Will Recoil Determine the 243 Winchester versus 7mm-08 Remington Winner? It's bullet length, not weight, that compromises stability. Recoil also becomes rather stout for some. In the 7mm-08 stability gets unpredictable with VLD bullets heavier than about 180 grains. You could start seeing groups open up and oblong bullet holes in targets. Step up to 105-grain and heavier VLD bullets in 243 Winchester and they are on the ragged edge of stability in a 1-10 twist. Common barrel twist rates of 1-10 in most 243 Winchesters and 1-9 in most 7mm-08 Remingtons determine maximum bullet length for stable flight in each. Bullets from 120 grains to 150 grains are most common in factory 7mm-08 Remington loads.

In the 28-caliber you can find bullets from 100 grains (Sierra Varminter) to 195 grains. 243 bullets are made in weights from 55 grains to 115 grains with 70 to 100 grains the most common, especially in factory ammo. The othermajor difference between the two is bullet variety. 243 Winchester versus 7mm-08 Remington Contest Could Hinge on Bullets This means it deflects less in cross winds and retains more energy downrange. What isn’t so obvious is that the increased weight of that 7mm bullet can, given an optimum, high B.C., low-drag shape, minimize atmospheric drag. 243 bullet a lot faster than a 140-grain. Both the 243 Winchester and 7mm-08 Remington are the perfect size for short, light, handy rifles that are easy for smaller framed shooters to operate.Īs you can imagine, the same pile of powder will push a 100-grain. There are slight length differentials in the neck/shoulder of each, but basic case capacity remains about 47 to 50 grains of water depending on bullet seating depth. That was 25 years after Winchester squeezed that same 308 Win. 284” diameter bullet and you have the 7mm-08, which Remington did in 1980. Squeeze the neck of this short-action 30-caliber case to hold a. The quickest way to grasp the potential of the 243 Winchester and 7mm-08 Remington is to know where they came from - the 308 Winchester. But which is “better?” That’s partly subjective, but we can examine some external ballistics that shine light on relative trajectory curves and power levels of both the extremely popular 243 Winchester and its younger cousin, the 7mm-08 Remington. The first question you might ask is if either can handle deer-sized game without manhandling shooters?Absolutely.

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