Sam Adams
Member
Walkertexasranger
So, did you get your upper yet? If so, how did it and you shoot?
So, did you get your upper yet? If so, how did it and you shoot?
Anybody have an AR in 6.5 Grendel?
- Thread starter Sam Adams
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Grump
Member
Comparison problem
I checked out the ballistics comparison chart again and noticed that the column for 7.72x51 listed it as "M852", but with a 175-gr bullet. MV on that should be 2550 at 78 feet, or almost exactly 2600. It's listed as being only 2500 fps.
Can someone find out which is correct?
I checked out the ballistics comparison chart again and noticed that the column for 7.72x51 listed it as "M852", but with a 175-gr bullet. MV on that should be 2550 at 78 feet, or almost exactly 2600. It's listed as being only 2500 fps.
Can someone find out which is correct?
Zak Smith
Member
Black Hills 175gr .308 shoots 2515fps from my 20" AR10 (temp 50F, elevation 5000'). BH 168gr .308 shoots 2570 from the same gun.
-z
-z
MeekandMild
Member
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- Dec 25, 2002
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- 1,877
OK, last 2 questions, about the barrels themselves:
1) Through the years I've seen several stainless steel barrels which showed fracturing of the land/groove junction, which I presume was caused by brittleness of the material and either the process of rifling itself or the stress risers coming up from the sharp corners with shooting. (Off the top of my head, I recall seeing a Ruger .45, a Kimber .45 and a S&W .357 with this problem.) What sort of risk of this is there in these particular barrels?
2) Is there any chrome lining?
1) Through the years I've seen several stainless steel barrels which showed fracturing of the land/groove junction, which I presume was caused by brittleness of the material and either the process of rifling itself or the stress risers coming up from the sharp corners with shooting. (Off the top of my head, I recall seeing a Ruger .45, a Kimber .45 and a S&W .357 with this problem.) What sort of risk of this is there in these particular barrels?
2) Is there any chrome lining?
TX65
Member
MeekandMild,
There are multiple variances in the examples you bring up (manufacturer, age, fatigue, etc) that make it impossible to comment on the specifics of other manufacturers products.
As it relates to the 6.5 Grendel, this is non-issue given the level of material and machining quality being put into the product.
Chrome lining is not currently be done, but that does not perclude it being done at a later date for specific applications.
There are multiple variances in the examples you bring up (manufacturer, age, fatigue, etc) that make it impossible to comment on the specifics of other manufacturers products.
As it relates to the 6.5 Grendel, this is non-issue given the level of material and machining quality being put into the product.
Chrome lining is not currently be done, but that does not perclude it being done at a later date for specific applications.
Grump
Member
What's the BC for the Sierra 175-gr pill?
TX65
Member
7.62 NATO Sierra 175 MK .496BC (G1) between 2800fps and 1800fps per the Sierra website
6.5mm Lapua 144 FMJBT .636BC (G1)
6.5mm Lapua 123 HPBT .547BC (G1)
6.5mm Lapua 108 HPBT .475BC (G1)
6.5mm Lapua 100 HPBT .444BC (G1)
6.5mm Lapua 144 FMJBT .636BC (G1)
6.5mm Lapua 123 HPBT .547BC (G1)
6.5mm Lapua 108 HPBT .475BC (G1)
6.5mm Lapua 100 HPBT .444BC (G1)
MeekandMild
Member
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- 1,877
Thank you.
FYI the Kimber was new out of the box and the other two were well used.
FYI the Kimber was new out of the box and the other two were well used.
atek3
Member
Several people over at 65grendel.com have gotten their AR's, they look quite purdy
atek3
atek3
Sam Adams
Member
They may look pretty, but does the performance match? I suspect that it does, but always like to hear from ordinary folks whether the seller is telling the truth - the more people, the better.
Bobarino
member
TX65,
i've not been keeping up with all this 6.5 stuff until this thread, but it looks very promising. sounds like some serious work and research has gone into your development. kudos to you and yours.
as long as questions are flying around i have a couple.
has the military expressed interest in the round for testing and possible adoption?
has H&K expressed interest in chambering the XM-8 project in 6.5 Grendel?
that would be awesome if H&K won the contract for the M-8 and chambered it in 6.5. our fighting mend and women could finally have a modern replacement for the M-16 chambered in something decent. (just my opinion)
Bobby
i've not been keeping up with all this 6.5 stuff until this thread, but it looks very promising. sounds like some serious work and research has gone into your development. kudos to you and yours.
as long as questions are flying around i have a couple.
has the military expressed interest in the round for testing and possible adoption?
has H&K expressed interest in chambering the XM-8 project in 6.5 Grendel?
that would be awesome if H&K won the contract for the M-8 and chambered it in 6.5. our fighting mend and women could finally have a modern replacement for the M-16 chambered in something decent. (just my opinion)
Bobby
atek3
Member
unfortunatly, no
nope.
02Overlander
Member
Are you sure about that?
atek3
Member
feel free to contradict me anyone. But even adoption of the (arguably) inferior 6.8 SPC looks really doubtful at this point.
atek3
atek3
02Overlander
Member
expressing interest and actually adopting are two different deals, I highly doubt the 6.5 or the 6.8 will ever be fully adopted but interest has been expressed in the 6.5
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