GA Precision Porn

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Stout
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GA Precision Porn

Post by Stout »

Well I took the big step last week and received my first really long distance gun. I'm sure the rifle will shoot better than I will ever be capable of.
300 Win Mag
GA Precision Templar long action receiver
Bartlain 26" 5R stainless barrel
AICS 2.0 chassis with bipod
NightForce 3.5-15x56 glass
AAC Brakeout 51 tooth brake (I removed the Badger Ordnance brake so that's why the Cerakot is missing on the barrel.)
AAC 762 SDN-6

The total package is 18.8 lbs unloaded. Not much recoil.

I shot it last week without the can, waiting for the Brakeout, and it grouped very well at 104 meters. It was deafening with that brake. Sweet! I'll be clearing the 500 meter area in the back yard starting this weekend and putting up some AR500 steel for clanging.

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JohnnyC
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Re: GA Precision Porn

Post by JohnnyC »

Nice rig but damn that scope is high! I know the AICS has an adjustable cheek piece but that can't be comfortable to shoot like that. At least mine wasn't.
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markm
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Re: GA Precision Porn

Post by markm »

Agreed. I'd ditch the LaRue thing and go with reasonable rings. I know Hodnett swears by the mount, but that's just too high.

500 meters will be a chip shot for the 300WM. 8)
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ROFuher
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Re: GA Precision Porn

Post by ROFuher »

Pick up a pair of Badger steel rings. They are mighty proud of them, but you will never be disappointed. You haven't gone lo class anywhere else on this rig.
continuity-TROOPER, 2016
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in2b8u
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Re: GA Precision Porn

Post by in2b8u »

Look no further http://www.americanrifle.com/M10/default.asp
Best rings on the market hands down. My SAC build currently underway will don a pair of these.
I'm not saying let's go kill all the stupid people......... I'm just saying let's remove all the warning labels and let the problem sort itself out.
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markm
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Re: GA Precision Porn

Post by markm »

300 WM is a lot of round for that 7.62 can. My buddy won't shoot his 300s through his SDN.
Stout
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Re: GA Precision Porn

Post by Stout »

Yea, the LaRue mount has to go. A quick detach mount sounded like a good idea at the time, but I'm not going to be removing the scope and hoping for a good zero on the return anyway. And the eye relief was much too far away. I ordered a set of Seekins high rings today.

I swear that the description on the AAC website for the SDN-6 included 300 Win Mag! Can't find it now. I looked around this forum and in several places it is posted that more than 24" barrel on the 300 WM is GTG. I'm going to find out.
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markm
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Re: GA Precision Porn

Post by markm »

I think you can shoot 300wm, but man... I'd do it slow fire only. Christ! The barrel alone on a 300 is very hot after 3-4 successive rounds.

My nut case buddy will get goofy and throw like 6 or 7 down the pipe in a single string. You can fry an egg on that barrel. :wink:
Stout
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Re: GA Precision Porn

Post by Stout »

I don't think I'll be shooting this thing very fast. But the SDN-6 gets damn hot on the HK53 is just a second or two, 8" 223 on FA. So it can take it.
Stout
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GA Precision Porn (Range Report)

Post by Stout »

The rifle shot very well yesterday but the suppressor caused a POI shift down about 5 inches. I think it way be due to the ratcheting being between teeth so the can rocks up and down just a bit. I'll try cleaning the brake and the inside of the can this week and get another report soon.

On a very positive note, this thing sounds like a pellet gun! The RO even said he had never heard any other can dampen blast noise like the N-6 did on the 300 WM! It was spooky. My shooting buddy was very skeptical that it would perform at all and was impressed enough to commit to buy one for his POF 308. Recoil with and without the can seemed about the same. My shooting skills need obvious work so I'll need more trigger time.
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markm
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Re: GA Precision Porn

Post by markm »

Yep... we went through that mount fiasco too. Our Riflesmith took 400 grit paper to the bevel on the inside of the can. He got it to click into a solid tooth.

You could relieve the bevel on the mount too, but the guy wanted to hit the silencer surface.
Stout
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Re: GA Precision Porn

Post by Stout »

Exactly what I thought. I found a thread on SnipersHide that discussed lapping down the seating face on the Brakeout and that's what I'll be doing. The posts indicated the slop was causing poor accuracy.

Here are some updated pics with the new rings.
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Stout
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Re: GA Precision Porn

Post by Stout »

markm wrote:Yep... we went through that mount fiasco too. Our Riflesmith took 400 grit paper to the bevel on the inside of the can. He got it to click into a solid tooth.

You could relieve the bevel on the mount too, but the guy wanted to hit the silencer surface.

And did accuracy improve?
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markm
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Re: GA Precision Porn

Post by markm »

That looks a lot better. Very nice.

I think my buddy found that accuracy was improved. But as he shoots the rifle and removes the can, carbon build up pushes the mount lock up back out of whack again. I think his 5r 308 is back to wiggling again... he was stacking holes last weekend though. I'll have to take a look at his gun again.
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jcsparky
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Re: GA Precision Porn

Post by jcsparky »

Stout wrote:Exactly what I thought. I found a thread on SnipersHide that discussed lapping down the seating face on the Brakeout and that's what I'll be doing. The posts indicated the slop was causing poor accuracy.

Here are some updated pics with the new rings.
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I was thinking of putting my SDN6 on the 300WM, Barrel length is 24" shouldn't be a problem.
tell me more about the POI shift ?

thanks
HALO, G5, OBIID, SF762K, AACSDN6
Stout
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Re: GA Precision Porn

Post by Stout »

Sorry for the late reply. The Brakeout lapping seems to have corrected the vertical stringing issue. No wobble anymore. This rifle shoots very well. The shots in the pictures were suppressed through the N6 using Southwest Ammunition 190 gr SMK's at 600 Meters. We need to mow that pasture to get more distance! The first pic shows the first five shot group. The second five shot group is after .25 MOA windage adjustment. 1.6 mil holdover. No wind. MLR reticle with MOA knobs.

And I'm not even a good shooter yet.

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