Hey Tom:
Thanks for that warning. I was shooting from a clean concrete bench, this was the only round in the rifle, but I knew something wasn't right at the shot because of the aroma, but never found a bit of the primer case. I removed the bolt and gave the face a wipe down and a good look, opened the magazine door and shook everything. I saw no primer shards anywhere, but maybe I just missed it.
This is nearly a century old gun (a Win 70 carbine, so I definitely don't want to break off the bolt handle!). But all the 100 yd shots were touching until this primer failure, which moved POI 2 inches lower.
