I agree with focusing on safe loads first, just trying to help with the original problem when you do get back to reloading for it.
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I am going to have to take some time to soak this all in. You guys are scaring me to death. Have loaded years ago for rem 700 bolt gun but new to AR. Don't even understand how gas system works exactly. Deeper I get in more confused I am.
Don't get how could be hot load at only .3 gr above min per Sierra and Hodgdon. But then I hear that I am over pressured and yet my velocities are too low. Don't doubt anything you guys trying to teach me but my head is spinning and maybe getting ready to blow my head off if over pressured.
I started on a mission to start learning how to load for long range accuracy. But I have taken us off on a tangent with pressure on my loads.
May need to just go shoot factory stuff? Guess I will learn but hope I don't lose an extremity in the process.
From a Discouraged wanna be long range shooter and loader. Wish there were someone around that I could pay to teach me if need be. Cheaper than a trip to the hospital.
Thanks guys! I won't give up. Just got to take short break to let my head stop spinning.
I did an experiment several years ago with runout. I used a Redding bushing die and sized the necks down in .001" increments. Long story short: the more you size the neck, the less concentric it gets. If you have a benchrest chamber that allows the neck to expand by only a few thousands of an inch, like .003" or less, then you will not have any concentricity issues. If you are trying to size the neck down by more than .003", you will have some runout issues.
A typical factory chamber is .007" larger at the neck than a loaded round . A typical F/L die sizes a fire-formed neck down by .017", then the expander ball opens up that neck by .008". It is amazing that rounds come out as straight as they do.
Of&b,
I really appreciate your help and caring for me to be safe! I will be out of town all weekend and will take this time to think about all this. Can I PM you if have more questions?
918v,
I agree but have had both new unfired brass from LC 13 and Lapua with exact same 1.444" of headspace. My rifle is 1.463" and after fire form move back to 1.460". What can I do about this brass? OF&B measured some of his new brass and also said his wasn't anywhere close to 1.444". He even told me couldn't be wrong measuring with my Sinclair bump gage since the same gage comes up with 1.463" time and again after firing. Wonder if this much headspace is causing my slight ejector rings?
Loading for Sierra 69 Match, Varget and CCI BR4 in new Unfired and unprimed batch of 500 Lake City 13 brass.