I have to concur with the above. I may have commented on this old tired thread some time ago, but not going to go thru 27 pages to see.
Fact is, this is another silly attempt to try to make something look better than something else that it is not equal to.
I just for giggles took an empty case of both calibers and I am well familiar with both. In this pic shown on the left is the 9.3x62 loaded to the gills with IMR 4350 and it tops out at 68.5 grs, tapped in.
Next to it is the .375 with the same amount and type of powder, you can almost see it down there over a half inch down. That should be enuf to settle this, but probably isn't.
The .375 case filled to the top with the same powder weighed in at 89.7 grains for a 21.2 gr difference which is considerable. Boiler room is the deciding factor in these goody comparisons.
Run the .375 to its top end and you will get over 2650 fps with a 300 gr bullet, look at a Barnes manual and find even higher speeds. The grand old 9.3 wont do that, ( within the same pressures ) nor btw will the .35 Whelen, sorry Bob.
Its like trying to say the .308 win is as powerful as the .30-06. It only is if you super charge one, and handicap the other.
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