I really think the main issue here is a gummed up firing pin
Derplyvset primers , hard cups and anvils and anything else is overthinking tge issue in a newer gun for the most part .
I have taken down your different titles this year alone that were gummed up from oil inside the bolt bodies and they worked fine after .
Some were using factory ammo and some were hand loads but the culprit in every instance was oil or grease in the bolt body .
In fact I can't remember over the years an instance in cold weather where excess lube in the bolt/ trigger area was not the problem except in a couple where the rifle iced up - new or old rifles .
Cat
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Anytime I figure I've got this long range thing figured out, I just strap into the sling and irons and remind myself that I don't!
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