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Old February 2, 2011, 06:30 AM   #20
P-990
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Join Date: May 2, 2002
Location: Only1/2WayThere
Posts: 1,063
Quote:
no i sure am not. Custom Savage with 28 inch stainless steel bull barrel
There's the issue right there. You have 8" more barrel than an AR-15 Service Rifle (20"). So I could easily see getting 2800+ with that much tube.

Let's figure:

2700-fps from a 20" Service Rifle

+25 fps/in * 8" = 200

2900-fps for a 28" .223

To be fair, I assumed the OP was talking about a 20" barrel on his Bushmaster match.
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