I have recently started reloading. Last night I put my first reloads thru my .308. My first loads were taken direct from the Nosler Reloading guide No6.
The start load was 47.5g of W748 Lapua once fired then full resized brass with Federal 210m primer topped off with a 125g Nosler ballistic tip. Brass had been primer pocket uniformed chamfered and flash hole de-burred.
I fired 5 rounds with each load.
First 4 rounds ok, noticed that the primer had moved back in pocket, and was protruding from case and was maybe 5 % flatter than before firing.
5th round fired, then as I cycled the bolt to extract the spent case my bolt came back empty with the round still in chamber. My rifle has never done this before with the 500 odd rounds I have put thru it. Lifted muzzle to vertical and round dropped out
Moved up to next load which was 48.5g of W748 fired 5 rounds, All with primers moved back in case (protruding a fraction) after firing 3 of which did not extract with bolt, but as before dropped out on raising muzzle.
Ok in hindsight I now realise that I should have possibly stopped before this point but...
Next 5 rounds were loaded with 49.5g of W748. Fired 3, as before none extracted and primers protruding. 4 th round and had feeling that bolt was stiffening up on cycling, 5th round not extracted primmer protruding bolt needed a wee tug and push to cycle it.
Next 5 rounds loaded with 50.0g of w748, Fired 1 not extracted bolt stiff, called it a day.
Then had to take wife out for a meal and was crap company thinking I had just spannered my R.P.A. On returning home (3 hours after finishing shooting) bolt was cycling perfectly again. The R.P.A action and bolt has vent holes in them, they were clear and crud free.
At no point were there any signs of high presure on the brass apart from primer issues.
I recently did a reloading course, on the course we were using CCI primers, using a RCBS hand priming tool they seemed to need a healthy amount of pressure to locate them in the brass. When I used the Federal 210M primers on these rounds (using same hand priming tool) they seemed to almost slip in.
Any suggestions, comments and advice would be gratefully received.