med358-boise
Well-Known Member
Modern 175-178 grain 308 bullets designed for long range hunting (High BC and lower required impact velocity most around 1600 fps) with a muzzle velocity of 2550 are traveling at 1800 fps+ at 500 yards.
If I was trying to make an effective longer range 308 Win hunting cartridge, I would take a good look at the 190 grain Nosler ABLR with its 1300 fps minimum impact velocity and launched at 2390 fps (very achievable) it is still doing 1550+ at 750 yards which is 120% of minimum impact velocity.
There are a 1/2 dozen powders available that make a muzzle velocity of 2600+ with a 22" very achievable with a 175 in a 308 Win with enough margin to find an accurate load.
Of course, you have to be a capable shooter and have a capable rifle.
Minimum impact velocity for bullet manufacturers typically refers to the lowest velocity at which a bullet reliably performs as designed upon impact. This includes expansion, penetration, or fragmentation, depending on the bullet's intended purpose.
If I was trying to make an effective longer range 308 Win hunting cartridge, I would take a good look at the 190 grain Nosler ABLR with its 1300 fps minimum impact velocity and launched at 2390 fps (very achievable) it is still doing 1550+ at 750 yards which is 120% of minimum impact velocity.
There are a 1/2 dozen powders available that make a muzzle velocity of 2600+ with a 22" very achievable with a 175 in a 308 Win with enough margin to find an accurate load.
Of course, you have to be a capable shooter and have a capable rifle.
Minimum impact velocity for bullet manufacturers typically refers to the lowest velocity at which a bullet reliably performs as designed upon impact. This includes expansion, penetration, or fragmentation, depending on the bullet's intended purpose.
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