Questions Posed:Something has been bugging me about brass, virgin brass, either processed, or out of the box, versus once fired!
First of all, Butterbean , made mention of it in his thread, MY FIRST TIME, but I want to explore other people's thoughts, and experiences , with accuracy, from virgin brass, versus once fired.
I have had two rifles, in different calibers, that would , with virgin brass, shoot better groups, hands down, then it would with any combination of resizing, or lack of. Full length, partial, neck sized, didn't matter. It shot ok, but no where's near what the virgin did.
Secondly, do you shoot the whole box, or do do take out and shoot through a batch, then start over.
Thoughts and experiences appreciated!
Be safe All!
1) Are you annealing your virgin or once fired cases?
2) Are you using a body die and competition shell holder set in order to determine your correct shoulder bump ?
3) Are you FL resizing your brass using a Match Grade Die with the correct bushing inserted in order to obtain optimum neck tension?
4) Are you indicating your bullets TIR ( total indicated runout ) with a concentricity gage in order to determine just how much runout
Less expensive die sets often exhibit more inherent run out than a quality set of reloading dies.
Stacked tolerance issiues between worn shell holders/plates and reloading dies themselves can also be a prime contributor. ( to that end I rotate my shell holders as they are the least expensive items to replace)
In that light how long has it been since your dies have been broke down and cleaned?
There certainly can be more that is preventing you from from finding your sweet spot , but here at least is a good place to start!
If you have indicated negatively to any of these questions please re evaluate your reloading procedures.
I am a big proponent of the Satter Lee ladder Test, also a modified version of the O.CW. tests
You may find these will certainly help with your load development !
My wingman is always my faithful V3 Magnetospeed Chronograph.
Hope this helps