THE HEADSPACE
I'm trying to determinate the headspace with rcbs mic and i'm finding some difficulties.
1.- I choose some cases getting from NORMA DIAMOND LINE HPBT 168 grains after shooting with my sako trg22 .308 rifle and I measure the level,or the value) with the headspace nut.
The result that I obtain is -0,002.Because of the "dimension A" is 1,6300 / 1,6400, I think then that the obtain result means that my headspace is 1,6280. But this data is lower than the SAAMI / CIP measure. How it is possible?
2.- I choose some cartridges of NORMA DIAMOND LINE HPBT 168 grains and I measure its headspace, I obtain the level,or the value) -0,002. Is that possible? From the two previous facts I can deduce that my headspace is exctly the same as the ammunition measure before I shoot. I can not understand this.
FINDING
THE BEST BULLET SEATING DEPTH
====================================
I insert the freebore tool in the chamber and the value that I obtain is 0,32. But, What kind of unity is this? I suposse to understand that it is 0,32 + 1,6300 connecting to "dimension A" or not? If I measure with a caliper is 2,18 inch. Do you think that it is right? The OAL that I obtain is 2,850 inch, do you think is also correct or not?
thanks a lot
I'm trying to determinate the headspace with rcbs mic and i'm finding some difficulties.
1.- I choose some cases getting from NORMA DIAMOND LINE HPBT 168 grains after shooting with my sako trg22 .308 rifle and I measure the level,or the value) with the headspace nut.
The result that I obtain is -0,002.Because of the "dimension A" is 1,6300 / 1,6400, I think then that the obtain result means that my headspace is 1,6280. But this data is lower than the SAAMI / CIP measure. How it is possible?
2.- I choose some cartridges of NORMA DIAMOND LINE HPBT 168 grains and I measure its headspace, I obtain the level,or the value) -0,002. Is that possible? From the two previous facts I can deduce that my headspace is exctly the same as the ammunition measure before I shoot. I can not understand this.
FINDING
THE BEST BULLET SEATING DEPTH
====================================
I insert the freebore tool in the chamber and the value that I obtain is 0,32. But, What kind of unity is this? I suposse to understand that it is 0,32 + 1,6300 connecting to "dimension A" or not? If I measure with a caliper is 2,18 inch. Do you think that it is right? The OAL that I obtain is 2,850 inch, do you think is also correct or not?
thanks a lot
