Post by: RobD on August 02, 2016, 09:00:24 AM
(http://i.imgur.com/dDao69c.jpg)
(http://i.imgur.com/GggHhDw.jpg)
(http://i.imgur.com/jt7xZjm.jpg)
(http://i.imgur.com/Zhz5Jka.jpg)
(http://i.imgur.com/Rs6lg9K.jpg)
(http://i.imgur.com/jYsqwoH.jpg)
(http://i.imgur.com/WZnf8Gi.jpg)
Post by: Sneakon on August 02, 2016, 09:19:32 AM
Post by: Hanshi on August 02, 2016, 10:20:44 AM
Post by: rollingb on August 02, 2016, 10:37:45 AM
Post by: greyhunter on August 02, 2016, 11:36:51 AM
I'm up for that!
Post by: Uncle Russ on August 02, 2016, 12:21:48 PM
Thanks for sharing.
Uncle Russ...
Post by: One Shot on August 03, 2016, 01:47:32 AM
Now, where does one buy them?
Post by: RobD on August 03, 2016, 05:38:09 AM
Post by: Ironhand on August 04, 2016, 01:19:09 AM
Ironhand
Post by: RobD on August 04, 2016, 05:26:05 AM
Quote from: "Ironhand"
How well do they stay put under recoil?
Ironhand
you must not be familiar with the incredible strength of neodymium rare earth magnets - they laugh at the recoil of 90 grains of swiss 3F and .600" 323 grain ball! you simply can't easily move a neo mag that's stuck like glue to a piece of iron. it's hard enuf to move the sucker by hand.
Post by: Uncle Russ on August 04, 2016, 01:56:01 PM
Quote from: "rfd"
That's enough to get me on-board!Quote from: "Ironhand"How well do they stay put under recoil?
Ironhand
you must not be familiar with the incredible strength of neodymium rare earth magnets - they laugh at the recoil of 90 grains of swiss 3F and .600" 323 grain ball! you simply can't easily move a neo mag that's stuck like glue to a piece of iron. it's hard enuf to move the sucker by hand.
Uncle Russ...
Post by: Skychief on August 21, 2016, 09:30:00 AM
A couple questions....Do you know if these are able to be shaped with a file fairly easy? I can see how filing one to form a base on its edge, then attaching said edge upon the top barrel flat would make for a clean looking peep sight.
Another question is, if a guy can file a flat spot on an edge as described above, would that edge attach to a barrel flat, or, is it what the "faces" of the magnets that are attracted to steel?
Finally, if all of the above will work, are the magnets strong enough to "stay put" attached to the barrel flat by only the flat edge which has been filed into it?
Really appreciate your posting this as I'm having more trouble with open sights , especially in the shadowy squirrel woods this year.
Best regards, Skychief
Post by: RobD on August 21, 2016, 09:49:42 AM
Quote from: "Skychief"
rfd, thanks a lot for sharing this with us!
A couple questions....Do you know if these are able to be shaped with a file fairly easy? I can see how filing one to form a base on its edge, then attaching said edge upon the top barrel flat would make for a clean looking peep sight.
no, neodymium rare earth magnets are preformed and don't take kindly to filing or drilling. direct, intense heat is not good for magnets, either.
however, flat sided neo's with center holes are available from - K&J Magnetics: Countersunk Magnets (http://www.kjmagnetics.com/products.asp?cat=173) - they're thickness magnetized, and may require another similar flat edged neo placed in front (or behind) one that's to stand vertically on its edge.
Another question is, if a guy can file a flat spot on an edge as described above, would that edge attach to a barrel flat, or, is it what the "faces" of the magnets that are attracted to steel?
neo mags come in varying magnetic (gauss factor) strengths according to their size and composition. choosing a thicker or overall larger magnet will make it stronger. KJ lists their neo mag offerings in pounds of pull strength. as an example, this 1/2" square by 1/4" thick neo has 9-1/2 pounds of attraction strength - that's a LOT!
(http://www.kjmagnetics.com/prodimages2/250/B884DCSone.jpg)
Finally, if all of the above will work, are the magnets strong enough to "stay put" attached to the barrel flat by only the flat edge which has been filed into it?
see my comments above!
Really appreciate your posting this as I'm having more trouble with open sights , especially in the shadowy squirrel woods this year.
that's the idea - poor vision focus is always increased via a rear aperture.
Best regards, Skychief
Post by: Skychief on August 21, 2016, 11:02:11 AM
I plan to monkey around here today with some sheet brass for making a hillbilly, L-shaped aperture sight attached by the rifles tang screw. I like the magnet idea real well and hope to place an order.
I never thought my vision would get to where it has, but, I'm soon to join the ranks with the "old timers".
Thanks much again for sharing this idea here, Skychief
Post by: RobD on August 21, 2016, 11:46:13 AM
Post by: HawkeyeMama on January 15, 2017, 01:15:13 PM
Post by: RobD on January 15, 2017, 06:54:31 PM
well, i think that'll work as long as the front blade and mags used were all of the right dimensions, and there was enuf room on the top barrel flat. that little "house" would sure give shade, if that was what's needed. the other alternative is a 17a globe front, with the advantage of variable apertures, as well as the shade feature.
Post by: HawkeyeMama on January 15, 2017, 07:28:30 PM
Post by: HawkeyeMama on January 15, 2017, 07:29:18 PM
Post by: RobD on January 15, 2017, 07:49:15 PM
and yes - aperture/peep sights are illegal at many events/matches, so having a peep and/or shaded front that can be pulled off for such shooting makes sense.
Post by: Uncle Russ on January 15, 2017, 11:41:21 PM
Quote from: Rob DiStefano
ruffles or rifles, it's all good. :)
and yes - aperture/nomany events/matches, so having a peep and/or shaded front that can be pulled off for such shooting makes sense.[/ quote]
Me thinks that Rob DiStefano is a pretty helpful fella, on a lot of good stuff!
Uncle Russ...