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You can now but when the whispers first came out, the technical info of barrel twist, dimensions, loads, and suppressor design was a well kept secret, the chamber reamer was protected under a patent...

Because the 7.62x39 commonly has a 1-10.5" .310" 312" bore not a .308" and wont shoot the long 240gr SMK.
Shooting 123-125gr bullets they are much the same.

Before I purchased my first .300...

Yes the .338 had much better range and the 300gr bullet is longer than the 240gr .300 whisper bullets meaning bigger knife like wounds. The red hind in the pic above was taken at a little over 200y. ...

Yes my wording may have confused that sorry. They yaw and tumble after impact not (mid flight) creating long knife like wounds.

To add insult to injury and to piss all over JD's grave someone is now releasing an "8.6 Creedmoor" ( .338 Blackout)... yip a cut down 6.5 Creedmoor case necked up to .338cal.

AKA .338 WHISPER...

Yes there have been many advances in this technology since this article was written with softer light weight lead hollow points such as Roberts and pre cut expanding copper bullets like the Lehigh...

An interesting "flashback" of an article abut the .300 whisper which has now been SAAMI speced and renamed .300 Black Out

Article sourced from New Zealand Guns & Hunting. Sept/Oct 2003.
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