UNported = unported
Standard porting = 4 rows 3" long
Double porting = 8 rows 3" long
SQB is 8 rows 3 inches long, plus 4 of the 8 rows extends to 6 inches long.
Middle is 4 rows of porting 3 inches long starting iin the front middle of the barrel (so if you section the barrel into sections its the 50%-75% lengthso think of each = as a inch ======PPP=== so not entirly middle but front middle.
gen2 barrels were not part of the origional test but wil be part of the next test. for more sound info theres a thread in the punkworks main forum where I had a few of the sound tests ive done posted up. all of them will be redone when I get a new sound meter I can hook to the computer directly however
This post has been edited by bvdave: 13 February 2010 - 01:21 PM