I've run across the notion of "timing" as applied to rifle actions, and I must admit that I don't know what this means precisely. Can someone explain?
do a search for dan40x posts about the timing involved in a remington 700.
Involving bolt handles I prefer the term indexing.
With a 700 action I refer to timing as the fit of the cocking piece in relation to the sear and how much '#### on closing' there is, and how much 'bump' there is holding the shroud in position. A 700 action timed correctly is so much smoother in operation. This involves removing metal from the back of the bolt and from the cocking piece. Keep a spare cocking piece on hand in case you screw it up.
Involving bolt handles I prefer the term indexing.
With a 700 action I refer to timing as the fit of the cocking piece in relation to the sear and how much '#### on closing' there is, and how much 'bump' there is holding the shroud in position. A 700 action timed correctly is so much smoother in operation. This involves removing metal from the back of the bolt and from the cocking piece. Keep a spare cocking piece on hand in case you screw it up.
Ok. Then the timing was the problem with my rem 700 action with a new trigger tech trigger. It cocked on closing just fine with the original trigger.
Well, maybe. If it worked with the original, it's hard to say for sure whether it's the rifle timing or the new trigger. - dan
Guntech, I agree with your preference in terms. "Indexing" is a good descriptor for what has been described above. To me, "timing" suggests an ordering of things in time, which is not really what is being described here. After some reading on this, I believe I've seen what you have described as "the fit of the cocking piece in relation to the sear" referred to as "ignition timing." Some of that form of "timing" is also concerned with the placement of the sear and front of the cocking piece which will affect the length and force of the striker travel and ultimately lock time. As for #### on closing, I've discovered (from Stuart Otteson's books) that virtually all "#### on opening" actions have a #### on closing component as well--with most actions showing a 3:1 or greater ratio of opening to closing (in some cases much greater. as in the case of the Sako L461 "Vixen" action with which there is almost no mainspring compression on closing), but with some a more equal division between opening and closing, as with the Sauer 80 action which shows a 2:1 ratio.Involving bolt handles I prefer the term indexing.
With a 700 action I refer to timing as the fit of the cocking piece in relation to the sear and how much '#### on closing' there is, and how much 'bump' there is holding the shroud in position. A 700 action timed correctly is so much smoother in operation. This involves removing metal from the back of the bolt and from the cocking piece. Keep a spare cocking piece on hand in case you screw it up.