Thread: Worlds fastest?
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Old November 19, 2012, 08:05 PM   #7
Brian Pfleuger
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Join Date: June 25, 2008
Location: Central, Southern NY, USA
Posts: 18,377
The .22 Eargesplitten Loudenboomer is a real cartridge and holds the record as far as I know.

http://en.wikipedia.org/wiki/.22_Ear...n_Loudenboomer

4,000 isn't even hard anymore. There are several cartridges that beat 4,000 easily.

I load 35gr Nosler BT in 22-250 over 40.5gr W748, getting a true, chronographed 4,435fps and its not even a max load.... that's with a 24" barrel.

QuickLoad says a 36" barreled .22-250AI firing a 30gr Barnes Varmint Grenade could hit 5,077fps at just 57,000psi. Taking it up to 72,000psi, which isn't really all that unreasonable, QuickLoad says you could get 5,281... a mile per second almost exactly.
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