My POF shot like a POS

[Deleted member 137765]

I got a chance to take the new build (POF AR10 in 6.5CM) to a 1000 yard range and shot with a guy who is a champion competition shooter. Sighting it in was difficult, loose scope. He had all the toys...the Magneto chrono, the electronic level for remounting the scope, you name it, it was in his gun bag. Using the Hornady Superformance (3050fps per box) we got an average of 2961 outta my 20" barrel. Not bad. Enter everything into Strelokpro and the rifle is now 1" low at 100 yards. Perfect. Zeroed at 200. Drop one MOA, 300 gets 3 good hits. No issues hitting 400-500 either. 600 is where everything fell apart. The ballistic chart is inaccurate, the parallax adjustment on the scope (NightForce SHV 5-20X56) is set properly but the bullets are flying high and low for both of us. Really has us scratching our heads. Barrel was hot so we put it away for a awhile till it was cool and tried again, same thing. Ammo was always in shade. Every other rifle we shoot is hitting at 800-1000 yards fine but the Creedmoor won't ring steel at 600 yards (decent crosswind) 70% of the time. Really frustrated.

View attachment 210636

Oh, BTW...sighting in the Dueck Defense 45* canted rapid transition sight was tough too. Max seems to be a mere 50 yards with that thing.

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I recognize that shooting a gasser requires more consistent follow-thru because you have three actions taking place instead of one (like a bolt action. The discharge of the bullet, the ejection of the brass and the racking of another round...it's different than shooting more traditional guns but that's not the issue here. I expected better from the 120gr bullet than 500 yards. Thoughts?

View attachment 210634

 

[lennyo3034]

Hornady Superformance has performed like hot garbage out of anything I've shot. Also 2961 with a 20" barrel (assuming 129 grain superformance) is hot as fuck. I don't care what the ammo claims, you are over pressure. You probably are also running a much higher than normal gas port pressure with that ammo, doesn't appear it has a +2 gas system either. What do your primers look like? What was the velocity spread when your chronoed it?

FWIW, factory Berger 130 hybrid ammo shoots 2900 out of my 24" AR. Small rifle primers are flattened and extractor marks. Clear pressure signs and I don't shoot that ammo anymore despite amazing accuracy. I can't imagine what 2961 out of shorter barrel and large rifle primers are doing.

 

[264win]

^^ Super performance ammo is often very erratic velocity and accuracy wise. Definitely not a good choice for an ar.
Get a few varieties of quality match ammo and see what your rifle likes

 

[elfster1234]

If i had a $1 for everytime a friend, or even myself, thought a 2moa firearm shot like crap, and was able to get it sub moa with some good load development (aka, finding a bullet that bore likes to shoot with proper harmonics), then id could buy my own POF... not saying it doesn't shoot like crap, but sometimes its all about the bullet and harmonics. And don't think a large frame AR should always shoot consistently under 1 inch. Its not a bolt gun, especially a 308. Id settle for 1moa with a rig like that and be happy about it.
PSA 6.5 CREEDMOOR GEN3 AR10 SERIES!: https://www.youtube.com/playlist?list=PLCyPEnjRX7eaDwgsphg6AbgjWYF9fhVXo

 

[BurnOut]

Hornady Superformance has performed like hot garbage out of anything I've shot.

Apples and oranges, but I have a 7mm-08 bolt gun that shot Superformance into a ~3" pattern at 100 yards. I'm far from the best shooter to ever get behind a gun, but I'm damn sure better than THAT.

I haven't had a chance to try anything else, but before I get cranky and send the gun in to get checked, I'm gonna try some generic handloads to see if I can't get it to at least 1 MOA.

 

[Deleted member 137765]

The average (after ten chrono'ed rounds was 2961fps with a 15fps variance. As for this question, " What do your primers look like?" I don't really know how to answer...they look like primers. LOL
Specifically what should I be looking for? Aside from the loss of consistent accuracy at 600 yards, the rifle performed fine, fed fine.

 

[Mike_Honcho]

Take a photo of the spent cases and post it.

- backing out
- flattening
- abnormally deep penetration or drag by the pin
- pierced

 

[Deleted member 137765]

Oh...shoot. I didn't bring one home. Will hafta look next time out. Those little bastards burnt the chit out of me though.

 

[ormandj]

If you want to see how well your rifle will shoot, use match ammunition. The Hornady Match 147gr ELD-M should shoot well out of just about any rifle with the twist it needs. Superperformance is trash ammo for people chasing velocity, it isn’t consistent at all.

 

[Bayoubigcat]

I’d try some different ammo (buy several types or roll your own)before you call a gun a POS. FWIW Superformance is not good ammo.

Also, a “champion shooter” would have more than likely noticed the velocity and looked at your fired brass.

You mention “build” is this a factory gun or did you piece it together?

 

[264win]

If you want to see how well your rifle will shoot, use match ammunition. The Hornady Match 147gr ELD-M should shoot well out of just about any rifle with the twist it needs. Superperformance is trash ammo for people chasing velocity, it isn’t consistent at all.

Not intending any offense here, but I would suggest using any match ammo Except the 147.
There are issues with this bullet that are well documented here and elsewhere.

 

[ormandj]

Not intending any offense here, but I would suggest using any match ammo Except the 147.
There are issues with this bullet that are well documented here and elsewhere.

No offense taken! It's shot well out of everything I own, but I won't go against whatever trend you're suggesting exists. Grab the 140gr then, or Federal Gold Medal Match (suggest SMK based). There's plenty of good match ammunition out there that won't shoot like Superperformance, which if you want to talk about universal negative feedback, absolutely has!

 

[Constructor]

I've heard good reports about the 140s.

 

[fast_hand84]

I’d try some different ammo (buy several types or roll your own)before you call a gun a POS. FWIW Superformance is not good ammo.

Also, a “champion shooter” would have more than likely noticed the velocity and looked at your fired brass.

You mention “build” is this a factory gun or did you piece it together?

My thoughts exactly.

That ammo is less than stellar, and is also notoriously bad out of gas guns.

Something for OP to consider also: every POF I have owned has been incredibly accurate with the right loads. On the flip side, they are wildly inaccurate and inconsistent with the wrong loads. My Revolution 16.5” Piston will shoot 178 ELD-X into one hole, all day, anywhere from 200 yards in. Throw in some quality Match 168 SMK and that same gun shoots 2-3 MOA if you’re lucky. It’s really that significant of a change.

 

[smoothy8500]

Here's some examples of ejector swipes from another posting:

 

[deersniper]

You all are smoking crack. Superperformance is great out of some guns. Awesome in a SAC DT 223 53 vmax Whacked a ghogs and goose sized targets out to 680 with it. Haven’t had targets set up farther than that tho.

But yeah I think Hornady doesn’t recommend that for semis

 

[fast_hand84]

You all are smoking crack. Superperformance is great out of some guns. Awesome in a SAC DT 223 53 vmax Whacked a ghogs and goose sized targets out to 680 with it. Haven’t had targets set up farther than that tho.

But yeah I think Hornady doesn’t recommend that for semis

I’m sure there are guns out there that love it, as yours does. I actually can’t think of many rifles that would be better suited for the ammo than yours.
Gas guns, not so much.

 

[Deleted member 137765]

Great. I only bought 3 cases from the same lot. (((sigh))) Now I need to buy another rifle and more ammo.

 

[308Gunner]

You can more than likely sell that ammo without any hassle, as stated above but a couple of boxes of different match ammo and your rifle will let you know what it likes

 

[elfster1234]

I shot some 243 super performance in this ruger precision rifle adventure series in the start and it shot like absolute crap, and after some load development it was very much sub moa. Almost 2moa with the superperfomance and was able to get a 6x5 target down into the. 6moa average with reloads. Series here
RUGER PRECISION RIFLE ADVENTURE SERIES!!: https://www.youtube.com/playlist?list=PLCyPEnjRX7eZXyO_48heo4b2imIYIfKFc

 

[bfoosh006]

I would certainly try different ammo.
Superformance has its place... but I don't consider it match ammo in a SA.

 

[Deleted member 137765]

Got it.
Thanks guys. Time to go fishing.

 

[308Gunner]

If that was at my fishing hole I would not be on SH talking about ammo

 

[wildcats]

I recommend you work up your own loads.gas guns can be finicky at times with factory loads.

 

[Shoots 700's]

Just curious why you sighted in 1 minute low at 100?

 

[deersniper]

So.

You want to sell that Ammo?

 

[Deleted member 137765]

Just curious why you sighted in 1 minute low at 100?

Zero at 200. Almost all my rifles are. Now that I know it's only accurate to 500 yards, that'll be it's application. The bullets won't expand effectively beyond that anyhow and it's for ADC work so I guess I'll just live with it for now. I rarely shoot at anything breathing beyond 200 yards, usually kill things much closer than that. I live for the stalk.

 

[TheHorta]

I see your problem. Your handgrip is all phuqd up.

 

[hollywood1981]

anmo change, also there are some set screws on the top of the rail above the barrell nut. Adjust the the top and the ones on the bottom of them to 20 psi. I did this and now my POF shoots lasers.

 

[Deleted member 137765]

anmo change, also there are some set screws on the top of the rail above the barrell nut. Adjust the the top and the ones on the bottom of them to 20 psi. I did this and now my POF shoots lasers.

I see your problem. Your handgrip is all phuqd up.

You have made a common mistake...confusing my grip with the politicians' grip on reality here in California.

 

[BamaSE]

My thoughts exactly.

That ammo is less than stellar, and is also notoriously bad out of gas guns.

Something for OP to consider also: every POF I have owned has been incredibly accurate with the right loads. On the flip side, they are wildly inaccurate and inconsistent with the wrong loads. My Revolution 16.5” Piston will shoot 178 ELD-X into one hole, all day, anywhere from 200 yards in. Throw in some quality Match 168 SMK and that same gun shoots 2-3 MOA if you’re lucky. It’s really that significant of a change.

Ditto with the 178 ELDs out of my DI Revolution.....tack driver.

 

[cstumpf750]

I have a 16” Barrel P308 and have shot it to 1000 yards using Federal gold medal match 175gr. It hates standard military loads and is despises Hornady Superformance 168gr. POFs are picky about ammo and tend to like heavier bullets. The only problem I had was lack of velocity: 2440 FPS MV due to barrel length. I was lobbing the shots in at 1000 yards. There was a target at 1030 yards and I had to dial from 10.2 mils to 13.5 mils for the additional 30 yards. My danger space was nil.