Ritchie
Member
Rifle primers in 10mm Auto
XDM-10 4.5" barrel Starline nickel cases.
Winchester primer was tried but would not seat anywhere near flush, it
stood up well above the case head. CCI #34 primers seated slightly below flush.
Shooting Chrony at 15 feet from gun. Temp 56* F. 180gr.plated Berry's bullet,
5.5 gr. HP-38
CCI 300
Low 936
High 978
Average 955
Ex spread 42
Std. dev. 15
CCI #34
Low 978
High 1017
Average 996
Ex spread 39
Std. Dev 12
I noticed right away that the #34 primed loads had noticably more recoil.
I have no idea why the Winchester primer did not seat lower, may look
into it later.
XDM-10 4.5" barrel Starline nickel cases.
Winchester primer was tried but would not seat anywhere near flush, it
stood up well above the case head. CCI #34 primers seated slightly below flush.
Shooting Chrony at 15 feet from gun. Temp 56* F. 180gr.plated Berry's bullet,
5.5 gr. HP-38
CCI 300
Low 936
High 978
Average 955
Ex spread 42
Std. dev. 15
CCI #34
Low 978
High 1017
Average 996
Ex spread 39
Std. Dev 12
I noticed right away that the #34 primed loads had noticably more recoil.
I have no idea why the Winchester primer did not seat lower, may look
into it later.