I am considering a long action for my new rifle which I hope to be my “do it all” hunting rifle. I have heard Jim likes the 7mm but he also likes the 6.5PRC which is ballistically very similar (at ethical hunting distances) to 270 Win. I would like to obtain this forum’s thought on 7mm REM mag vs 270 Win.
They are more similar than different. Doubt you’re going to notice a huge difference
The 270 sweet spot is typically between 130 and 150 grain bullets. The seven Magnum is shooting slightly larger diameter bullets and it’s sweet spot is typically 150 to 165 grains. The 7 mag will push the 150s 100 to 200 ft per second faster than the 270 pushes its 150 . Therefore 7 RM will give you a little more punch for larger animals as well as slightly better longer range performance. And of course there’s a downside, it will recoil a little more
But they both are well proven performers
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Can’t go wrong with those two choices for hunting everything up to elk size. My preference is more power with 7mm Mag. I have .22 cal up to .375 cal and typically reach for .30 cal. so I am biased a bit. If you are cost conscious, the 7 Mag will be more expensive to shoot alot vs .270 factory ammo.
Another thing to consider is the 270 is very similar to the 6.5 PRC.
I love the 270, Just wish it would come in a faster twist rate that isn’t outdated. Another one to look at is the 7mm-08. It will be about 100 FPS faster than a 6.5 CM with a 150 gr.
Really… the thing to consider is how much “more” of a internal wound channel are you going to get with 1/2 a mm more (6.5 vs. 7mm). I honestly belive its more about the bullet design.
Sad thing is most firearms manufacturers are not gonna update the twists and throats. Then there would be no reason for the 6.8 the 7prc and so on. But browning X bolt speed does!
I know the X Bolt comes with fast twists, but did they also alter the throat in the chamber?
What would be ideal, “new & improved” twist rate for the 270 for it be viable with the newer, higher BC bullets?
The 6.8 Western uses either 8 or 7.5 twist. So either of those should work with the bullets that are out there now. One of the big things with this however is that the bullet manufacturers never really got on board with this and therefore they don’t have a lot of options for higher BC 0.277 caliber bullets. There’s always a chance that if someone really started to look at making those, say like Hornady, that they would find that another twist rate would actually be needed if they came up with a high BC eldx