What the heck is this?
- Thread starter Janno05
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kiwikid
Well-Known Member
It may be a Chamfer Guage.
It appears to be the Raven 22 rimfire rim thickness gauge. The concept is to segregate the ammo by rim thickness which will result in same jump to lands. Supposed to improve groups.
https://www.google.com/search?q=bald+eagle+22+rim+thickness+gauge&tbm=isch&source=iu&ictx=1&fir=-cMHjEUjp44d4M%3A%2C9UtsRu00zma7XM%2C_&vet=1&usg=AI4_-kQ4nVRBccDtbU-Rh77iVZ-QAbBI_Q&sa=X&ved=2ahUKEwiO582C4afjAhVjHTQIHVJoAGgQ9QEwCHoECAgQEg#imgdii=6z8wbMX4d7doHM:&imgrc=4KW2XrgFBq_pUM:&vet=1
https://www.google.com/search?q=bald+eagle+22+rim+thickness+gauge&tbm=isch&source=iu&ictx=1&fir=-cMHjEUjp44d4M%3A%2C9UtsRu00zma7XM%2C_&vet=1&usg=AI4_-kQ4nVRBccDtbU-Rh77iVZ-QAbBI_Q&sa=X&ved=2ahUKEwiO582C4afjAhVjHTQIHVJoAGgQ9QEwCHoECAgQEg#imgrc=4KW2XrgFBq_pUM:&vet=1
Accurate shooter has an article:
http://bulletin.accurateshooter.com...hickness-tool-and-base-to-ogive-length-gauge/
https://www.google.com/search?q=bald+eagle+22+rim+thickness+gauge&tbm=isch&source=iu&ictx=1&fir=-cMHjEUjp44d4M%3A%2C9UtsRu00zma7XM%2C_&vet=1&usg=AI4_-kQ4nVRBccDtbU-Rh77iVZ-QAbBI_Q&sa=X&ved=2ahUKEwiO582C4afjAhVjHTQIHVJoAGgQ9QEwCHoECAgQEg#imgdii=6z8wbMX4d7doHM:&imgrc=4KW2XrgFBq_pUM:&vet=1
https://www.google.com/search?q=bald+eagle+22+rim+thickness+gauge&tbm=isch&source=iu&ictx=1&fir=-cMHjEUjp44d4M%3A%2C9UtsRu00zma7XM%2C_&vet=1&usg=AI4_-kQ4nVRBccDtbU-Rh77iVZ-QAbBI_Q&sa=X&ved=2ahUKEwiO582C4afjAhVjHTQIHVJoAGgQ9QEwCHoECAgQEg#imgrc=4KW2XrgFBq_pUM:&vet=1
Accurate shooter has an article:
http://bulletin.accurateshooter.com...hickness-tool-and-base-to-ogive-length-gauge/
Last edited:
johnnyk
Well-Known Member
AZshooter nailed it.
kiwikid
Well-Known Member
That certainly makes sense!
KyCarl
Well-Known Member
Yes my buddy shoots .22 matches and he "batches" his ammo by thickness
He claims it also affects lock time? Some of that .22 stuff can run 15 bucks a box!
He claims it also affects lock time? Some of that .22 stuff can run 15 bucks a box!
Thank you!
I don't usually shoot .22 for accuracy, more for quiet suppressed fun. Is there anything else I can do with the dial indicator to get more use out of it? I would like to get set up with a concentricity gauge eventually, do they come without the dial?
lancetkenyon
Well-Known Member
Why/how do you have it coming your way if you don't know what it is? Shopaholic? Or handmedown tool?
Friend of my uncle passed away, and he ended up getting a bunch of reloading and firearms stuff. He is sending the stuff he won't use my way.
ntsqd
Well-Known Member
Really want a test indicator for a concentricity gauge. Like this: https://www.mscdirect.com/product/details/62691613 A dial indicator like that doesn't have enough resolution.
They come without the dial. You can also use Calipers...but Ive found the Dial is faster. Hours of "enjoyment" picking through .22 bullets...and in my opinion, worth the effort.
kiwi49
Well-Known Member
I tend to use target 22 ammo from a reputable manufacturer.
My Anschutz and I shot very well at the local indoor range.
10 scoring targets - 100 with 9 centre bulls.
Ammo was Eley match - subsonic.
Yep - I know it's only 25yds, but the 'glow' I got was very pleasing.
PS - Mueller 8.5-25 x 50 glass (set on 22X), helped a lot
My Anschutz and I shot very well at the local indoor range.
10 scoring targets - 100 with 9 centre bulls.
Ammo was Eley match - subsonic.
Yep - I know it's only 25yds, but the 'glow' I got was very pleasing.
PS - Mueller 8.5-25 x 50 glass (set on 22X), helped a lot
