Reloading questio

Kentucky

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Hey folks, been reloading for a number of years now and believe it or not have never heard of OR set up for head space. Just ignorance. Watched a video from RCBS on thier Precision Mic. According to the video the cartridge specific Mic is designed to read zero for minimum SAMI spec. I took a once fired 22-250 case and it read .002-.003 thousands SHORTER than minimum. Any ideas how this is possible? Thanks for any help. The rifle is a Savage if that helps any.
 
it is head CLEARANCE, head space is a characteristic of a chamber and bolt face in a rifle.
did you remove your ejector and extractor for the measurement ?
do not get concerned with the measurement, get concerned with sizing cases that fit without forcing the bolt...it should almost close on its own.
is it a savage "nut" on the bbl ? they are actually adjustable for head space.
but you really need a head space gauge not a reloading tool or a fired case.
 
once fired is not fully expanded . you will need to neck size only another time or two . when the brass starts to feel tight when closing the bolt the brass is fully expanded . use this fully expanded brass to measure and set up your dies .
 
This tool is very helpful when setting up your dies after your brass has fully expanded.

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Hey folks, been reloading for a number of years now and believe it or not have never heard of OR set up for head space. Just ignorance. Watched a video from RCBS on thier Precision Mic. According to the video the cartridge specific Mic is designed to read zero for minimum SAMI spec. I took a once fired 22-250 case and it read .002-.003 thousands SHORTER than minimum. Any ideas how this is possible? Thanks for any help. The rifle is a Savage if that helps any.
A possible reason for this is the actual chamber is right at minimum and the brass has "sprung back" after firing. It isn't a problem as long as the cartridges chamber without interference
 
A possible reason for this is the actual chamber is right at minimum and the brass has "sprung back" after firing. It isn't a problem as long as the cartridges chamber without interference
I have heard that Savage has tight tolerances from factory. I was thinking that this was the case but was wanting someone else's to say it. LOL That's the only thing that makes any sense to me
 
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