3/13/2023 0 Comments Pmr 30 17 hmr![]() ![]() ![]() 097 for the 20 grain) suggest it is not a great platform for penetration, and the ballistic coefficients of the respective bullets (about. The sectional density of the projectiles (about. As for the case itself, it is the 22 WMR necked down to accept the 17 HMRs 0.172-inch-diameter bullet.īilled as the “worlds fastest rimfire,” it appears to be just that, although there are a few caveats. CCI reportedly manufactures most all 17 HMR ammunition, though there are slight differences between the brands themselves. With such flyweight bullets, as a practical matter they are most suited for ground squirrels, rabbits, and similarly fragile and small-sized game or varmints. Most all of the 17-caliber cartridges offered today are either 17- or 20-grain. The last rimfire considered to be a “successful” introduction was the 22 Winchester Magnum Rimfire in 1959. It is remarkable in many respects, gaining distinction as the first successful rimfire cartridge to hit the market in over 40 years. One fairly recent cartridge development that has gained traction and popularity is the Hornady 17 Magnum Rimfire introduced in 2002. It has been said in the industry that “when all else fails, invent a caliber.” Part and parcel of any highly new-product driven industry is the constant attempt to invent new lines of price and performance where none exist in a tangible, real-world sense.
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