Quote:
Originally Posted by rsilvers
Only SSK makes Whisper(R) barrels.
AAC has 300 AAC BLACKOUT barrels in stock for Rem 700.
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Pac-Nor's web site says they chamber in 300 Whisper:
http://www.pac-nor.com/wildcat/
And so does Thompson Center:
http://www.tcarms.com/search/index.p...isper+&x=0&y=0
I don't know what agreement either has with SSK for the use of the name.
Having an agreement to use the name doesn't necessarily mean any of those three the chambers have the same dimensions or the same throat.
Since SSK hasn't made the 300 Whisper dimensions official and public what is "correct"?
Who cares whether a chamber is called a 300 Whisper, 300 Fireball, 300-221 or even a 300BLK other than for marketing purposes? If the end user who brings the chamber, cartridge, and handloads together can't get complete "official" chamber and cartridge drawings and specifications, they're only guessing whether those four names (or other similar wildcats) all be functionally identical, be "close enough" be useful, be different enough they may not function well, or so different as to be dangerous. That includes throats too, not just the chambers.
And a 300-221 (generic) which is ideal in a AR-15 may be quite different from a cartridge which is ideal in a short action bolt rifle and with a wide range of barrel lengths, even if they're all supposed to be "subsonic".