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10/28/2015 11:28:33 AM EDT
Maybe someone has information on this or history but I was thinking and have a question.
The .300 Whisper though based upon the .221 Fireball, is being loaded in re-formed .223 cases, which allows use of the standard bolt.
So, being a fan of the 6.8SPC, why hasn't someone used a .223 case re-formed to accept the .277 bullets, which would create a greater ease of transition to the 6.8?
I shoot .223 and 6.8SPC out of my MSAR XM7-E4, I have the 6.8 bolt and .223 bolt and accompanying barrels and mags, but creating a 6.8 that uses .223 casings would mean no bolt or mag changes.
Have I missed some historical occurrence, doesn't this seem like a better mechanical transition?
I look at the measurements and case capacities and they seem to be close enough.
Thanks for any input.  KWD
10/28/2015 12:16:38 PM EDT
[#1]
6.8 MPC I think it's called.

Waste of time. We don't need a new caliber.
10/28/2015 1:21:49 PM EDT
[#2]
.277 Wolverine?
10/28/2015 3:24:09 PM EDT
[#3]

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Quoted:


.277 Wolverine?
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10/28/2015 4:13:27 PM EDT
[#4]
Here you go OP. You can even buy some.


Win
11/1/2015 11:27:41 PM EDT
[#5]
300 Whisper is based on a necked up .221 case; it's easier to cut then neck up a .223 case, and the head dimensions and body tapers are identical between the Fireball and the .223 Remington.  And there's a WHOLE LOT more .223 brass around than .221 brass...

So why not a necked up .223 case that handles a .277 bullet?  There are several; the .277 Wolverine, mentioned above, is one.  So far none of them has gained a lot of traction, so they're not as "visible" as other rounds.
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