SKU: BW1000004
MPN: 00100-0004
The Accurate Mag long action rifle magazine in .300 Winchester Magnum is a 5-round, single-stack feed magazine built for precision bolt-action rifles running the Accuracy International chassis pattern. It's aimed at long-range hunters, precision rifle competitors, and anyone running a chassis-fed magnum that demands consistent presentation from the first round to the last. Machined from hardened, heat-treated steel and finished in black Teflon, this magazine is made entirely in the USA. If you shoot a chassis rifle chambered in a belted magnum, this is the feed setup it was designed around. Browse our full lineup of rifle magazines for matching options.
Construction is hardened, heat-treated steel with a Teflon coating that gives the magazine its black finish and reduces friction against the follower and spring. The single-stack, single-feed layout positions each round directly under the bolt face, which is the configuration precision shooters favor for repeatable feeding with long belted cartridges. Overall length runs 3.775 inches, matching the dimension that corresponds to part number 00100-0004 across authoritative sources. Beyond .300 Winchester Magnum, the body accommodates .338 Winchester Magnum and 7mm Remington Magnum, and with feed lip adjustment it can run 280 Ackley Improved, 26 and 28 Nosler, and 375 Ruger. The design meets military-grade specifications and follows current service magazine standards.
Drop this magazine into any rifle cut for the Accuracy International long action footprint and you have a magnum feed source ready for the field or the firing line. It suits the hunter loading heavy .300 Win Mag bullets for elk-distance shots and the competitor who needs a magazine that loads cleanly under a time stress. Pair it with our .338 Lapua version if you run more than one chassis caliber, or check the Savage 110 magnum option for compatible rifles. Made in America, built to last.
It fits any bolt-action rifle cut for the Accuracy International long action pattern. That includes chassis systems and detachable-magazine rifles built to accept long action magnum magazines. The single-stack, single-feed body is designed around belted magnum cartridges in this footprint.
Out of the box it also accommodates .338 Winchester Magnum and 7mm Remington Magnum. With feed lip adjustment, it can run 280 Ackley Improved, 26 and 28 Nosler, and 375 Ruger, since those cartridges share a compatible base and overall length.
This magazine holds 5 rounds of .300 Winchester Magnum. The single-stack, single-feed layout positions each cartridge directly under the bolt face for consistent presentation, which is the configuration most precision shooters prefer for long belted magnums.
It is machined from hardened, heat-treated steel and finished with a black Teflon coating. The Teflon reduces friction inside the body and resists corrosion. The whole magazine is made in the USA and built to military-grade specifications.
The magazine measures 3.775 inches in length, which is the dimension that corresponds to part number 00100-0004 across authoritative sources. This length matches the standard long action magnum footprint for the Accuracy International chassis pattern.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Black Tides DBA Alpine Sales CO/Accurate Mags
Black Tides DBA Alpine Sales CO/Accurate Mags
Black Tides DBA Alpine Sales CO/Accurate Mags
Black Tides DBA Alpine Sales CO/Accurate Mags
Black Tides DBA Alpine Sales CO/Accurate Mags