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Author Topic: AR-10 Project-X  (Read 2195 times)

Offline coachcw

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Re: AR-10 Project-X
« Reply #25 on: December 19, 2017, 03:33:19 PM »
shoulda built a 6.5 lol
My wife told me that I hunt way more than I did when we first got married. I said yeah I know isn't it great !

Offline kentrek

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Re: AR-10 Project-X
« Reply #26 on: December 19, 2017, 05:09:08 PM »
Cool project....i almost built a 375 raptor but decided i needed more powder so went with the wsm case.....be interesting how the slower 375s do on game

Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #27 on: December 19, 2017, 05:09:14 PM »
shoulda built a 6.5 lol

Have my share of 6.5's. I like 6.5's. Only takes 10 min to
Swap a barrel. No other changes. Same bolt carrier, same mags.

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Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #28 on: December 19, 2017, 05:27:05 PM »
Cool project....i almost built a 375 raptor but decided i needed more powder so went with the wsm case.....be interesting how the slower 375s do on game

So you have a .375 WSM on a AR10?
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Offline kentrek

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Re: AR-10 Project-X
« Reply #29 on: December 19, 2017, 05:42:46 PM »
Cool project....i almost built a 375 raptor but decided i needed more powder so went with the wsm case.....be interesting how the slower 375s do on game

So you have a .375 WSM on a AR10?

No its off a stiller preditor action, 20 inch bench mark barrel.....im hoping for 2700 with a 280 hammer hunter

Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #30 on: December 19, 2017, 06:08:48 PM »
Cool project....i almost built a 375 raptor but decided i needed more powder so went with the wsm case.....be interesting how the slower 375s do on game

So you have a .375 WSM on a AR10?

No its off a stiller preditor action, 20 inch bench mark barrel.....im hoping for 2700 with a 280 hammer hunter

20" bbl, sound like a quick swinging/handling combo.
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Offline kentrek

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Re: AR-10 Project-X
« Reply #31 on: December 19, 2017, 06:18:31 PM »
Cool project....i almost built a 375 raptor but decided i needed more powder so went with the wsm case.....be interesting how the slower 375s do on game

So you have a .375 WSM on a AR10?

No its off a stiller preditor action, 20 inch bench mark barrel.....im hoping for 2700 with a 280 hammer hunter

20" bbl, sound like a quick swinging/handling combo.

Yes sir....short to medium range heavey hitting brush, quad, truck gun

Offline Dan-o

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Re: AR-10 Project-X
« Reply #32 on: December 19, 2017, 10:05:14 PM »
I almost feel bad for the coyote you shoot with that thing.

I've shot coyotes with the .375 Ultra Mag/ 260gr Accubond combo.



Blew the heart completely out of him.👍



Good grief!

You were not undergunned.
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Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #33 on: December 21, 2017, 09:33:37 AM »
UPS finally delivered the scope, mount and trigger yesterday evening. Swapped the Mil-Spec trigger out and got the scope squared and mounted. I guess weather held up my NIB bolt carrier group so it should be here today, then I will be able to shoot it. I ordered some Lehigh Defense 250gr Controlled Fracturing bullets along with some Cutting Edge "Maximus" bullets but they won't be delivered until the 26th.


.375 Raptor
Aero Precision M5E1 Enhanced upper, lower set
Aero Gen II 15" Keymod handguard

18" X-Caliber stainless barrel
10 twist
Mid length gas
SPR contour
11/16-24 muzzle threads
Anderson adjustable gas block
Wilson Combat TR-QCOMP

Ambi selector/safety
Odin extended Mag release
Phase 5 extended bolt catch/release
CMC flat two stage 2/2 trigger
Ant rotation pins
Magpul grip
MILBUS carbine stock

Kinetic Development Group Sidelok 30mm mount
Leupold 4.5-14x50 Long Range Precision (LRP) Impact 32 MOA reticle



.308 case left/ .375 Raptor right.






« Last Edit: December 21, 2017, 08:22:48 PM by Biggerhammer »
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Offline JJB11B

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Re: AR-10 Project-X
« Reply #34 on: December 21, 2017, 12:14:33 PM »
That looks fun! I知 still playing with 5.56 stuff. Someday I値l do something different
"Pain heals, chicks dig scars, glory lasts forever."
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Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #35 on: December 21, 2017, 01:42:54 PM »
Yes, yes & yes! The last part arrived.





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Offline Dan-o

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Re: AR-10 Project-X
« Reply #36 on: December 21, 2017, 02:03:42 PM »
I want one!!!!!!

I can't afford one, but I can afford to want one.   
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Offline Boss .300 winmag

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Re: AR-10 Project-X
« Reply #37 on: December 21, 2017, 02:44:38 PM »
I want one!!!!!!

I can't afford one, but I can afford to want one.   

He値l play with it awhile then you can buy it at half price. :chuckle:
"Just because I like granola, and I have stretched my arms around a few trees, doesn't mean I'm a tree hugger!
Hi I'm 8156, our leader is Bearpaw.


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Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #38 on: December 21, 2017, 02:58:58 PM »
I want one!!!!!!

I can't afford one, but I can afford to want one.   

He値l play with it awhile then you can buy it at half price. :chuckle:

Gotta figure out how to be able to write these things off.😊
Embrace the hate.....

Offline Boss .300 winmag

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Re: AR-10 Project-X
« Reply #39 on: December 21, 2017, 03:04:13 PM »
I want one!!!!!!

I can't afford one, but I can afford to want one.   

He値l play with it awhile then you can buy it at half price. :chuckle:

Gotta figure out how to be able to write these things off.😊

Start a gun shop, then sell them to us for half, use the loss as a tax right off. :tup:
"Just because I like granola, and I have stretched my arms around a few trees, doesn't mean I'm a tree hugger!
Hi I'm 8156, our leader is Bearpaw.


Keep Calm And Duc On!

Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #40 on: December 21, 2017, 03:07:03 PM »
I want one!!!!!!

I can't afford one, but I can afford to want one.   

He値l play with it awhile then you can buy it at half price. :chuckle:

Gotta figure out how to be able to write these things off.😊

Start a gun shop, then sell them to us for half, use the loss as a tax right off. :tup:

Couldn't stand the Fed's sniffing around.😦
Embrace the hate.....

Offline Dan-o

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Re: AR-10 Project-X
« Reply #41 on: December 21, 2017, 03:41:39 PM »
Sell it to me on credit. 

In return, I will send you a certified letter promising to never pay you. 

You can then write it off as bad debt. 

Should I PM you my mailing address?
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Offline yorketransport

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Re: AR-10 Project-X
« Reply #42 on: December 21, 2017, 04:46:50 PM »
I want one!!!!!!

I can't afford one, but I can afford to want one.   

He値l play with it awhile then you can buy it at half price. :chuckle:

Gotta figure out how to be able to write these things off.😊

You just need to be a 都ecurity guard or animal control specialist. You壇 be able to write off the guns as necessary tools for work.  :tup:

Offline b23

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Re: AR-10 Project-X
« Reply #43 on: December 21, 2017, 10:41:50 PM »

Gotta figure out how to be able to write these things off.😊

You just need to be a animal control specialist. :tup:

Oh yeah, yorke has a great idea.  Who knows, maybe you could become partners with Billy The Exterminator and have your own Reality TV show. :chuckle:

Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #44 on: December 22, 2017, 10:12:20 AM »
One last tweak! I have to file down the inside guide ribs on a few Magpul LR's so the larger diameter necks of the .375 don't expand the Mag.

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Offline trophyhunt

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Re: AR-10 Project-X
« Reply #45 on: December 22, 2017, 10:16:55 AM »
that has to be the nicest looking AR I致e ever seen!!
的n common with..... not so much!!

Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #46 on: December 22, 2017, 01:02:29 PM »
that has to be the nicest looking AR I致e ever seen!!

Thanks...
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Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #47 on: December 28, 2017, 12:06:27 PM »
Loaded up some of the 250gr Lehigh Controlled Fracturing bullets today. This was a seriously compressed load. Reminded me of seating a .375 bullet in a Ultra Magnum on top of 102gr of 7828. Having to apply a spooky amount of pressure and you can hear and feel the powder crunching as it's compressed.

Hit the range with only 5 rounds loaded. Just to see if they went bang! Also to function test the new AR. Also at a $1.25  a bullet Shipped. I wasn't going to load more than a few for my first go at it. I hate pulling bullets.

Went really well bellow is the first and only 5 shot group I have fired from the rifle. Started with a new, cold, clean bore. No break in. The first round was out (To be expected) the next 4 stacked up to be a hair over half inch.







« Last Edit: December 28, 2017, 11:04:18 PM by Biggerhammer »
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Offline Dan-o

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Re: AR-10 Project-X
« Reply #48 on: December 28, 2017, 12:11:41 PM »
Wow.....   pretty amazing accuracy. 

What a thumper.   

What is the point behind the controlled fracturing bullets?   Do they make a nasty wound channel?   Do pieces come off at impact? Just curious if they are meant for hunting. 

Any idea what kind of pressure those compressed loads run?
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Offline Biggerhammer

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Re: AR-10 Project-X
« Reply #49 on: December 28, 2017, 02:08:52 PM »
Just after my last post. I loaded up a few more but dropped half a grain to 43gr of 10X. The bullets seated a little smoother. Back to the bench to try it at 200 yards. I didn't make a scope adjustment because I know for a fact that more often than not your first round will be slightly out on most scope adjustments.

I already know the combo will shoot. So I fired 3 at the 200 yard line. The aim point is 3/4" it grouped 3" low and 3" right. The three shot group measured  .496! I'll take it!

I'm going to load up a bunch. Clean the rifle and in the morning zero it at 200 yards and call it good.

200 yards.





From the target back to the bench.





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