Originally Posted by
Jenks
Thanks Younggun. I have been reading up on the Invector system, someone wrote that the plus system has a .740 bore while the old system has a .728 bore. It is supposed to improve patterns and velocity to some degree. I tracked down a modified tube and a wrench, it is supposed to have a full tube in it. I bought it because it was pretty, won't use it much because I don' use my old Savage pump much. Thanks again.
I doubt the over bore will increase velocity, but it will give more consistent and even patterns. Also, and this is purely personal opinion, I would get rid of the original chokes, put in a drawer or whatever, if you are planning on shooting it much. Go to a set of extended chokes. Especially if you are planning on using just 1 tube more than any of the others. I have had to remove more chokes than I care to count that were flush mount chokes and were not serviced/maintained properly. The owner did not put choke tube lube or anti-seize grease on them and they locked into place. A nightmare to get out!!!