250 savage headspace gauge
- Thread starter Randy B
- Start date
Headspace is a rifle manufacturing tolerance. There is no one dimension. Cartridge dimensions can be had here. http://stevespages.com/jpg/cd2503000savage.jpg
You wanting the headspace guages or a reamer? Brownell's has the Go guage, but are currently out of stock for the No-Go. $25US each.
They have finishing reamers too. Not cheap though. $89.80US each.
You wanting the headspace guages or a reamer? Brownell's has the Go guage, but are currently out of stock for the No-Go. $25US each.
They have finishing reamers too. Not cheap though. $89.80US each.
Thanks sunray but many reamer prints will have a dimension on the print.
I know JGS does this (usually on the shoulder angle at the .375 dia position)
For instance the 30-06 270-25-06 etc dimension is 1.940 I think.(running on memory here now) that is the min headspace size and 1.944 for the max size.
using these sizes not a big problem to manufacture a gauge. I can do the job just need to find the size!! Randy
I know JGS does this (usually on the shoulder angle at the .375 dia position)
For instance the 30-06 270-25-06 etc dimension is 1.940 I think.(running on memory here now) that is the min headspace size and 1.944 for the max size.
using these sizes not a big problem to manufacture a gauge. I can do the job just need to find the size!! Randy
I just drew it in MasterCam
using a shoulder diameter of .414" and a shoulder to base length of 1.512" and a 26.5 degree shoulder a .375" diameter will contact the shoulder at 1.551" from the base.
These dimensions may not be exact, they are from the Nosler reloading manual.
If you get the exact dimensions from a reamer maker I can can redraw it.
using a shoulder diameter of .414" and a shoulder to base length of 1.512" and a 26.5 degree shoulder a .375" diameter will contact the shoulder at 1.551" from the base.
These dimensions may not be exact, they are from the Nosler reloading manual.
If you get the exact dimensions from a reamer maker I can can redraw it.
Randy, I sent you a PM but that is only 1/3 the info. As Dennis asked, what is the datum diameter and angle. Extremely important to know the datum diameter and the angle must be exact. Making a guage is not as easy as you think. How are you going to get the angle exactly correct even if you know the numbers? I just made a 338 lapua guage by the reamer and guage print sheet and I had a hellofa time to get exactly 20`. Being exact made it difficult. I also made a test datum diameter hole and length guage to verify the headpace guage. I took me three times to make the hole perfectly smooth sharp and .4000".
Cheers
Cheers
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The reference point on the shoulder of the 30-06 gauge is located where it would contact a ring .375" in diameter...
Is that reference point different on the 250 savage gauge?[/QUOTE]
Thats exactly the info I'm looking for Dennis most good reamer prints have this dimension on them. I guess this old timer 250-3000 isn't being done too often anymore not too many guys with prints.
I ordered a gauge from the states tonight anyway thanks Randy
Is that reference point different on the 250 savage gauge?[/QUOTE]
Thats exactly the info I'm looking for Dennis most good reamer prints have this dimension on them. I guess this old timer 250-3000 isn't being done too often anymore not too many guys with prints.
I ordered a gauge from the states tonight anyway thanks Randy
