I have an old box of handloads that were custom loaded for one of my rifles. They shoot the tightest groups I've ever shot. The previous owner of the rifle is no longer among us. I want to duplicate them.
The notes on the box tell me what bullet and powder they are, and how much of each. The brass is easily identified by headstamp.
Is there any way to tell what primer is in them? They're doubtless large rifle primers (it's an 8x57 JS), and silvery colored. But beyond that, do I just need to buy a box of each brand and shoot for group (the load is a couple of grains down from max, so I feel fairly safe doing that), or can I visually identify them somehow? Or, since the manufacturer of these primers is a couple of decades' worth of lots past the lot in question, do I just need to try new primers anyway?
The notes on the box tell me what bullet and powder they are, and how much of each. The brass is easily identified by headstamp.
Is there any way to tell what primer is in them? They're doubtless large rifle primers (it's an 8x57 JS), and silvery colored. But beyond that, do I just need to buy a box of each brand and shoot for group (the load is a couple of grains down from max, so I feel fairly safe doing that), or can I visually identify them somehow? Or, since the manufacturer of these primers is a couple of decades' worth of lots past the lot in question, do I just need to try new primers anyway?
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