303 British case checker/gauge

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   I have Lyman case checkers for othe calibers I reload. I don’t see that 303 British is available from Lyman. However I do see it is from the shooters box. 
https://www.theshootersbox.com/303-British-Case-Ammunition-Gauge_p_52539.html

Any experience with this one? Do you use them? Do they even work when the brass is fire formed to a particular chamber and neck sized?

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slowindown Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: January 16 2024 Location: MS, USA Status: Offline Points: 108	Post Options Post Reply Quote slowindown Report Post Thanks(0) Quote Reply Topic: 303 British case checker/gauge Posted: January 24 2024 at 5:22am
	I have Lyman case checkers for othe calibers I reload. I don’t see that 303 British is available from Lyman. However I do see it is from the shooters box. https://www.theshootersbox.com/303-British-Case-Ammunition-Gauge_p_52539.html Any experience with this one? Do you use them? Do they even work when the brass is fire formed to a particular chamber and neck sized?

britrifles Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: February 03 2018 Location: Georgia, USA Status: Offline Points: 8404	Post Options Post Reply Quote britrifles Report Post Thanks(0) Quote Reply Posted: January 24 2024 at 9:20am
	I've got Wilson case gages, and rarely (if ever) use the .303 gage. For chamber fireformed brass that you are neck sizing, the case head will protrude from the bottom of the gage, so it's not really useful. And, you don't want to FL size all the way back to the gage dimensions either as this typically pushes the shoulder back far too much. I use a Hornady Headspace Comparator for that purpose (or you can use the rifles chamber for that matter). The only thing I find these gages useful for is reloading for auto-loading rifles like the M1 and AR-15; they are a quick way to confirm your dies are set up correctly, and I run the first sized case thru the gage every time I resize a batch of cases. For checking case length, it's quicker to set your calipers to the max case length and use the calipers as a GO/NOGO gage, very quick.

slowindown Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: January 16 2024 Location: MS, USA Status: Offline Points: 108	Post Options Post Reply Quote slowindown Report Post Thanks(0) Quote Reply Posted: January 24 2024 at 9:43am
	Thanks. I was thinking it wouldn’t be helpful with neck sized 303b. I currently use them for 30-06 (Garand), .223 and 7.62x39.

Sapper740 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: July 15 2021 Location: Texas Status: Offline Points: 1737	Post Options Post Reply Quote Sapper740 Report Post Thanks(0) Quote Reply Posted: January 24 2024 at 12:57pm
	I only use such case gauges for ammunition I plan on firing in autoloaders and pistols.

Shamu Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 20510	Post Options Post Reply Quote Shamu Report Post Thanks(0) Quote Reply Posted: January 25 2024 at 1:25pm
	The "Hornady Headspace Comparator" one is great, They used to drill tap one of your own fired cases, not sure if they still do though. Its a standard thread so you can D&T yourself easily.
	Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)