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Dave McC · September 30, 2012, 02:34 PM

I seem to recall some tests the NRA did a good while back. They took, IIRC, a Marlin Goose gun with a 36" barrel and chrono'd it, then picked up the hacksaw. Cutting the barrel in 1 inch increments, they'd shoot a field load,chronograph 10 shots, then cut again.

Between 18 and 30", there was more variation between shots at a given length than between 18 and 30". Velocities at 16" almost mirrored those at 36".

September 30, 2012, 02:34 PM	#10
Dave McC Staff In Memoriam Join Date: October 13, 1999 Location: Columbia, Md, USA Posts: 8,811	I seem to recall some tests the NRA did a good while back. They took, IIRC, a Marlin Goose gun with a 36" barrel and chrono'd it, then picked up the hacksaw. Cutting the barrel in 1 inch increments, they'd shoot a field load,chronograph 10 shots, then cut again. Between 18 and 30", there was more variation between shots at a given length than between 18 and 30". Velocities at 16" almost mirrored those at 36".