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Rifles, Reloading, Optics, Equipment
Gunsmithing
Questions about reamers
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<blockquote data-quote="Alex Wheeler" data-source="post: 1352055" data-attributes="member: 101859"><p>I have over 70 JGS reamers and 90% of them are my specs. They continue to amaze me with their service, and I am a picky sob. I measure my chambers so I know if the reamers are right. Thats said, find a good smith who has experience with what you want to do. Reamer grinders are tool makers not gunsmiths and they mostly get their info from gunsmiths. Not always good info. If you want your own reamer make a dummy with the bullet seated where you want it. If its to be a no-turn, ad .004-.005 over a loaded neck diameter for your neck size. They will measure your freebore, but if the bullet is seated out where I like it you will end up with about a .275 freebore. Have them go with a 3 degree lead angle (per side) as the throat is going to burn out fast enough as it is. The 3 degree works great with the 195. Ask for saami minimum on case body specs, no smaller. And I'd probably ad .001 to the .2" number over saami minimum so dies will work better.</p></blockquote><p></p>
[QUOTE="Alex Wheeler, post: 1352055, member: 101859"] I have over 70 JGS reamers and 90% of them are my specs. They continue to amaze me with their service, and I am a picky sob. I measure my chambers so I know if the reamers are right. Thats said, find a good smith who has experience with what you want to do. Reamer grinders are tool makers not gunsmiths and they mostly get their info from gunsmiths. Not always good info. If you want your own reamer make a dummy with the bullet seated where you want it. If its to be a no-turn, ad .004-.005 over a loaded neck diameter for your neck size. They will measure your freebore, but if the bullet is seated out where I like it you will end up with about a .275 freebore. Have them go with a 3 degree lead angle (per side) as the throat is going to burn out fast enough as it is. The 3 degree works great with the 195. Ask for saami minimum on case body specs, no smaller. And I'd probably ad .001 to the .2" number over saami minimum so dies will work better. [/QUOTE]
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Questions about reamers
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