I am a recent entrant into the world of reloading. I have done mostly pistols, but have also tried my hand at rifle cartridges - 25-06 mainly.
I have an old Mouser Sporter I received from my father-in-law that I have been reloading for.
Here is my issue - I have reloaded around 100 rounds, and when I was at the range the other week, the first 15 of 20 I tried didn't fire! The primer was dimpled, but the round did not go off. A few of them fired after trying a second time, but for the most part the rounds simply didn't fire.
I checked the firing pin and it is clean and properly lubricated.
I then tried factory loads, and every one fired.
I talked with a gunsmith at a range I frequent and he said I may have resized the shoulder just enough that the round "moves" in the breach preventing the firing pin to strike with enough force to set the primer off.
Has anyone else ever heard of this? If so, is the brass so much junk now? Do I simply pull the bullet, powder, and primers and scrap the rounds I have loaded?
I haven't found anyone who has ever had this issue, so I have no idea what to do at this point.
Thanks for your help.