1-a.gif - 1757 Bytes1-b-rifles-logo.gif - 1903 Bytes1-c-guide.gif - 780 Bytes
1-d.gif - 1035 Bytes300 Winchester Magnum: Reloading, Rifles, Ballistics, Hunting & Ballistics.
1-e.gif - 1496 Bytes
1-f.gif - 535 Bytes

Ballistics
Gunsmithing
Reloading
Shooting
1-i-information.gif - 1870 Bytes

300 Winchester Magnum

 The 300 Winchester Magnum centerfire rifle cartridge is a .30" caliber, belted, bottle neck cartridge case design that should not be confused with the newer 300 Winchester Short Magnum that is of a bottle neck cartridge design with no belt. This cartridge was developed by Winchester based entirely off of their own 338 Winchester Magnum cartridge by moving the shoulder area of the cartridge forward .156", lengthening the case .120" and necking it down to .308" diameter. Winchester introduced their new 300 Winchester Magnum to the public in 1963 and was instantly accepted by the rather large shooting public in North America.

 The 300 Winchester Magnum gained fame and reputation rapidly as this cartridge features a large case capacity, by which it drives bullets in the weight range of 150 grain, 165 grain and 180 grain at top speeds when compared to other .30 caliber cartridges, making it a top choice cartridge for hunters in North America. These large powder charges are ignited by the the use of .210" diameter size large rifle primers of the magnum primer type or class-c primers, which by the way supply more heat with higher pressures than standard .210" diameter class-a or class-b large rifle primers for large magnum powder charges.

 The 300 Winchester Magnum is definately a long range rifle cartridge. It is one of the few cartridges that really make the case for free boring and a longer rifle action, with heavy bullets seated deeply in the cartridge case it's full potential can not be realized by the limited case capacity of deep seated bullets in the 200 grain to 220 grain weight range. However loaded with bullets that weigh 150 grains to 180 grains plenty of performance can be extracted from the 300 Winchester Magnum cartridge case capacity.











Centerfire Rifle Caliber Ballistics - .17" - .20" - .22" - .24" - .25" - .26" - .27" - .28" - .30" - .31" - .32" - .33" - .35" - .37" - .41" - .43" - .45" - .51".
223 Rem., 243 Win., 25-06 Rem., 6.5 x 55mm, 270 Win., 7mm Rem. Mag., 30-30 Win., 308 Win., 30-06, 300 Win. Mag..
Reloading - Equipment - How To - Accuracy - Brass - Primers - Powder - Bullets - Load Testing - Run-Out.
17 Rem., 204 Ruger, 22 Hornet, 222 Rem., 223 Rem., 22-250 Rem., 220 Swift, 223 WSSM, 243 Win., 6mm Rem., 243 WSSM, 240 Wby. Mag., 250 Sav.,
257 Roberts, 25 WSSM, 25-06 Rem., 257 Wby. Mag., 6.5 x 55mm, 260 Rem., 6.5mm Rem. Mag., 264 Win. Mag., 6.8 Rem.SPC, 270 Win., 270 WSM,
270 Wby. Mag., 280 Rem., 7mm Rem. Mag., 7mm WSM, 30-30 Win., 308 Win., 30-06, 300 Win. Mag., 300 WSM, 300 Wby. Mag., 325 WSM, 340 Wby. Mag.,
357 Mag., 44 Mag., 45-70 Government.