Thread: 7x57

OK so have loaded up a few rounds and went to give the rifle a go for the first time.
New barrel new chamber and has been sent and pasted proof in Birmingham.
New Norma brass.
Remington large rifle primes.
Neck sized.
Pill size Hornady match 162gr.
22.40 grains of Trail boss to fire form the new cases.
Fire the first five rounds and hard to extract the cases after firing.
No signs of pressure around the primer nor are there any bulges on the cases.
No signs of powder burn around the neck area.
Only sign is a double grip ring on the necks.




So where have I gone wrong?
Cheers