For midsized big game, few rifles have all the qualities offered by .257 Weatherby Magnum. Find out why it was Roy Weatherby's all-time favorite.
gundigest.com
Designed in 1944
The cartridge really shines when and where shooting at game over long distances is required.
It is ideal for small to medium-sized deer, pronghorn, and other small ungulates. I have also used mine when hunting predators like coyotes, bobcats, and fox, though because the barrel heats up extremely quickly it is not a good choice where high-volume shooting is taking place.
In fact, care must be taken at the range to allow the barrel to sufficiently cool between groups or you’ll find that accuracy will suffer, and barrel life will be shortened. When going to the range I always bring a jug of ice water and a towel, and use it to cool the barrel after every 5-shot group. I also clean the barrel after every 10 shots.
7mm Remington Magnum bullet selection and performance on game
www.ballisticstudies.com
Unfortunately, the current trend towards light weight barrels does not help minimize recoil of the 7mm RM or any of the magnums. Factory rifles are available with either No.2 contour barrels (light sporter) or No.5 Contour (Varmint) as can be found on the Remington Sendero. No.3 and 4 contour medium weight barrels are found only on Sako rifles or through custom barrel makers. Barrel length is also a concern, several manufacturers continue to produce 24” barreled magnums while the optimum barrel length is 26”. Longer barrels (28 - 32”) can display even higher velocities but some portability is lost at these lengths.