I have a new firing pin in my T38 6.5mm rifle. I am wanting to know what the firing pin dimension is from the end of the pin tip and the bolt face when the pin is in the firing position. So, to measure it the safety knob would have to be removed to position the pin in the firing position. Can anyone out there let me know? I do not want to have a dimension issue where I puncture a primer if the tolerances are wrong. Thanks in advance.