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Did you uniform the necks prior to measuring the thickness? I measured the neck thickness of the 50 pieces of 300 PRC RCC brass. I was able to make one sometimes two measurements around the neck of each piece of brass. The issue I encountered was a slight bow in the neck. The flat of the...

@DDRH65CM The dimensions of the RCC brass I received matched (AFAICT) the diagram they sent for me to approve. The base OD of the RCC was ~0.532" and shoulder OD ~0.519". One Hornady unfired brass measured ~0.528" and ~0.513". And a once fired Hornady case measured ~0.529" and ~0.515". I didn't...

FWIW, the RCC brass (SAAMI 300 PRC spec) I received went about halfway into my 300 PRC barrel until I body sized it. Now I believe (barrel is not matted to an action ATM) it'll chamber completely and snugly. My barrel was reamed with a Hornady spec'ed reamer. Does anyone know if the SAAMI 300...

Did you pick a sacrificial case after weighing and measuring neck thickness? If so, do you still have those measurements of that case? I weighed all 50 of my RCC cases. I have yet to measure neck thickness. Weight is in grains. FX120i calibrated with 100 gram weight. SN Case weight 001...

Has anyone plunged for a Krieger Savage pre-fit? I did. My factory Savage barrel nut's skirt has an ID of ~1.071". This Krieger barrel's OD just in front of the threaded portion is ~1.076". I contacted Krieger about the situation. They said they based their Savage pre-fits on the "standard...