A number of newer bolt-action rifles have the bolt lock up in the barrel, rather than the more-common pattern of locking up in the receiver. Examples that come to mind are the newer Anschutz centerfire rifles and the new line of Schultz & Larsen switch-barrel rifles, but there are many more, particularly the switch-barrel brands, with this newer feature.
So I’m curious about the advantages and disadvantages of this newer design. Obviously, fitting a new after-market barrel the traditional way is precluded, although many of these brands provide replacement barrels that drop right into the actions. I guess I’m most curious about the effects, if any, on accuracy potential. Does the lock-up in the barrel ensure greater in-line conformity between bolt and barrel—and, as a result seated cartridges in better alignment with the barrel perhaps resulting in superior accuracy? Are there any strength issues favouring one over the other? Is barrel-steel hardness a factor?
What are your thoughts?
So I’m curious about the advantages and disadvantages of this newer design. Obviously, fitting a new after-market barrel the traditional way is precluded, although many of these brands provide replacement barrels that drop right into the actions. I guess I’m most curious about the effects, if any, on accuracy potential. Does the lock-up in the barrel ensure greater in-line conformity between bolt and barrel—and, as a result seated cartridges in better alignment with the barrel perhaps resulting in superior accuracy? Are there any strength issues favouring one over the other? Is barrel-steel hardness a factor?
What are your thoughts?
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