Re: Whats wrong with the good ole 7mm?
Since I already own a 7x57 rifle, the 7mm Rem Mag will be the Mag I buy if I ever buy one.....because I get free brass. I also have stock of bullets for the 7x57 which can be used in 7mm Rem Mag.
Unlike the 7x57, where you almost never find brass because that is a reloader's dream owned by guys who know what they are doing, the 7mm Rem Mag is owned by some guys who buy ammo, blow it off at the range, and leave their brass.
If you choose a .308 Win, .30-06, 7mm Rem Mag, 7.62x39, .223 Rem, .270 Win or .22-250 Rem, then if you live around here you will be picking up lots of brass.
I picked up some 7mm Rem the other day, along with even more .308 Win, and before that 150 .223 Rem brass. I have picked up well over 1000 .223 Rem this past summer, freshly fired. My brother-in-law will never lack for .22-250 or .30-06 brass as well. I probably have 5000 .223 Rem brass, more than I can ever shoot.....but it trades when cleaned and resized.
10% of shoters own 90% of the rifles. The newer cartridges are mainly to keep new product in production at factories. A lot of the new cartridges will flop in the marketplace. 7mm-08 is here to stay, as it duplicates the 7x57 ballistics.
Standard cartridges work better at standard distances, as premium bullets are not necessary. I'll only step up to a Mag if I need extra range. Ballistic reticles and laser rangefinders have largely reduced the need for a flat shooting magnum. In 7mm Rem Mag, the longer and heavier action helps reduce recoil. You need a long barrel anyway for full speed capability, so the new short action mags aren't as useful as they are advertised to be.
Many experienced shooters I meet have quit reading about the latest and greatest new cartridges and rifles the gun mags keep pushing. Optics and rangefinders are areas where real gains have been made lately. The newer 7mm-08 is ALMOST as good as the old 7x57 that was invented in the late 19th century.