Trying to determine free bore using that method will provide you with information but it will be, at bes, a SWAG. If you determine CBOL at X and then subtract the case length you'll come up with a number but it isn't a number I'd suggest relying on. There are just too many variables ......... its just a factory Weatherby S2 3006.
I didn't know if there was a way to find out by using an oal gauge when measuring the jump/ lands to bolt.
I thought maybe if a measurement from lands to bolt was so and so it could be determined or case mouth to lands .
With a 150 gr in a oal. gauge , I think I still have about an 8th or 3/16 left inside the modified case when the ogive is touching.
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OK , thank you for the reply !Trying to determine free bore using that method will provide you with information but it will be, at bes, a SWAG. If you determine CBOL at X and then subtract the case length you'll come up with a number but it isn't a number I'd suggest relying on. There are just too many variables ......
Thanks Edd, so being at saami spec , does this mean a minimum demension or tight chamber ?If it is a SAAMI chamber, it has no lead.