Yeah! But the 30's hit harder.
Sure...with a price in recoil. That they may "hit harder", to the extent we can quantify that,is because its bullets are heavier. That makes sense.
But cranking those equivalent 30 caliber bullets up to the same speeds as the equivalent 7mm(to get the same flight characteristics for sure hits in open country),and we find we need a bigger case holding substantially more powder.
Take a simple example of the 300 Weatherby. It takes 83-87 gr of H1000 or 7828(two good powders for the 300 Weatherby) to move a 200 gr partition or AB at over 3000 fps from a 26" barrel.
OTOH, the Mashburn starts a 175 gr Partition at 3050-3100 fps with 73-74 gr of H1000 (similar BC's and velocity).
No doubt the 300 will boot you more in an 8.5 pound rifle.
A buddy took his Mashburn to Wyoming for two seasons, killed a couple of big mule deer with the 175 Partition. He said it killed like his 300 Weatherby. I told him compare a 180 gr 30 caliber bullet at 3200 fps,to a 175 gr 7mm started at 3100 fps. That tells you part of the story.
Even Elmer Keith noticed it back in the 30's with the DuBiel 7mm magnum with 180 WT&C bullet vs the 300 H&H.....
In case we have't noticed, heavy 7mm bullets nudge squarely into the middle range of 30 caliber bullets. No wonder they kill convincingly. The rash of new 7mm is ample evidence that lots of people notice this.
Page noticed this 60 years ago.
