New AR10

[trgglynn]

Hey guys,

I'm new to the forum. I just traded a guy for an AR10 and am a bit confused. When I got it, he told me it fires a .308 round and I got about 150 rounds of hollow points with it. Later I found that the barrel inscription is DPMS 7.62x51 1-10 and the action states Cal Multi. I did some research and don't want to be firing rounds that are going to over pressure my rifle. Whats the deal?

Edited December 25, 2018 by trgglynn

[98Z5V]

DPMS High Rider upper on an Aero Precision lower.  Factory upper with MOE handguards.  That's as far from AR-10 as you can get, right there.  Don't worry about .308 Win vs. 7.62x51 NATO through that barrel. Just find what it likes, and stick with it.

[trgglynn]

I fired about 20 rounds of .308 out of it a few days ago and it seems to shoot pretty good. I don’t know much, if anything I just don’t want to damage it. I’ll stick with the .308 if that is okay to push through it. Is that a typical round for a 10? 

Thanks for the reply, I appreciate all the information.

[98Z5V]

That's the most common chambering for it, yes.  You can find or make these things in just about any caliber that will fit a short-action bolt gun. 

[trgglynn]

Just now, 98Z5V said:

That's the most common chambering for it, yes.  You can find or make these things in just about any caliber that will fit a short-action bolt gun. 

Very cool. Thanks for the heads up on that! 

Also, merry Christmas!

[survivalshop]

Looks like an early DPMS slick side Barreled Upper , the Chamber probably is 7.62x51 Nato & not 308  , which as said , doesn't matter all that much . Probably had A2 Hand Guards from the Factory & someone slipped in a MOE Hand Guard .

[edgecrusher]

9 hours ago, 98Z5V said:

That's the most common chambering for it, yes.  You can find or make these things in just about any caliber that will fit a short-action bolt gun. 

But, I will state this for prosperity, not without a barrel and bolt change.

 

Also, as trivial as it may seem, that is a 308AR, not an AR10- which is strictly an Armalite designation. Reason being is a proprietary part line up, which can cause issues if you start changing parts.

[trgglynn]

5 hours ago, edgecrusher said:

But, I will state this for prosperity, not without a barrel and bolt change.

 

Also, as trivial as it may seem, that is a 308AR, not an AR10- which is strictly an Armalite designation. Reason being is a proprietary part line up, which can cause issues if you start changing parts.

So if I understand, AR10 is “coined” by Armalite, where as a 308AR is a AR firing .308?

[edgecrusher]

Correct. There are three primary platforms using proprietary parts and receiver cuts. 

 

DPMS type

Armalite

Rock River

You typically cannot mix and match without tolerance stacking. 

There is no mil spec for the large frame AR’s

[trgglynn]

11 minutes ago, edgecrusher said:

Correct. There are three primary platforms using proprietary parts and receiver cuts. 

 

DPMS type

Armalite

Rock River

You typically cannot mix and match without tolerance stacking. 

There is no mil spec for the large frame AR’s

Would I be in best interest to stick to DPMS parts? Or should I shy away from Armalite and Rock River and go with others including DPMS? 

I probably won’t mess with the rifle, but I’d rather not waste money down the road.

What would be considered a “small frame”?

Edited December 25, 2018 by trgglynn

[edgecrusher]

So DPMS compatible parts will be fine. If you look into something and aren’t sure, ask. 

 

Small frame is AR15 based rifles. 

 

Large frame, for now is based on 308 receivers and a short action chambering in a bolt gun.

[trgglynn]

12 minutes ago, edgecrusher said:

So DPMS compatible parts will be fine. If you look into something and aren’t sure, ask. 

 

Small frame is AR15 based rifles. 

 

Large frame, for now is based on 308 receivers and a short action chambering in a bolt gun.

Will do, thank you! 

That makes sense. I noticed my .308 is a lot heavier than someone I know’s River AR15.  

What would be considered a long action? Assuming there is such a thing

[edgecrusher]

300 Win Mag, .338 Lapua... plenty more

[98Z5V]

3 hours ago, trgglynn said:

What would be considered a long action?

The exact same calibers that require a long action through a bolt action rifle.  That directly where the long action / short action classification comes from, for ammunition. Read and watch:

https://savagearms.zendesk.com/hc/en-us/articles/214239303-What-is-the-difference-between-a-short-action-and-long-action-

https://ronspomeroutdoors.com/blog/short-action-rifle-versus-long-action/

 

 

 

[trgglynn]

On 12/25/2018 at 5:53 PM, 98Z5V said:

The exact same calibers that require a long action through a bolt action rifle.  That directly where the long action / short action classification comes from, for ammunition. Read and watch:

https://savagearms.zendesk.com/hc/en-us/articles/214239303-What-is-the-difference-between-a-short-action-and-long-action-

https://ronspomeroutdoors.com/blog/short-action-rifle-versus-long-action/

 

 

 

Well that sure answers my question. Thanks. Unfortunately I have more questions now lol.

[98Z5V]

Fire those questions off - we're here for it.  Someone knows something about what you want to ask, for sure here, and you'll definitely get the answers you need. 

[trgglynn]

On 12/28/2018 at 7:31 PM, 98Z5V said:

Fire those questions off - we're here for it.  Someone knows something about what you want to ask, for sure here, and you'll definitely get the answers you need. 

I appreciate that! The only question I have at this point is about different rounds, but it seems like there’s no standard in the names, and I’ll just have to take time and attention to detail to learn about rounds. Seems simple, but there’s a lot of details.

[98Z5V]

15 minutes ago, trgglynn said:

I appreciate that! The only question I have at this point is about different rounds, but it seems like there’s no standard in the names, and I’ll just have to take time and attention to detail to learn about rounds. Seems simple, but there’s a lot of details.

.308 Winchester seems to be your primary caliber - from your first post.  99% of these things are for that caliber, even if they're marked 7.62x51 NATO - that's just the military specification for .308 Winchester.  Usually, if you want to go outside of that caliber - you have to hunt for it, and it's not an accident. 

When you find some parts that you want, just post up a link to them and ask away.  We'll help. 

[trgglynn]

7 hours ago, 98Z5V said:

.308 Winchester seems to be your primary caliber - from your first post.  99% of these things are for that caliber, even if they're marked 7.62x51 NATO - that's just the military specification for .308 Winchester.  Usually, if you want to go outside of that caliber - you have to hunt for it, and it's not an accident. 

When you find some parts that you want, just post up a link to them and ask away.  We'll help. 

Ding ding ding. Light bulb on. Thanks for that info, clarified a lot. .308 would be my primary unless 7.62 is found cheaper. Sweet, thank you I will! Again, I appreciate the knowledge. Thank you.