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0.243 62mm also 6×62mmR, based on 9.3×62mm case. 6mm Lee Navy: 1895 US 0 R 6×60mmSR 2560 1629 0.236 60mm Service cartridge of the United States Navy and Marine Corps from 1895 6 mm PPC: 1975 US R 6.17×38.5mm 3212 [9] 1660 [8] 1.034 31.7 [9] 0.243 [10] 0.376 [11] 38.5mm Benchrest cartridge - "the most accurate round ever developed."
The .243 Winchester has also been found to shoot flatter and more accurately than the 7mm-08 Remington out to 500 yards, with less recoil yet also less terminal energy. [11] (Left to right) .223 Rem, .243 Win, .308 Win. The recoil has been measured to be so light that it "can be shot by anyone that can handle a rifle."
The .243 Winchester Super Short Magnum or .243 WSSM is a rifle cartridge introduced in 2003. It uses a .300 WSM ( Winchester Short Magnum ) case shortened and necked down to accept a .243in/6mm diameter bullet, and is a high velocity round based on ballistics design philosophies that are intended to produce a high level of efficiency. [ 2 ]
H335 was surplus Olin WC844 [11] for full-charge loads in the .223 Remington and .308 Winchester. [14] H380 was Olin WC852 [11] for full-charge loads in the .30-06 Springfield. [14] H414 was introduced in 1967 [1] for full-charge loads in the .270 Winchester and .30-06 Springfield [14] H450 was for large capacity and magnum rifle cartridges. [14]
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]
270 Winchester necked down to a .243 bullet with the angle increased to 35 degrees - The 270 Winchester is a standardized cartridge of the same design as the 30-06 except the case is 1.2mm longer and necked down to the .270 caliber. Therefore, the 243 Catbird is a 6mm-06 with a 35 degree shoulder and a 1.2mm longer case. [10]
Serve with whole-grain crackers and cut-up vegetables or use as a spread for sandwiches or sauce for pasta. View Recipe. Candy Cane Beet & Goat Cheese Board. Ali Redmond.
However, the lightweight .243 WSSM 55gr Ballistic Silvertip now outpaces Weatherby's offerings according to some. [5] Loading data from Western Powders puts the .240 Wby. Mag. at over 4,000 ft/s (1,200 m/s) with a 62 grain Barnes bullet.