Cartridges such as the .300 Remington Ultra Magnum
, the .30 Nosier, and the .30-378 Weatherby have pushed the envelope further in terms of velocity.
(It is actually based on the 8mm Remington Magnum case necked down.) In 2000, Remington trumped themselves again by rounding out their full-length Ultra Magnum line with the 7mm Remington Ultra Magnum
Some wildcats gain a firm foothold and others don't, but the .375 Dakota and the .400 Tembo can look to the .404 Jeffery as their parent case, as can a plethora of today's short magnums --the Remington Ultra Magnum
cartridge family, the Winchester Short Magnums, the Remington Short Action Ultra Magnums and the Winchester Super Short Magnum variants, all of which have been commercially successful.
Rick told me about his experiment and of course I had to try it myself, also with a 700 in .30-06, filling the magazine with a .300 Remington Ultra Magnum
, a .300 WSM and a .30-40 Krag.
The AWR is currently offered in six chamberings from .270 Winchester to .338 Remington Ultra Magnum
. We chose .270 Winchester for the test rifle, which provided a magazine capacity of four rounds and a barrel length of 24 inches.
It comes chambered in .25-'06, .30-'06 (one of my favorites), 7mm Remington Magnum, .300 Winchester Magnum and .300 Remington Ultra Magnum
. Each rifle weighs 9 pounds, so they might not be the best choice if we plan on climbing up a mountain.
When we first started hunting together he favored the .300 Remington Ultra Magnum
, though in recent years he's often hunted with magnums that don't kick quite as hard, such as the .300 and .325 WSMs.
Although a number of other offerings have come on the market over the years--the .375 Dakota, the .375 Remington Ultra Magnum
, the .375 A-Square, and the .375 Weatherby Magnum, (the forerunner of the .378 Weatherby Magnum) the .375 H&H Magnum still offers sterling performance, with Taylor Knock-Out values ranging from the upper 30s to the lower 40s, and a proven track record of taking care of business.
But many super-sleek bullets won't fit right in the magazine of a .338 Winchester, and the 300 grainers can't be started at more than 2,500 fps; the reason long-range hunters who use a .33 go with bigger rounds, especially the .338 Remington Ultra Magnum
or .338 Lapua.
The .300 Remington Ultra Magnum
is a little bigger, hence it's capable of a little more velocity; friends at Weatherby tell me that Roy's .300 isn't even the best-selling .30 chambering in their line anymore, coming in behind the .30-.378.
This is one reason many hunters who want "big .33" performance use the .340 Weatherby or .338 Remington Ultra Magnum
instead, since their rims are the standard .532" to .535" of classic belted magnums.
Features include a 24" hammer-forged barrel (26" barrels on 7mm, .300 and .338 Remington Ultra Magnums
), receiver drilled and tapped for scope mounts, hinged floorplate, sling swivel studs and the patented SuperCell Recoil Pad.