Web2 aug. 2012 · Then bump the longest cases .003 to .004 Thumb rule, bolt action .001 to .002 and semi .003 to .004 (some thumbs may be shorter) The average full length resizing die will push the shoulder back .002 smaller than minimum headspace or the GO gauge when it makes hard firm contact with the shell holder. (some dies will go further) Web2 apr. 2011 · 834 Posts. #2 · Apr 2, 2011. O.K. you bump the shoulder when a round becomes sticky to CLOSE the bolt on. You need to trim once a sized case (not just fired) gets close to MAX length you then trim it to TRIM length, both of these lengths you should find in your loading manuals. You then need to chamfer and deburr your case mouth again.
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Web28 jun. 2024 · Now that I know the measurements, its easy to tell which rifle they came from by measuring the base to datum with a comparator and a headspace/gauge bushing and bump the shoulder as needed. I just start with the FL die set high off the shell plate and keep adjusting the die downward in small increments after sizing the brass and … Web4 dec. 2014 · How much do you bump your shoulders back for a 5.56 chambered rifle. I've read varying reasons and personal preferences ranging from 0.002" to 0.005", that being … fairfield inn waxahachie tx
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Web4 mrt. 2024 · 1. Whidden Gunworks Shoulder Bump Gauge. There are a variety of tools that can be used to measure shoulder bump. Our favorite is a special cartridge-specific … Web17 sep. 2016 · Joined Jul 24, 2013. 4,712 Posts. #2 · Sep 17, 2016. If you bump size with a FL die, your resizing everything in one shot. Shoulder, case diameter, and neck. You can get a Redding body die, that will not touch the neck. You'll only be sizing the shoulder and diameter of the case. You can then run it through the neck die to set your tension. Web9 okt. 2016 · John Whidden has a nice tool to measure shoulder set back. I found that my Forster press would bump the shoulder back .006 to .008. With this tool I was able to … dog who loves bowls