WebSep 8, 2024 · Absolutely true: set headspace .002” back from *fully* fire formed shoulder length. I also resize initially without bumping the shoulder until I’m sure the brass is snug on just the shoulder when I close the bolt. Then I reset the die depth to push back .002”. It doesn’t seem to matter what comparator tool I use for the purpose. WebBoth Standard and Short Modular Headspace Comparator Bodies have two clamping configurations when mounting to your dial calipers. Configuration “C”: Centered. With the 10/32 Thumb Screw mounted on the bottom side with a “C” means that the Modular Headspace Comparator Body will be centered on the dial calipers. This is standard for …
Headspace Comparators / Bullet Inserts - Short Action Customs, LLC.
WebMay 8, 2024 · Location. Texas. If you had excessive headspace your brass would grow excessively in the chamber upon firing. If you have a body comparator, measure some new or sized cases then compare to a few fired in your chamber. If your case shoulder length grows by something like .010-.020"+" then you have excessive headspace. WebFeb 11, 2015 · Recommended for all 300 BLK. reloaders. Factory sized 300 BLK. run about 1.068"- 1.069" and some factory measuring shorter with the Hornady Headspace gauge. In both my 300 BLK uppers the bolt will barely with force close on 1.077- 1.078". I set my Hornady or RCBS sizer to push shoulders back to 1.073"-1.074" with some being a … clockwork knight dst
HANDS-ON: Short Action Customs Modular Headspace Comparator …
WebSep 15, 2024 · The Short Action Customs Modular Headspace Comparator Kit is a billet machined tray for holding two comparator bodies and insets/spaces for 12 modular … WebInstant Indicator Headspace and Bullet Comparator Designed specifically for shooters who are seeking the utmost in accuracy from their handloads. This instrument provides an extremely fast and accurate method for … WebEach headspace comparator and bullet insert is machined from 17-4 stainless steel. This material will prevent the inserts from wearing out over time. What makes these … clockwork knight don\u0027t starve