New member... great to find a place I can get some info on this caliber. I got a 300 whisper in a M4 (soon to be dissipator) configuration. Love the idea of the caliber as it's an answer to my prayers... I like nice heavy projectiles with a big thump. I read some interesting numbers on the 300 whisper loaded with the "Lil Gun" powder. with a little over 12grs or Lil Gun they were getting a 200gr sierra btsp over 1500fps. Now I have no plans on using a suppressor so I want big heavy bullets going as fast as I can safely get them. Does anyone have any loading data on the 240 sierra btsp or bthp used in conjunction with "Lil Gun" powder? Any and all info would be helpful here guys. Thanks.
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