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| | |-+  From the 6.5 Grendel Bullpup Situation Room
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Author Topic: From the 6.5 Grendel Bullpup Situation Room  (Read 139291 times)
SHORT-N-SASSY
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« Reply #140 on: October 15, 2018, 02:20:26 AM »

During the six years since this Thread got started, Bullpup rifles have grown in popularity, as has the can-do 6.5mm Grendel cartridge. Sad fact: Despite the promises of some Bullpup manufacturers, an Enthusiast today can't order a factory-built 6.5mm Grendel Bullpup rifle.

Enter: The 6.5mm Grendel FoldAR ---

(Folded length, w/ 16" Barrel and flash hider: 17 5/8" --- drops into a short backpack. Overall weight of package w/ 30-round magazine: 6.1 lbs.)
(http://www.65grendel.com/forum/showthread.php?18050-FoldAR&p=208728#post208728)

A complete 6.5mm Grendel FoldAR Upper Assembly: $850.00 MSRP.

Kudos to FoldAR for offering the 6.5mm Grendel in this compact, lightweight package. Is it a Bullpup? No. But, in the absence of a 6.5mm Grendel Bullpup rifle, it's got my attention!
« Last Edit: October 15, 2018, 03:31:09 AM by SHORT-N-SASSY » Logged
Aussie E
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« Reply #141 on: October 15, 2018, 10:52:25 AM »

I prefer a folding buttstock to a folding barrel assembly.

AE
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thehun
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« Reply #142 on: October 15, 2018, 01:53:43 PM »

I think that latch design is asking for trouble...but that is me.

As that latch and trunnion wears...so does your headspacing.
« Last Edit: October 15, 2018, 01:55:42 PM by thehun » Logged
enov8tive
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« Reply #143 on: October 15, 2018, 03:06:04 PM »

It doesn't.
Headspacing is determined by bolt and extension, neither of which are dependent upon the interface connection.
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thehun
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« Reply #144 on: October 18, 2018, 05:26:39 PM »

Exactly....the headspace will change as the folding/interface mechanism wears from use/operation...any mechanism like that can increase the chance of a headspace change as it wears depending on use...you can't escape it.
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SHORT-N-SASSY
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« Reply #145 on: October 18, 2018, 07:22:40 PM »

"Headspacing is determined by bolt and extension, neither of which are dependent upon the interface connection."



https://www.all4shooters.com/en/Shooting/rifles/FoldAR-new-folding-AR-15/
« Last Edit: October 19, 2018, 12:48:31 AM by SHORT-N-SASSY » Logged
enov8tive
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« Reply #146 on: October 19, 2018, 07:07:14 AM »

Exactly....the headspace will change as the folding/interface mechanism wears from use/operation...any mechanism like that can increase the chance of a headspace change as it wears depending on use...you can't escape it.

Headspacing would only change for the following reasons:
1) wear on the bolt lugs
2) wear on the extension lugs
3) wear in the chamber
All of these factors are inherent to all ARs.

For the FoldAR, headspacing wont change as a result of any theoretical or actual wear on the following components:
1) extension cone
2) upper receiver cone
3) locking lever components
4) pivot pin components

Again, this is because headspacing is only dependent upon chamber, bolt lugs, and extension lugs...none of which are mechanically different on the FoldAR than any other standard AR.

Imagine this... if your barrel/extension assembly was shimmed forward lets say .020", headspacing will still not change.
The only result is that the entire BCG will also move forward the same .020" shimmed amount when the bolt locks into the extension.
The [headspacing] distances between the chamber, extension lugs, and bolt lugs remain the same.
« Last Edit: October 19, 2018, 07:09:00 AM by enov8tive » Logged
SHORT-N-SASSY
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« Reply #147 on: October 31, 2018, 04:31:53 AM »

Re Worst SHTF scenario: Bullpup rifle or handgun? (http://bullpupforum.com/index.php?topic=8726. msg85222#msg85222).

I yesterday sent this Message to Kel-Tec: "I submit that the Kel-Tec RDB Survival Bullpup, chambered for the can-do 6.5mm Grendel cartridge, would be the 'SHTF' combo to beat. And, I'm hoping to see that offering from Kel-Tec in the near future."
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SHORT-N-SASSY
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« Reply #148 on: July 28, 2019, 10:28:22 AM »

Under the heading, "It was designed to shoot minute of man . . .", I today sent the following email to IWI U.S. C.E.O., Casey Flack, CC: The Bullpup Forum:






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Aussie E
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« Reply #149 on: July 28, 2019, 10:45:31 AM »

S&S did you happen to send the ATF letters and/or emails in regards to pistol braces and bump stocks too?

AE
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kfeltenberger
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« Reply #150 on: July 28, 2019, 06:46:23 PM »

S&S did you happen to send the ATF letters and/or emails in regards to pistol braces and bump stocks too?

AE

I fail to see any equivalence between a letter pointing out what can be accomplished and asking for more modern calibers to be offered and someone asking for opinions that could potentially limit the use of otherwise legal items.
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Kurt
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« Reply #151 on: July 29, 2019, 02:25:58 AM »

Aussie E, I'm torn:

I'm really excited about the soon-to-be-available 6.5mm SAUM 4S factory ammo. It's a top choice for my favorite haunts ---


And, I still have the American Spirit Arms .308 Match Rifle used in my 2001 .300 WSM Conversion ---

(I've since sold the .300 WSM Barrel and Bolt to a guy, but still have the "Sidewinder" gas tube)

On the one hand, I could simply order a 6.5mm SAUM 4S-chambered Barrel and magnum Bolt for the AR-10. But, I'd really prefer a 6.5mm SAUM 4S-chambered Bullpup rifle.

Presently, I see the K&M Arms M17S .308 offering as the only viable choice --- primarily, because of its beefy 3-lug Bolt design ---


On the downside, it doesn't have a free-floating Barrel, and I shoot left-handed.

Woe is me!


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SHORT-N-SASSY
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« Reply #152 on: July 31, 2019, 07:09:39 AM »

The 6.5mm SAUM 4S: A 6.5mm Grendel on steroids

It looks good on paper:

The 6.5mm SAUM 4S, 150-grain Sierra HPBT Matchking (BC - 0.713) (A)
The .300 WSM, 180-grain Winchester Ballistic Silvertip (BC - 0.507) (B)

(From 24" barrels, at sea level, w/ 10 mph crosswind. NOTE: The SAUM load has about 25% less Recoil Energy, than the WSM load --- in 8-pound rifles)

And, it delivers --- at extended ranges:





Factory Prime Ammunition 6.5mm SAUM 4S (European manufacturer) is available, now, from Target Sports, at $39.99 per 20-round box ---


And, factory Prime Ammunition 6.5mm SAUM 4S (U.S. manufacturer) will be available, later this year.

It is my hope that a Bullpup rifle manufacturer will see the light and offer an auto-loading, M.O.A.-accurate 6.5mm SAUM 4S in 2020.

From my perspective, it's the combo to beat!
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SHORT-N-SASSY
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« Reply #153 on: August 06, 2019, 11:29:09 AM »


And, factory Prime Ammunition 6.5mm SAUM 4S (U.S. manufacturer) will be available, later this year.

It is my hope that a Bullpup rifle manufacturer will see the light and offer an auto-loading, M.O.A.-accurate 6.5mm SAUM 4S in 2020.

From my perspective, it's the combo to beat!



< https://forum.snipershide.com/threads/a-message-from-jim-prime-ammo.6949330/#post-7811414 >

As I drove through the ultra-scenic Sedona Red Rocks Country, a couple weeks ago ---


I stopped to take-in the view, and attempted to reach Prime Ammunition C.E.O., Jim O'Shaughnessy, at his office (He was not available, earlier.). I was successful, this time, and we talked several minutes about the new stateside arrangement. He said that they will be producing Prime Ammunition 6.5mm SAUM 4S, in a few months. He was very thankful for all the support he's received from our sport-shooting world.
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SHORT-N-SASSY
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« Reply #154 on: August 08, 2019, 05:19:00 AM »

More on my dilemma, above, Aussie E, I'm torn:

< https://www.ar15.com/forums/Precision-Rifles/AR-10-ers-bummed-by-Hornady-s-6-5-PRC-2-955-Max-C-O-L-Not-to-worry-The-6-5-GAP-4S-SAUM-option-/4-7781/?page=2#i115404 >


« Last Edit: August 08, 2019, 05:21:42 AM by SHORT-N-SASSY » Logged
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