Hi. I run and load a 7mm Rem Mag (Tikka 595 totally stock standard s/s barrel and very shitty plastic stock) and support the views that the highest velocity is not necessarily the most accurate and that the most important consideration is to get the speed as consistent between shots as possible.
I have managed to get this rifle to shoot 1" groups at 200m with a 160gn projectile at an average velocity of 2762fps which for the 7mmRemMag is quite low as you know. I must say however that the only way I could get this particular rifle to shoot at this grouping was to individually ream out the case necks of my Norma brass and friction fit the projectiles to the correct depth. This means I have to load each round individually. If I put 3 pills in the magazine then the recoil resets the projectile. I don't use this as a long range hunting rifle as most of my hunting is <100m so it is just a bit of an experiment on my range at home to see how well I can get a Tikka shooting versus my mates rather expensive Sako 7mm Rem Mag that he paid 3 times the price for :-) Over the 40 years I have reloaded ammo I have personally come to the conclusion that crimping is a quick way to upset consistent velocity. I now only crimp for my tubular magazines as most of my hunting is close up and a fast 2nd shot is always on the offering but in reality with the .444 Marlin I have never had to use a 2nd shot LOL
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