Re: Tikka t3 223 varmint question
When in doubt, I take a cleaning rod with a jag and tight patch and insert it partially in to the bore. I place a mark where the rod meets the back end of the receiver. I then put a piece of tape around the back end of the cleaning rod and mark it horizontally on the top with a line. I push the rod slowly through the barrel until the mark makes one rotation back to the top. Then place a mark where the rod now meets the back of receiver. Pull rod out and measure between the 2 receiver marks. If it is 8", then it is a 1 in 8 twist.