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Ever since my introduction in 1951 or 1952 to Jerry Gebby's "Varminter," his trade-marked name for his .22-.250, his neat little cartridge has been one of my favorites for shooting varmints. I've owned several .22-.250s as well as other .224 center-fires through the years and used them on Pennsylvania and Virginia woodchucks and on prairie dogs and gophers in several western states. But I've always yearned for longer, heavier .224 bullets and slower powders that would make an even more muscular .224 varmint cartridge feasible. By the time I was knuckle-skulling the new Howell big-game cartridges, .224 bullets longer and heavier than the old 55-grain had become prominent on the market. Canister powders slower than the .22-.250's favorite propellants, very attractive for a new .224 varmint cartridge, had also become familiar choices for handloaders.
So the .220 Howell, my answer to my own long yearning, took shape around the Hornady 75-grain A-Max bullets (which, I do solemnly swear, look like they can do a hundred feet a second just sitting in a box on the shelf) and IMR-7828 powder. At that time, I had not heard or read of the Belgian powders imported by Western Powders and sold under their Ramshot label. The Ramshot powder formerly labeled Big Boy and now called Magnum appears to be as good as IMR-7828 in the .220 Howell and possibly a bit better. Alliant's Reloder 25 looks good, too, but I haven't tried it yet. And of course IMR-7828 does well in this cartridge.
The .220 Howell is my answer to my own long-time yearning for a .224 cartridge better suited than the .22-.250 or the .220 Swift for shooting varmints at long ranges on the windy northern plains, where the inevitable strong cross-winds handicap shooters as badly as the long distances that drain the velocities of the fastest bullets. Since my stroke in 2001 left me weak, wobbly, and partially paralyzed, I'm "out of it" as far as hunting big game is concerned. So I'm more than ever a varmint-shooter, and the .220 Howell � my long-time dream cartridge � has naturally become my favorite. By all field results so far, it does all that I had in mind for it to do when I designed it. More, even � although I didn't design it for use on anything bigger than a coyote and don't recommend it as a big-game cartridge, a number of hunters report great success with it on deer, antelope, and even elk. I still think that's stretching its capability, but their enthusiastic reports of success are certainly gratifying testimony to the power of the cartridge.
The deservedly famous and excellent .220 Swift is a good bit less roomy than my .220. Its gross case capacity (full to the mouth) is about 47 grains of water. My .220's gross case capacity is about 62 grains of water. The additional space in my .220 allows this cartridge to be loaded with a heavier bullet and a caseful of a slower powder, for a much more efficient long-range trajectory than the Swift can provide with its usually lighter bullets � and its lower peak chamber pressures make it easier on barrels.
Loads that propel the 75-grain Hornady A-Max at about 3,450 to 3,650 ft/sec from the .220 Howell start slower than the Swift's 50-grain factory load (about 3,850 ft/sec), but the much better ballistic coefficient of the 75-grain A-Max enables it to retain more of its velocity longer. The heavier bullet from the .220 Howell and the lighter one (also a Hornady) from the Swift slow to the same down-range velocity at or within 200 yards. Beyond that cross-over distance, the heavier bullet from my .220 flies increasingly faster than the Swift's lighter bullet. And right fresh from the muzzle, it delivers increasingly more energy.
This velocity edge is not so important as velocity itself but for the distinctly flatter trajectory, shorter time of flight, and resulting narrower cross-wind deflection. For long-range shooting, the A-Max's much longer flight at supersonic velocities is also an advantage. It doesn't drop to trans-sonic velocity until about 1,500 yards or more. Clearly, it's still doing its best at the longest practical varmint-shooting distances. In well made rifles, it also groups well enough for persnickety shooters who delight in long shots at small varmints.
Divernhunter":pgf5os8j said:My thoughts have always been if you need to shoot 70+ gr bullets get a 6mm/243.
But that is just me.
jmad_81":2xcj2c5w said:From what I have read online (we all know everything on the interweb is 107% accurate all 8 days of the week) is that it is designed to fit in an AR-15 platform and out perform the 5.56 by 300 fps (25% more case capacity).
If this is the case, I would most certianly say that Nosler is doing something that hasn't been done by a major manufacturer. I know I'm not a big AR guy simply because I'm not a big 5.56 guy. I have an AR and its fun, but rarely gets carried. Now if I could get 300 fps closer to a 22-250 in an AR......I have a new favorite Coyote gun!