Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
P-LAG LLC, Hugh TN, Rigdonkey, angusthedog, stevemort
63888 Registered Users
Top Posters
dogcatcher 88491
stxranchman 53143
bill oxner 47818
RKHarm24 44577
rifleman 44388
BOBO the Clown 43766
BMD 40950
Big Orn 37484
SnakeWrangler 37227
txshntr 35255
facebook
Forum Stats
63888 Members
45 Forums
418932 Topics
6071704 Posts

Max Online: 16728 @ 03/25/12 08:51 AM
Page 1 of 3 1 2 3 >
Topic Options
#7195848 - 06/12/18 01:25 PM Brass AR-10 Lower
Mickey Moose Online   content
Extreme Tracker

Registered: 02/05/12
Posts: 4643
_________________________
* Information Security Ninja
* NRA Endowment Life Member

* In search of 1 or 2 person lease, 3 hours from Plano, Please PM me

Top
#7195849 - 06/12/18 01:27 PM Re: Brass AR-10 Lower [Re: Mickey Moose]
ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 13260
Loc: Lewisville, TX
The reason why brass is used as an ammunition case it because it's malleable. AR-10 brass lower- malleable.
_________________________

Custom and Precision Ammunition!!
www.DallasReloads.com
Type 01 and Type 06 FFL

Top
#7195893 - 06/12/18 02:21 PM Re: Brass AR-10 Lower [Re: ChadTRG42]
Mickey Moose Online   content
Extreme Tracker

Registered: 02/05/12
Posts: 4643
Right.

It's neat.
_________________________
* Information Security Ninja
* NRA Endowment Life Member

* In search of 1 or 2 person lease, 3 hours from Plano, Please PM me

Top
#7195896 - 06/12/18 02:23 PM Re: Brass AR-10 Lower [Re: Mickey Moose]
TXGUNNER308 Online   content
Veteran Tracker

Registered: 12/02/09
Posts: 2852
Loc: Farmers Branch / Carrollton
cool / unique. i would have probably left it at an 80% lower.
_________________________
Initial Success or Total Failure


Top
#7195919 - 06/12/18 02:45 PM Re: Brass AR-10 Lower [Re: Mickey Moose]
GLC Online   content


Registered: 02/25/09
Posts: 5014
Loc: BenBrook Texas
Amazing what can be done with proper tools and knowledge. up
_________________________


Top
#7196006 - 06/12/18 04:55 PM Re: Brass AR-10 Lower [Re: Mickey Moose]
Classic Rocks Offline
Pro Tracker

Registered: 09/18/12
Posts: 1924
Mesmerizing. AVe would approve.

Top
#7196008 - 06/12/18 04:58 PM Re: Brass AR-10 Lower [Re: GLC]
2Beez Online   happy
Chihuahua

Registered: 07/17/15
Posts: 11178
Loc: Lake Texoma, TX
Originally Posted By: GLC
Amazing what can be done with proper tools and knowledge. up


cheers
_________________________

Top
#7196601 - 06/13/18 10:45 AM Re: Brass AR-10 Lower [Re: ChadTRG42]
TTUhunter4 Offline
Tracker

Registered: 07/03/10
Posts: 727
Loc: Texas
Originally Posted By: ChadTRG42
The reason why brass is used as an ammunition case it because it's malleable. AR-10 brass lower- malleable.


There are aluminum and steel cased ammo options also, so I don't think this argument holds up. My guess is that aluminum is used for uppers/lowers because of its strength to weight ratio, not because it is particularly strong or rigid. It is strong enough for the job, while still being lightweight.

I am certainly no metallurgist, but I don't think you can claim that brass being used in casings means it wouldn't work for a lower. My guess is that brass would be fine to use for lowers function-wise, but isn't typically used because it is much heavier and way more expensive when compared to aluminum. I doubt that a brass lower, with the thickness of material required to form a lower, would be unsafe because it is too "malleable."

Aluminum is used for aluminum foil because it is malleable. Aluminum lower - malleable. See the fallacy here?
_________________________
"God made man, but Samuel Colt made them equal."

Top
#7196647 - 06/13/18 11:51 AM Re: Brass AR-10 Lower [Re: Mickey Moose]
FiremanJG Online   content
THF Celebrity

Registered: 12/16/08
Posts: 25581
Loc: Wolfe City, TX
I was thinking brass was strong enough for the job, it's just heavier. But I am no medalurgist either. Just a fabricator/ welder, and wanna be blacksmith and machinist.

Under the right circumstances, this ole boy's materials for his lower could have been 100% free. His manual machine operating skills are quite impressive, in any case.
_________________________

800 Yard Steel Range
Precision Rifle Instruction
Memberships and Classes Available

Top
#7196649 - 06/13/18 11:54 AM Re: Brass AR-10 Lower [Re: Mickey Moose]
spankyttx Online   content
Woodsman

Registered: 03/05/17
Posts: 165
i thought brass and aluminum is actually about the same till you get into 6061 which is slightly harder than brass, then 7075 is even a harder (stronger tensile strength) aluminum. brass has the weight though. here's my thought, i buy a brass no-mar hammer to keep from damaging a steel part when it needs to be hit, the brass gives way before damaging that part, an aluminum hammer wouldn't have the weight i would need. a steel barrel up against a brass receiver on a lever action, i wouldn't own. steel pins in a brass lower to upper may not be as bad but then you have the weight.

_________________________
LI-SI-WI-NWI

Top
#7196660 - 06/13/18 12:11 PM Re: Brass AR-10 Lower [Re: Mickey Moose]
Choctaw Online   content
THF Trophy Hunter

Registered: 11/13/04
Posts: 6755
Loc: Grayson County
Brass-framed blackpowder revolvers stretch under recoil so the loads must be kept light. Why would this lower be any different?

Top
#7196676 - 06/13/18 12:37 PM Re: Brass AR-10 Lower [Re: Choctaw]
spankyttx Online   content
Woodsman

Registered: 03/05/17
Posts: 165
Originally Posted By: Choctaw
Brass-framed blackpowder revolvers stretch under recoil so the loads must be kept light. Why would this lower be any different?


to me, the stress points would be key, brass frames/receivers are a big no go for me. i would think the design of the ar upper to lower has lighter stress points between the two so stretch wouldn't be as bad as that revolver, not gonna say stretch wouldn't show up, but maybe just not as bad
_________________________
LI-SI-WI-NWI

Top
#7196678 - 06/13/18 12:39 PM Re: Brass AR-10 Lower [Re: Choctaw]
FiremanJG Online   content
THF Celebrity

Registered: 12/16/08
Posts: 25581
Loc: Wolfe City, TX
Originally Posted By: Choctaw
Brass-framed blackpowder revolvers stretch under recoil so the loads must be kept light. Why would this lower be any different?


The fire and bolt are above it. Really all a lower does is hold buffer tube/stock, trigger group, magazine well, and two pins, each in a sandwich.(I know you know that) Have you seen polymer lowers? And some guys have made 3D printed lowers.

Looks to me like it doesn't have to be as strong as the upper and the barrel.
_________________________

800 Yard Steel Range
Precision Rifle Instruction
Memberships and Classes Available

Top
#7196681 - 06/13/18 12:40 PM Re: Brass AR-10 Lower [Re: spankyttx]
FiremanJG Online   content
THF Celebrity

Registered: 12/16/08
Posts: 25581
Loc: Wolfe City, TX
Originally Posted By: spankyttx
Originally Posted By: Choctaw
Brass-framed blackpowder revolvers stretch under recoil so the loads must be kept light. Why would this lower be any different?


to me, the stress points would be key, brass frames/receivers are a big no go for me. i would think the design of the ar upper to lower has lighter stress points between the two so stretch wouldn't be as bad as that revolver, not gonna say stretch wouldn't show up, but maybe just not as bad


Pin through brass, through upper (aluminum) through brass. Contacting the brass in more area. I would like for him to report what happens, if anything, after 1000 rounds.
_________________________

800 Yard Steel Range
Precision Rifle Instruction
Memberships and Classes Available

Top
#7196682 - 06/13/18 12:44 PM Re: Brass AR-10 Lower [Re: Mickey Moose]
SnakeWrangler Online   content
THF Celebrity

Registered: 01/22/11
Posts: 37227
Loc: Over yonder.....
The spring taking most of the recoil compared to the revolvers frame taking the recoil..... confused2

Also, different alloys have different physical, mechanical, and metallurgical properties. Manufacturing processes also affect the physical and mechanical properties. Casting vs. forging vs. rolling vs. extruding etc. These properties can also be changed thru thermal processing (heat and cold).

Just because itís brass or aluminum is still could be either ductile (malleable) or brittle depending on the alloy and what processes it has undergone..... 2cents
I not a metallurgist or engineer but spent several years working with some really great ones.....used to work for ASM International- The Materials Information Society (formality the American Society for Metals)
_________________________
"You're statistically more likely to be killed by Hillary Clinton than an NRA member. - PolitiDiva

"Death is permanent...everything else is temporary!"

"You Cannot Simultaneously Be Politically Correct And Intellectually Honest!"

Top
Page 1 of 3 1 2 3 >



© 2004-2018 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide