AR Accurizing question

[spareparts]

I have a couple of AR 15s and for the most part I've been fine with their accuracy for plinking and punching paper. Until I took out my M1A last weekend. My M1A with cheap plinking reloads and irons out shoots my ARs with optics and quality ammo.

The M1A is a National Match with all original hardware.

AR #1 is a CMMG 16" upper on Stag lower with DPMS LPK. Using a Nikon Monarch with a one piece American Defense mount. Irons are standard FSB and GG&G buis.

AR #2 is a Bushmaster 20" Gov profile barrel (can't remember the receiver make) assembled by Randall on a Stag lower with DPMS LPK. Bushnell 3200 with a one piece American Defense mount. Irons are standard FSB and GG&G buis.

To tighten up my AR groups should I be looking at a trigger upgrade?

[not-fishing]

I have an M1 Garand with a crummy trigger and a good barrel that shoots crummy.

I love my AR's Geissele trigger but their pricy.

I "assembled" my own rifle and I'm a hack using a White Oak Service Rifle Upper with their precision pinned rear sight and target crown. Thank you Cal Guns

My next project I'd like to use one of White Oaks 6.8 barrels for a Politically Incorrect deer rifle.

(http://www.whiteoakarmament.com/)

[spareparts]

I have an M1 Garand with a crummy trigger and a good barrel that shoots crummy.

That makes sense, one of my Garands with a crummy barrel and good trigger shoots just fine. Missing the last inch of rifling and the crown is completely destroyed but can hit a 36" gong at 500 yards all day long.

I figure I'll work on barrel upgrades when the current barrels are shot out and need to be replaced, but for now I'm leaning toward triggers.

Will a Jard or Timney work? I'd still like to keep the ARs SHTF ready so I don't want to upgrade to anything that would be prone to failure or need too much maintainence.

[Hayashi Killian]

There's all kinds of things you can look at to increase accuracy. Trigger upgrades help, but they're more of a fine-tuning option. Other things to look at are barrel lengths, barrel twists, ammunition caliber and grain, a free-float handguard or rail system, and more. Frankly, if you're looking more for a match rifle, you should start looking at those others options before you look at the trigger. A good free-float rail system can cost as much as a high-end trigger system, like a Geissele, but the benefits can be more readily apparent.

Your M1A fires a much heavier and higher velocity round, which lends itself a lot to accuracy. The AR-15 fires a much lighter and slower bullet. Generally speaking, the .223 has a range of about 500m, barring heavier bullets, custom loads, newer bullet types, and more. At that point, the round has lost velocity and a small wind will disturb the flight path significantly. Whereas the .308 fires at a much higher velocity, enabling it to go further before speed is lost, and the heavier round means it is more resistant to changes in wind. The barrel is also much longer, which (to a point) assists a lot in accuracy. A 16" barrel is fine, but you will see much more accurate patterns with a 20" barrel on your AR-15. Also, if you're firing 62gr projectiles out of a 1:9 twist barrel, your accuracy won't be as good as if you had fired them from a 1:7 or 1:8 twist barrel. Or a 40gr from a 1:7 barrel.

In short: there are a LOT of factors that make up how accurate something is.

[spareparts]

Frankly, if you're looking more for a match rifle, you should start looking at those others options before you look at the trigger.

No, I'll build the match rifle one day when I have more time to frequent the range. As it is I get out about 4-6 times a year.

I'd just like to work toward the best potential of a service rifle.

[smarter]

(http://www.whiteoakarmament.com/)

ftw!!

I got a wylde chamber 16" 1/7 twist stainless steel barrel for my AR, couldn't be happier. Shoots darts like lazer *pew pew*

[1911su16b870]

Another thing I can attest to is handloading a few bullets with powder in 0.5 grain increments through the recommended published ranges. Then go to the range and carefully bench rest shoot each 5 round loading and select the most consistent. I have seen some combos are really sweet and accurate for that rifle (0.25 MOA).