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Nosler plans to use a 1:8.5" (216 mm) twist barrel for their M48 rifles chambered in .27 Nosler. Nosler will be offering their complete line of M48 rifles in the .27 Nosler chambering. Initial factory loads will include the 9.7 g (150 gr) AccuBond and the 10.7 g (165 gr) AccuBond Long Range (ABLR) bullets.
Manufacturers offer a 140 gr (9.1 g) bullet at 3,030 ft/s (920 m/s). This ammunition has a maximum point blank range of 300 yd (270 m) when sighted in at 250 yd (230 m). Some ammunition offers premium 140 gr (9.1 g) Nosler Partition and 125 gr (8.1 g) Accubond bullets driven at 3,100 ft/s (940 m/s) and 3,250 ft/s (990 m/s) through a 24-inch ...
These Nosler Partition bullets used a specially designed jacket enclosing two separate lead alloy cores. [1] The front core was open on the nose to expand easily, but expansion would stop at the partition (which was a solid layer of copper extending right across the bullet, not just the thin shell of copper which composed the jacket).
The .257 Weatherby Magnum is capable of firing a 115 gr (7.5 g) Nosler Ballistic Tip bullet at 3,400 ft/s (1,036 m/s) generating 2,952 ft⋅lbf (4,002 J) of energy [3] which is comparable to factory loadings of the .30-06 Springfield and the .35 Whelen in terms of energy.
An overview of 7mm caliber cartridges, their history, and uses in firearms.
Winchester claims a muzzle velocity (MV) of 3,225 ft/s with a 140 grain bullet for their 7mm WSM cartridge; the claimed muzzle energy (ME) is 3,233 ft. lbs. With a 160 grain bullet the Winchester figures are 2990 ft/s and 3176 ft. lbs. at the muzzle. The lighter, shorter 7mm bullets are preferred in these short case magnums. [2]
Bullets in the 110- to 120-grain range are suitable for small game and varmints (handloads with 110s can nearly achieve 3000 ft/s); 120- to 154-grain range for deer; and 154 to 168 gr range are adequate for larger game at closer ranges. [13] "The 7-30 Waters has proven its capabilities in the field on big game weighing up to 300 pounds at woods ...
The heaviest commercially loaded ammo available for the 7mm is 195 grains, [6] while the .30-06 Springfield can be loaded with bullets up to 220 grains, but for a .308 caliber to equal the flat trajectory and penetration of a .284 diameter 180-grain bullet with a muzzle velocity of 2,860 ft/sec (870 m/s), as offered for the 7mm Remington Magnum ...