I was happy that someone else answered before me, cause when I saw the "minute of man" accuracy I was unclear on your expectations. So recently I posted a thread asking about scopes and set the expectation that I would be hitting man sized targets out to 700 yards.

Then the other day I came upon this target at 250 yards. Only the headshot was colored, being the area you were to shoot. It was now obvious that everyone here was right and the Trijicon Accupower is the right way to go. So my point is, plan to shoot a minimum of 1/1.5 MOA.

Second PSA, they are okay. I would still go with Aero, their lowers have a set screw that allows you to make sure you have a tight fit between the lower and upper.

quote:

Originally posted by RNshooter:
Later, in case I want something closer to 1 MOA, does PSA make any uppers that could do that? If not, is there another company that makes accurate uppers that would mate to a PSA lower or would it be a case of buying a complete (and spendy) rifle elsewhere?

I don't know if PSA's best uppers are capable of great accuracy. Just guessing -- probably acceptable accuracy by not great accuracy. Those with a PSA AR-10 upper would have to weigh in. Understand that great accuracy isn't a once-in-a-blue moon 3 shot group. Nor is it described with "all day long, if I do my part". Great accuracy is consistent -- shot after shot, group after group, month after month.

I suspect there are companies that offer uppers that mate to the the PSA lower. Maybe a better option is to find who makes PSA upper receivers, then buy that upper receiver. Receiver only, so you can add your own components.

If you want a truly accurate AR-10, start with a great barrel. Krieger, Bartlein, and JP should be on the short list. Buy a blank barrel -- i.e. one that isn't chambered. Determine the caliber and ammo you expect to use, then have a talented 'smith cut the chamber for your expected ammo. Add a quality BCG, and have your talented 'smith put it all together.

Don't know if it has changed much but when I built my three Mega MA TEN's a few years ago DPMS seemed to offer the most compatibility along with better availability.
DPMS

Last year I built a 6.5 Creedmoor on a Spikes 308 receiver set, JP barrel, handguard, bolt/lite carrier and captured recoil spring. I also went with the Super-dynamic Enhanced Geissele trigger, PRS stock and Leupold Mark 4 ER/T 8.5-25x50 for glass. It was comparable to my SR25 match and would hold 2.5" to 3" at 500 yard pretty easily.

Since DPMS is one of the "standards", what about buying an entry level DPMS for my plinking uses? Would that make it easier to match up a higher dollar/more accurate upper later?

Bruce

quote:

Originally posted by RNshooter:
Since DPMS is one of the "standards", what about buying an entry level DPMS for my plinking uses? Would that make it easier to match up a higher dollar/more accurate upper later?

Bruce

You might be able to change out the barrel but I don't think anyone else's upper will interchange ... I know my KAC, Spike's and SiG wouldn't. There are no standards in the "10" world like the 15.

quote:

Originally posted by GroundedCLK:
If you decide to go Aero completely as they are great rifles. Just a word of advice there complete rifle in 6.5 with a 24” barrel was $1709. I bought their complete upper for $548 and their complete lower for $515. Both at different times and BCG/Charging for $189. All said and done everything built by them was well under their built rifle price.

Yep, you can put one together much cheaper than buying complete. Part of this is due to the 11% excise tax on firearms. If you buy a complete firearm, that 11% tax is built into the price. If you build it, no extra tax on the parts (just sales tax). Part of it is also paying for assembly labor, and/or for warranty. Some places offer a lifetime warranty on a complete rifle, but you are mostly on your own if you build it. Warranties are built into the price.

This is interesting/helpful from POF:

differences among AR-10's vs. 'Intermediates" vs. their new "Revolution.


https://pof-usa.com/revolution-comparison/



Did you grab a copy of the Shooting Illustrated article?

https://www.shootingillustrate...-potential-pitfalls/

Good article. Thanks for pointing it out.

Bruce

quote:

Originally posted by ruger357:
I tried several and ended up with a scar 17. Best decision ever.

Where did you find one?

I've been looking and the only ones I've seen are on auction sites. I'm a bit nervous about sending someone $3000 and hoping to get a rifle in return.

quote:

Originally posted by RichardC:
RNShooter,

"Shooting Illustrated", August 2018, p. 64,
'Big AR Is Better', by Steve Adelmann.

Great article! Thanks for the heads-up!

I’m real happy with my Adams Arms small frame .308

Didn’t “build” it but it shares many of the “standard” AR parts for modification (trigger, stock, grip, etc.) pretty much everything but upper/lower/BCG/barrel is standard AR fit.

Uses the Magpul and Lancer mags.

quote:

Originally posted by Gustofer:

quote:

Originally posted by ruger357:
I tried several and ended up with a scar 17. Best decision ever.

Where did you find one?

I've been looking and the only ones I've seen are on auction sites. I'm a bit nervous about sending someone $3000 and hoping to get a rifle in return.

I completely understand your hesitance ... Gunbroker was less than a year old when I won an auction for an HK SR9 for $1,800 this was in 1998 IIRC ... to a pawn shop 2300 miles away with like 3-4 positive feedback ... To date I've compleated several hundred auctions and have only been even slightly disappointed on used items a couple times, usually it's better than described, I'm talking about guns and/or parts ... I've heard "horror stories" but usually it's a shipping thing.

I have an Armalite AR10A4with a 3x9 Loopy on it. Using that mediocre Greek 147 gr, at 100 yards I can hit a hanging golf ball every time. Don't write off Armalites.