Having neck sized only all my life I now find that case specification reading leaves me wanting as it applies to full length sizing. within the many manuals all the specs are absolute and devoid of tolerances. 45-70 case length reads 2.105 on the spec sheet. Is this the max? What would be the minimum? if it is max, hitting a spec to .001 every time may not be realistic in my trim production unless I spend much time and expect wastage, so I would like to shoot a couple grand lower to allow some breathing room. What sort of tolerance do reloaders generally apply to trim length and does it apply to all calibers? I ask about "all calibers" as 45-70 for sure is a forgiving caliber and not atypical. Thank you kindly for sharing your experience.