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Old December 30, 2007, 05:05 PM   #2
Scorch
Senior Member
 
Join Date: February 13, 2006
Location: Washington state
Posts: 15,249
You will likely have problems reliably cycling the AR action with any cast bullet load. Cast bullets are difficult to propel at over 2,700 fps, and since they are softer they require less pressure to grave and propel than jacketed bullets, meaning they will likely never hit the pressure required to operate your rifle.
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