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What's entailed in rechambering a .458 Win Mag to .458 Lott?

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25 October 2007, 20:56
GAHUNTER
What's entailed in rechambering a .458 Win Mag to .458 Lott?
Other than simple reaming, is there magazine or feed rail work that needs to be done?

The rifle in question is an older Whitworth.
25 October 2007, 21:11
tsturm
quote:
Originally posted by GAHUNTER:
Other than simple reaming, is there magazine or feed rail work that needs to be done?

The rifle in question is an older Whitworth.


The mag box will need to be longer & the transition area where the feed rails start to narrow will probably need a little work. Wink & the action lengthened mostly to the rear. (don't want to grind away too much of that lower lug Frowner)


28 October 2007, 02:58
Oldcoyote
Don't you already have a .458 Lott?


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29 October 2007, 04:33
Duane Wiebe
HI TSTURM: On a Mauser, the limiting factor for rearward "lengthening" is dictated by the bolt stop...maybe MAYBE .050 or so, but now the bolt face will not line up with the front wall of the magazine...okay,,,maybe thin that out some, but where will you get the rest? On a M-70, you still have the magazine box/bolt face alingement issue, but the magazine box is at the most .050 thick even if you remove metal from the bolt stop. I'm not trying start a fight in a telephone booth, but I'd really appreciate any enlightening information...what am I missing?
29 October 2007, 20:02
tsturm
quote:
Originally posted by tsturm:
quote:
Originally posted by GAHUNTER:
Other than simple reaming, is there magazine or feed rail work that needs to be done?

The rifle in question is an older Whitworth.



You are correct, Let me reword that.

The mag box will need to be longer & the transition area where the feed rails start to narrow will probably need a little work. & the action lengthened as much as Possible Wink to the rear (You don't want to grind away any more than necessary of that lower Front locking lug Frowner)