Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Reloading Press
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Trickymissfit" data-source="post: 852240" data-attributes="member: 25383"><p>you know what my line work was, so you probably know that I had access to just about any device to check alignments with. I had a 4", 6", and a 12" cylinder squares that had a magnetic base. These were "lab grade", and all error in them was calibrated (the 12" one had .000033" and .00015" taper in it). The four inch one was extremely close, and all it's error was measured in tenth of an arc seconds. Just be sure to rotate the square 180* to figure the built in error of the square out of what you measure. I was lucky in that the post on the four inch square was 20mm in diameter, so it would pass right thru the slots on the Forster. Had I todo all over again, I'd have used the 12" one as it'd been easier to work with.</p><p> </p><p>After you make you inspection, you might find it kind of interesting to check the press under a load in several places (I like doing it in three points 90* apart). Nice thing about the conventional "O-frame" presses is they are pretty easy to rebuild, should you desire to do one. That knee mill and a good angle plate will make the job a lot easier than doing it in a vertical machine. I know an old guy that chambers his barrels on a war finish K&T knee mill, and they usually come in at about +/- .00015"! </p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 852240, member: 25383"] you know what my line work was, so you probably know that I had access to just about any device to check alignments with. I had a 4", 6", and a 12" cylinder squares that had a magnetic base. These were "lab grade", and all error in them was calibrated (the 12" one had .000033" and .00015" taper in it). The four inch one was extremely close, and all it's error was measured in tenth of an arc seconds. Just be sure to rotate the square 180* to figure the built in error of the square out of what you measure. I was lucky in that the post on the four inch square was 20mm in diameter, so it would pass right thru the slots on the Forster. Had I todo all over again, I'd have used the 12" one as it'd been easier to work with. After you make you inspection, you might find it kind of interesting to check the press under a load in several places (I like doing it in three points 90* apart). Nice thing about the conventional "O-frame" presses is they are pretty easy to rebuild, should you desire to do one. That knee mill and a good angle plate will make the job a lot easier than doing it in a vertical machine. I know an old guy that chambers his barrels on a war finish K&T knee mill, and they usually come in at about +/- .00015"! gary [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Reloading Press
Top