What is your favorite AR-10 7.62 Load?

[Baer45]

I am getting ready to start loading for an AR-10 and realize as it is a gas system different powders come into play. I am shooting a Noveske with a 20 inch barrel. Not sure of twist rate which someone here might know...anyone that has any input, will be greatly appreciated.....

 

[Jet]

Twist should be visible on the barrel somewhere. Look near the compensator/flash suppressor/muzzle. If you can't find it, it's pretty easy to measure with a cleaning rod and tight fitting brush or patch.

 

[Zero333]

Use the M1A load.. 41.5 H4895 with 168 bullet in military brass. or 42 gr with Commercial brass. It's guaranteed to work well.

168 smk is the best bang for your buck unless you're planing on going beyond 750 yards.

 

[Baer45]

Thanks, that is what I was looking for. I was thinking 4895 for a powder. I could not get Federal Gold Medal Match 168 to shoot well out of the gun, but 147 gr German Dag NATO was drilling it... so I figured it must be a powder issue. I forgot to Cl twist before doing post..

 

[mike06]

In my two AR10's 41.0 grains of ArComp with a 175 grain Nosler Custom Comp is my best load. 43.0 with a 168. All Lake City Brass

 

[Pawnee Bill]

Do you run an adjustable gas block? If not you may want to invest in one as it helps with brass not being chewed up as bad.

 

[centerlineseal]

Don't forget to use the "small base" resizing dies.

 

[DocBII]

Baer45,

41.5 of VV N-140 with CCI 7.62 primers pushing Hornady 178 ELDs works well out of my 20" DD upper. Might get iffy @ 1k, but very low vertical in my testing to 600.

HTH,
DocBII

 

[SPQR70AD]

Don't forget to use the "small base" resizing dies.

I shot 1000's of reloads out of semi auto rifles never used small base dies. I have seen tight chambered match rifles where some have needed small base dies

 

[centerlineseal]

I shot 1000's of reloads out of semi auto rifles never used small base dies. I have seen tight chambered match rifles where some have needed small base dies

We do have a Krieger barrel on our DPMS AR-10. Absolutely requires small base dies. We learned that the hard way! (Had to pull bullet and powder for 100s of rounds to resize) YMMV

 

[Baer45]

Thanks all the info. I have a good adjustable gas block. It appears H4895 might be a powder fora gas system in addition to those mentioned in post. Zeidickers (sp) has some helpful info. Slower powders like imr 4064? Might work well, but why beat up the gun? 1:10 twist

 

[SPQR70AD]

We do have a Krieger barrel on our DPMS AR-10. Absolutely requires small base dies. We learned that the hard way! (Had to pull bullet and powder for 100s of rounds to resize) YMMV

that is horrible. I hate to say it when I load for any semi I check to see if it chambers. don't you have another 308 to use those rounds in? that is a lot of work taking them apart

 

[centerlineseal]

that is horrible. I hate to say it when I load for any semi I check to see if it chambers. don't you have another 308 to use those rounds in? that is a lot of work taking them apart

Yeah. Lesson learned, ... quite a while ago.

 

[tygranch]

Use the M1A load.. 41.5 H4895 with 168 bullet in military brass. or 42 gr with Commercial brass. It's guaranteed to work well.

168 smk is the best bang for your buck unless you're planing on going beyond 750 yards.

Beat me to it. Same load I use in my M1A and AR-10. Great combo.

 

[Zero333]

Beat me to it. Same load I use in my M1A and AR-10. Great combo.

Yeah. It's a guaranteed to work well type of load. I switched to a different powder because for semi autos I prefer loading on my Dillon xl650 and stick powders don't meter as well as ball.
So now I use 42.5 or 43.3 gr of w-748 with 168 or 165 gr bullets. It's a load that works great is all rifles, semi auto and bolt.

 

[Michael C]

Not to conflict what’s been said about M1A loads, they totally work. But an AR10/308 is really much stronger than a M1A, and can handle hotter loads as long as your firing pin hole and buffer/ spring are up to it. My 168 load is only 42g of 4064, but I am also shooting 44g of Varget with a 185 Berger at 1000. My rifle was a obyermeyer chamber that I had throated.

 

[Baer45]

I was get around 2650 with 43 gr under 175 smk in 18.5 inch Bartlein barrel on Desrt tech with mill brass reloads...seemed to function fine...although 4064 will work in AR 10 I think it is too rough for long term use so I usually load 4895...w/168

 

[Bamban]

If you were to shoot up to 1000 yards, give the 168 Berger Hybrids and a healthy dose of Varget a try.

 

[Michael C]

Bamban is telling the truth here. Those Berger 168 bullets fly very well. It’s not like a 168 Sierra SMK at all. It’s a long range bullet.

 

[Bamban]

And, make sure you contact Carlsbad here on the forum for this.

Bushing an AR10 bolt by Carlsbad | Shooters' Forum
http://forum.accurateshooter.com/threads/bushing-an-ar10-bolt-by-carlsbad.4009096/#post-37818945