Reloading for a semi ...

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Tikka223

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I'm not sure if this question has been asked before so I'll apologize if I create a duplicate thread.

I have a Benelli MR1 on it's way to me and I plan on reloading for it. I presently reload for my bolt gun and have been told that for the best accuracy you want the OAL set for either a .001 jump or a .001 jam to / into the lands. Does this hold true for semis? I ask because of the fine tolerances and the violence of the bolt cycling back and forth with each shot. I don't want to set myself up for stoppages or worse.

Suggestions?
 
With a semi-auto, you would NOT want to jam that bullet at all.
FL sizing is needed for reliable semi operation, with Small Base dies being required for some rifles.
I would be seating the bullet with .020" of clearance off the lands, or to magazine length, whichever is shorter.
Regards, Eagleye.
 
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