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Bart B. · April 26, 2013, 05:50 PM

As far as I know, all the reamers used on the US Palma Team's rifles are pretty much standard SAAMI spec ones except the leade will be a bit short so the Sierra 155's will be pushed into the lands a bit when the round's chambered. That the only critical chamber point for the ammo.

The rest of the chamber does not have to be a perfect fit to the case except for having a 1.630" headspace (or whatever allows about .002" of head clearance for issued ammo). All the ammo (new cases or full length sized ones) will center perfectly up front in the chamber anyway.

April 26, 2013, 05:50 PM	#43
Bart B. Senior Member Join Date: February 15, 2009 Posts: 8,927	As far as I know, all the reamers used on the US Palma Team's rifles are pretty much standard SAAMI spec ones except the leade will be a bit short so the Sierra 155's will be pushed into the lands a bit when the round's chambered. That the only critical chamber point for the ammo. The rest of the chamber does not have to be a perfect fit to the case except for having a 1.630" headspace (or whatever allows about .002" of head clearance for issued ammo). All the ammo (new cases or full length sized ones) will center perfectly up front in the chamber anyway. Last edited by Bart B.; April 26, 2013 at 06:49 PM.