

Stupid low comb that's designed for irons but the rifle doesn't have any. I have one in 300BO and it annoys me to no end. Granted, they're cheap rifles. But having to replace the stock to make it work as it should just costs more money.

[mcdaniel.mac]

Stupid low comb that's designed for irons but the rifle doesn't have any. I have one in 300BO and it annoys me to no end. Granted, they're cheap rifles. But having to replace the stock to make it work as it should just costs more money.
I just added a cheek pad. I usually use one anyway to hold the dope card and a spare battery.

[Dutchninja]

mcdaniel - already heavily invested in 458......

[mcdaniel.mac]

mcdaniel - already heavily invested in 458......
Fair enough!

[jmorris]

Any reason not to go with the .450 Bushmaster in a Ruger American?

.450 BM uses .452 pistol bullets the .458 socom uses .458 rifle bullets. If you want to go heavy .458 has a lot more to pick from.

[MarkP]

Chirodr1 has had 700 actions for sale at good prices in the past. You might PM him and see if he currently has any. I don't care for the flimsy plastic stocks remington sells and end up replacing those anyway. If you can find a 700 at Dick's or Academy, would be another option. I've bought 243 and seen 308 SPS for sale for $400-$425 at different times. Good luck.

Y'all are making me wish I'd kept my brass, dies, and mold for the socom.


I have a Dick's flyer from last week Rem 700 Varmint $399 (with $75 Rem rebate) they will price match an ad up to 30 days and will price match themselves.

[Dutchninja]

markp - so then this happens.

189604

[jmorris]

markp - so then this happens.

Keep us up to date on the rest of the journey.

[Dutchninja]

Doing a bit of research I found an instance where someone had issues feeding 458 socom from .308 style AICS mags. He referenced when cycling the bolt the rounds would nose dive into the mag, which was my initial concern when looking at a 458 round sitting in a 308 AICS mag.

my thoughts

1 - try out a stock 308 BDL / follower and drop the idea of a mag fed rifle. I put the action in my houge stock and tried feeding. it obviously will not chamber but the rounds pick up / yet not an indication of full function. still concerned about the extra space up front, even using longer rounds.

2 - replace the follower and mag spacer with a .223 version? Is there a significant difference between these parts and the .308 version?

3 - magpul detachable mag well and use AICS mags in 5.56? I have an AICS chassis i can pull off my other 700 and check.....

4 - PTG bottom metal that takes ar mags. The only problem is they only accept metal mags (no big deal) but requires some modification to the bottom of the receiver and inletting of the stock. (it doesn't look as clean as standard bottom metal

5 - Am i still crazy for thinking about doing this?

saw this the other day, the rounds are much farther forward.

https://www.youtube.com/watch?v=8I7SOdo72ug

[jmorris]

5 - Am i still crazy for thinking about doing this?

I don't know about that but if it looks like it might work I wouldn't worry about trying to "fix" anything.

Install a 458 socom barrel and see, if it turns out to be a problem then pick up where you left off.

[Dutchninja]

ordered the barrel yesterday. Took a look at a 700 at gander mountain (after waiting for 20 minutes standing there) yesterday to look at the difference with the internal mag. I plan on ordering the .223 follower, spring, spacer and block. I think it will feed better using those parts, instead of the 308 follower, because it will be similar to the dimensions it was designed for with Ar mags.

[jmorris]

What barrel did you get and where did you order it from?

[Dutchninja]

KAK - https://www.kakindustry.com/700/kak-700-458-16-mag-blasted

16 inch mag profile threaded