Hi all. I have little problem. I have Tikka M65 Deluxe varmint rifle, barrel is 620mm long, caliber is 7mm Rem Mag. Now, i use Sako/Norma Cases, Sierra Match-King 168gr bullet and Vihtavuori N165 powder, load is 64.5 gr. Now, if i load more than 64.5 gr, cases will "blow" i mean that primer is falling off if i try reload it. Couple of my fellow hunters uses bigger loads, such as 70,7 gr, and case is all right after shooting.
Whats wrong with my rifle?
Thanks for any reply, Jimmy.