something to check crimp?
+9
fc60
Gary Wells
LenV
Aprilian
Ed Hall
farmboy
Wobbley
Multiracer
orpheoet
13 posters
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something to check crimp?
First topic message reminder :
I recall seeing somebody post a pic of a metal plate with holes from 0.466-0.470 for checking crimp. Is that something that can be bought somewhere? I have a hard time getting accurate measurements with dial calipers.
I recall seeing somebody post a pic of a metal plate with holes from 0.466-0.470 for checking crimp. Is that something that can be bought somewhere? I have a hard time getting accurate measurements with dial calipers.
orpheoet- Posts : 1054
Join date : 2014-07-29
Age : 56
Location : Berea, Oh
Re: something to check crimp?
I swear that when I was buying precision hand inspection tools & instruments the brand name "Mauser" was made in Germany and were of exceptional quality & integrity. That time frame goes back into the early '80'sJack H wrote:My Starrett and Mauser dial calipers both zero perfectly, and also read perfectly on my 1" Starrett standard. The cheap digital has a zero button, but then measures the 1" std as .999
Gary Wells- Posts : 370
Join date : 2015-09-07
Re: something to check crimp?
Mauser made precision vernier calipers for many years after WW2.
Wobbley- Admin
- Posts : 4815
Join date : 2015-02-13
Re: something to check crimp?
Mauser could not make firearms after WW2 so they made instruments like the calipers. I do not know how my Mauser dial caliper came to be made in France. Later production maybe. Anyway it is every bit as good as the Starrett
Jack H- Posts : 2703
Join date : 2011-06-10
Age : 75
Location : Oregon
Re: something to check crimp?
Your best option is blade mike's if using a micrometer.
The blades stay in a fixed position.
As suggested, lock them in a fixed dimension. Preferably on a precision measured item like jo blocks or Gage pin.
Then slide the crimped cartridge against the micrometer blades.
Or do the same with calipers. As long as the reference is accurate, a c clamp will do.
The blades stay in a fixed position.
As suggested, lock them in a fixed dimension. Preferably on a precision measured item like jo blocks or Gage pin.
Then slide the crimped cartridge against the micrometer blades.
Or do the same with calipers. As long as the reference is accurate, a c clamp will do.
james r chapman- Admin
- Posts : 6381
Join date : 2012-01-31
Age : 75
Location : HELL, Michigan
Re: something to check crimp?
My experience with digital caliper is that they are poor till you get into the. $100 range..just not consistent. Cheaper dials are better but.... you are much better off buying a used quality tool.
Just me but use whatever method you want to measure crimp but be consistent
Just me but use whatever method you want to measure crimp but be consistent
jglenn21- Posts : 2621
Join date : 2015-04-07
Age : 76
Location : monroe , ga
Re: something to check crimp?
I agree, but, if set to a qualified reference and locked anything rigid will work
james r chapman- Admin
- Posts : 6381
Join date : 2012-01-31
Age : 75
Location : HELL, Michigan
Re: something to check crimp?
True
I will say for the average person a micrometer is much easier to get accurate readings and even cheap ones are pretty accurate within a 1"range
I will say for the average person a micrometer is much easier to get accurate readings and even cheap ones are pretty accurate within a 1"range
jglenn21- Posts : 2621
Join date : 2015-04-07
Age : 76
Location : monroe , ga
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