AR-10 rifle questions

rob b · Jul 19, 2017

I am interested in buying an ar 10 but so many options it hard to know which to buy or build one ?
Looking for a reliable accurate rifle on a budget if possible

Also what kind of accuracy should I expect in the 100-400 yard range optics will be a Leupold 3-9 or nikon perhaps

Thanks

j_h_smith · Jul 19, 2017

Too many variables to give you any type of accurate answer. I'm guessing 1-4 moa depending on so many things, I won't list them all. Ammo is awfully important when you get out to those distances.

Good Luck!

camobob · Jul 19, 2017

I'm not an expert but have seen several rifles on sale lately that are cheaper than building it. AR10 parts aren't as standard or plentiful as the AR15s

rob b · Jul 19, 2017

I won't skimp on ammo or optics never do
Hope to find something that can hit deer at the most 400-500 yards if need be
But most shots at 50 to 250 yards are normal

Magnumite · Jul 19, 2017

I had a DPMS Classic 20" HBAR LR-308. Using generic 147 grain ball groups of 2" - 3" were routine at 100 yards. The 2" end of those groups were typically ZQI and Federal white box. I was definitely the limiting factor in its accuracy.

rseymorejr · Jul 19, 2017

If you decide to build, be aware that AR10 parts aren't all compatible, like At 15 parts. Make sure your lower mates with the upper. That was a $150 lesson I learned when I built mine.

Sirex · Jul 19, 2017

I have been lusting after a Ruger SR762 for a while, but it's so $$$ away.

lazarus · Jul 19, 2017

What parts is the answer on accuracy. Similar to the answer for what accuracy can you expect from an AR-15. A DI gas system helps with accuracy as the recoil impulse is inline with the bolt instead of trying to tilt the bolt.

My AR-15 can manage a little below MOA at up to 200yds with match ammo. I haven't shot it further than that on paper (300yds on steel, but I wasn't measuring group sizes). Cheap ammo could be as bad as 4MOA with it and most good quality .223 and 5.56 55gr stuff is in the 2-2.5MOA range.

There are plenty of AR-15s that can do better, plenty that can't manage better than 2MOA with match ammo.

An AR-10 you'd likely find the same thing. Cheap, low quality or generally not accurized stuff and you'll have a 2-3MOA rifle at best. A fairly decent one is likely capable of a little under MOA with a match/matched ammo. A really high quality one might be a one home wonder.

davsco · Jul 20, 2017

i had a stock dpms lr-308 24" heavy barrel (with geissele 2 stage added) that was definitely sub moa out to 600 yds (the furthest i measured it). they can be plenty accurate. very heavy rig though, not something you're going to traipse thru the woods with.

OLM-Medic · Jul 21, 2017

rob b said:
I won't skimp on ammo or optics never do
Hope to find something that can hit deer at the most 400-500 yards if need be
But most shots at 50 to 250 yards are normal

A decent AR10, AR15, or pretty much any hunting rifle, will be well fine out to those mid ranges with decent ammo.

You're more likely to miss because of an error in adjusting for your drop than because the rifle was inaccurate. Known your dope.

paperwork351 · Jul 21, 2017

What's the difference between type A and type B mags? Armalite seems to take different ones than a DPMS.

lazarus · Jul 21, 2017

paperwork351 said:
What's the difference between type A and type B mags? Armalite seems to take different ones than a DPMS.

One works in armalite pattern, one works in DPMS patterns. I forget which is which, type A is Armalite? Anyway, PMAGs are DPMS pattern (DPMS pattern mags are also called SR-25)

judah7 · Jul 21, 2017

rob b said:
I am interested in buying an ar 10 but so many options it hard to know which to buy or build one ?
Looking for a reliable accurate rifle on a budget if possible

Also what kind of accuracy should I expect in the 100-400 yard range optics will be a Leupold 3-9 or nikon perhaps

Thanks

You can get a whole complete rifle for under 800 now day's, that's the route I'm taking.

rob b · Jul 21, 2017

judah7 said:
You can get a whole complete rifle for under 800 now day's, that's the route I'm taking.

really looking at that route myself

Clifjr · Jul 21, 2017

Check out High Rocks sale https://www.mdshooters.com/showthread.php?t=212888

yellowfin · Jul 21, 2017

Adams is pretty decent for the price as well. Haven't tried the Savage yet but want to.

judah7 · Jul 22, 2017

https://www.sportsmansguide.com/pro...ester-762-nato-16-barrel-201-rounds?a=2149951
https://www.budsgunshop.com/catalog/mobile/product/75794/redirect

These are the two im looking at. I am going to pick one or the other....

Those PSA one's for 600 buck's is very intriguing though.

Striper69 · Jul 22, 2017

rob b said:
I am interested in buying an ar 10 but so many options it hard to know which to buy or build one ?
Looking for a reliable accurate rifle on a budget if possible

Also what kind of accuracy should I expect in the 100-400 yard range optics will be a Leupold 3-9 or nikon perhaps

Thanks

You can get a rebate if you buy the DPMS 308 before the end of the month.

Mine shoots nice!

bfoosh006 · Aug 19, 2017

The PSA PA10 Gen II is a heck of a deal.. I like mine.

That said... bear in mind your barrel is gonna be "ok"

2-3moa... I will be changing my barrel soon.

If anyone is interested.. I have a thread going on about the carbine over here...

https://forum.308ar.com/topic/15124-pa10-nitrated-18-nb-bcg-gen-2-observations/?page=4

edrod68 · Aug 19, 2017

Sirex said:
I have been lusting after a Ruger SR762 for a while, but it's so $$$ away.

I bought one of the first run of those...it has run flawlessly....and is very accurate.

I made a few changes, swapped out the trigger for an ALG trigger, Magpul ACS-L buttstock and a VG6 Gamma muzzle break. Recoil is flatter now and trigger helped.

But very accurate (sub moa to 200 yards with my 150 fmj handloads).

AR-10 rifle questions

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