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Author Topic: Big Bore AR Pistol Question  (Read 1023 times)

Offline CP

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Big Bore AR Pistol Question
« on: November 06, 2019, 07:36:54 AM »
Anyone hunt with a .450 Bushmaster, .458 SOCOM or similar pistol?  I'm toying with putting one together for firearms restricted areas but I'm a bit worried about managing the recoil.  Looks like a black eye waiting to happen.

How manageable are they?   

Do you load them down or use full power loads?

Offline Rob

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Re: Big Bore AR Pistol Question
« Reply #1 on: November 06, 2019, 08:38:11 AM »
Shooting a 50 Beowulf AR pistol is like holding and firing a 20 gauge next to your face.  It is workable but very important to hold it tight to avoid scope eye.  However adding an arm brace makes a huge difference.

Its a hoot to shoot!
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Offline carpsniperg2

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Re: Big Bore AR Pistol Question
« Reply #2 on: November 06, 2019, 08:39:42 AM »
I would not go 450 bushmaster in a pistol the recoil would be brutal. Thatís coming from me who loves recoil and big bore rifles and pistols. I have shot a 458socom pistol and it was very manageable. You could also look to a 10mm build plenty of power for a lot of close range hunting.
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Offline CP

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Re: Big Bore AR Pistol Question
« Reply #3 on: November 07, 2019, 12:44:42 PM »
Iím surprised that no one fesses up to hunting with one of these.  Seems that they would be the perfect road hunterís gun.  One could legally carry it loaded while driving. 
I probably wonít do that but I ordered a 10Ē .450 BM upper.  We will see how it shoots with factory ammo.

 If that isnít much fun to shoot, Iíll get some dies and load it down a bit.  I got a bunch of suitable bullets and powder lying around.

Offline CP

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Re: Big Bore AR Pistol Question
« Reply #4 on: November 14, 2019, 05:07:54 PM »
Yep, brutal is a good adjective for it  :o.  It's a beast with Hornady Black ammo.  Shoots a 1" group at 50 yards with the dot but it is punishing.  I could shoot it once or twice a year but I'm thinking a 45 colt bullet loaded to about 1400 fps should be more than enough for blacktail. 


Offline konradcountry

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Re: Big Bore AR Pistol Question
« Reply #5 on: November 17, 2019, 08:42:57 PM »
How loud is that thing????

I've hunted with a 7.5" blackout and a red dot.

I could cheek to a hundred yards but anything past that was kind of sketchy.

Works fine in thick timber where you know there won't be long shots.

Given the choice I'd still rather take a shotgun but the ar pistol is pretty fun.

Offline carpsniperg2

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Re: Big Bore AR Pistol Question
« Reply #6 on: November 17, 2019, 09:16:39 PM »
Man that looks like fun but brutal like I figured lol

They make a few brakes that might help take it down.
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Offline birdshooter1189

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Re: Big Bore AR Pistol Question
« Reply #7 on: November 18, 2019, 06:41:50 AM »
Looks like a BCA upper.  I recently got one myself.  16" 450 bushmaster.  I've put 12 rounds through mine so far.  It's an impressive round.


Offline CP

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Re: Big Bore AR Pistol Question
« Reply #8 on: November 18, 2019, 06:55:45 AM »
Yep, Bear Creek.  Iíve only had one shooting session with it but I didnít notice that it was any louder than my .300 BLK pistol.  The recoil however isnít even in the same ballpark as the .300.  The recoil calculator gives me 4.5 ft-lbs of recoil energy for the .300 vs 20 ft-lbs for the .450. 

I donít want to brake it but itís unusable right now with factory ammo and the Shockwave blade that I have on the lower.  The hard-plastic blade is downright dangerous; Iíd be better off without it.

I few things that Iím considering to tame it:
  Replace the Shockwave brace with a SB Tactical SBA4
  Add some weight (heaver optic, maybe some lead weights in the brace)
  Load down the ammo Ė I have some 225g FTX, and some other lower velocity suitable projectiles 

 
Hornady is coming out with a subsonic load soon, that may be the ticket.
https://www.hornady.com/ammunition/rifle/450-bushmaster-tbd-gr-sub-x#!/

If I can get this thing to behave, Iíll probably get in line for a suppressor for it.
« Last Edit: November 18, 2019, 07:34:35 AM by CP »

Offline birdshooter1189

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Re: Big Bore AR Pistol Question
« Reply #9 on: November 18, 2019, 07:58:54 AM »
I believe it on the recoil.  After my first shot with it i thought "this isn't bad".  After the 6th shot i was feeling it in my cheek bone and shoulder. 

Something that you may consider if you want to use it with an arm brace, I have a friend who has "shooting shirts" with a sewn in recoil pad in the shoulder of the shirt. I'm not sure if the shirts were home made or commercial.  I borrowed one once and it worked nice for shooting a 300 win mag on a bench.  I suspect it would work well with an AR arm brace too.

My 450 upper is on a rifle with a standard A-2 stock.  I put a Vortex 3-12x56 scope on it.  The last 3-shot group i shot with it was about 5" at 50 yds using Federal whitetail classic 300gr hp factory ammo. I was frustrated with that, I then noticed scratch marks on the scope indicating that the scope slid in the rings.  It moved about 1/2" until it jammed up on the bell of the scope.  I then pulled the scope off and put a bead of JB-weld on top and bottom of the scope rings and then screwed it all back together.  I haven't shot it again yet but I'm pretty confident that the scope won't move on me this time.  :chuckle:

I'd like to get a suppressor for mine as well and have 3 or 4 loads for it:
1. subsonic quiet load
2. high velocity/light jacketed varmint load
3. high velocity/low expansion "penetrator" load for bear hunting
4. cheap/low recoil plinking load

Offline JohnVH

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Re: Big Bore AR Pistol Question
« Reply #10 on: November 18, 2019, 08:05:37 AM »
I have a 50 Beowulf 10" pistol, its not bad on your shoulder, and its not bad one handed as a pistol. Its alot of fun!


Offline CP

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Re: Big Bore AR Pistol Question
« Reply #11 on: November 18, 2019, 08:45:03 AM »
The shooting shirt is a good idea.  Nothing the BATF can do us for modifying our shirts. 

Offline Rob

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Re: Big Bore AR Pistol Question
« Reply #12 on: November 18, 2019, 08:55:36 AM »
The shooting shirt is a good idea.  Nothing the BATF can do us for modifying our shirts.

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Offline konradcountry

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Re: Big Bore AR Pistol Question
« Reply #13 on: November 18, 2019, 12:35:08 PM »
Yep, Bear Creek.  Iíve only had one shooting session with it but I didnít notice that it was any louder than my .300 BLK pistol.  The recoil however isnít even in the same ballpark as the .300.  The recoil calculator gives me 4.5 ft-lbs of recoil energy for the .300 vs 20 ft-lbs for the .450. 

4.5 would be a pretty tame subsonic out of a suppressor. So compared to supers around twice that of blackout it sounds like.

That still puts you into 20 gauge recoil....next to your face.

I few things that Iím considering to tame it:
  Replace the Shockwave brace with a SB Tactical SBA4
  Add some weight (heaver optic, maybe some lead weights in the brace)

Could add a bipod.

I shoot blackout supers and found that I was better with a foam tube over the shockwave and I also use a pretty aggressive angular grip.

But I still prefer a sabot shotgun in a restricted area.

I don't wear a lot of camo and where I go has a lot of California transplants.

So would rather not deal with police calls about some guy with a scary gun.

Offline CP

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Re: Big Bore AR Pistol Question
« Reply #14 on: November 18, 2019, 01:19:39 PM »
Maybe I'll paint it pink so it isn't so scary.


 


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