Good Article About This
The one perhaps significant difference is in long range accuracy due to the impressive BC of the 7mm wsm. For this reason, benchresters have been lauding the virtues of the 7mm wsm; its ability to cope with wind give it a notable advantage over the .270 wsm, from what I have read. Hunters don't typically need that kind of consistent accuracy, but why not have at your disposal every advantage if it is available to you? Someone above mentioned that of the three wsms, the 7mm is the best of the bunch. Accuracy wise, this seems to be the case, and since shot placement is more important in hunting than energy, the hunter seeking to obtain the best cartridge for deer, elk and moose may actually be at a slight advantage if he/she was to go with the 7mm wsm vs. the .270 wsm or .300wsm. Is the advantage a significant advantage? No. Is there a slight advantage if shot placement is more important than energy? Yes, because the 7mm wsm's ballistics at long range are slightly better than the .270wsm and better than all but the quite heavy .300 wsms (e.g., 210 grains). Hunters don't always choose a cartridge just because it is ballistically the best. Availability of factory loads certainly affects choices. Hunting where encounters with Grizzlies are likely may mean someone will opt for the heavier choices available in the .300 wsm. But if a choice is being made chiefly on an accuracy basis, with energy being the next important issue, the 7mm wsm would typically win out over the .270, the .270 wsm, the 7mm rem mag, the .300 win mag, and the .300 wsm. See 6mmbr.com and read the article "7mm Cartridge Guide."
|