Amazing Ballistics on 7mm

haugenna · 12-02-2005, 04:16 PM

I was looking at the hornady reloading book. I may be crazy but the 7mm had great ballistics shooting the 162 grain A Max. The B/C is .625. What causes this caliber and bullet to outperform the big magnums past 300 yards. Anyone have any input on this gun/bullet combo?

Rebel Hog · 12-02-2005, 04:56 PM

Quote:

ORIGINAL: haugenna

I was looking at the hornady reloading book. I may be crazy but the 7mm had great ballistics shooting the 162 grain A Max. The B/C is .625. What causes this caliber and bullet to outperform the big magnums past 300 yards. Anyone have any input on this gun/bullet combo?

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Rebel Hog · 12-02-2005, 04:59 PM

Using Hornady's Light Magnum .270 Winchester loading with the 130-grain InterBond bullet, Layne downed this 750-pound elk. Bullet performance was practically perfect.

haugenna · 12-02-2005, 05:01 PM

Rebel,

When I say past 300 yards I am meaning 300-1000yards. This bullet in that caliber surpasses velocities, energy, and drop than those posted by the 300 RUM, 300 Weatherby, 30-378.

bigiron · 12-02-2005, 05:24 PM

Ithink you made a mistake dont think the 7mm could hold a candle to the 300RUM

haugenna · 12-02-2005, 05:29 PM

Check your Hornady reloading books. Its no mistake.

stubblejumper · 12-02-2005, 05:40 PM

Of course you could launch the 240gr matchking with a bc of .711 at the same velocity out of a 30-378 that you could launch the 162gr a-max out of the 7mmremmag.

Rebel Hog · 12-02-2005, 06:05 PM

Quote:

ORIGINAL: haugenna

Rebel,

When I say past 300 yards I am meaning 300-1000yards. This bullet in that caliber surpasses velocities, energy, and drop than those posted by the 300 RUM, 300 Weatherby, 30-378.

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haugenna · 12-02-2005, 06:49 PM

Stubble,
I did hear that you could shoot that 240gr match king. Is that 162 A max a good bullet?

Clarify on the gun I was looking at was a 7MM STW and 7MM Weatherby. Those ballistics outshined the 300RUM and 300 Weatherby. Is this that good of a bullet gun combination?

haugenna · 12-02-2005, 07:05 PM

Got my book out,

7MM 162gr A max at 3200FPS muzzle velocity

at 800 yards with 300 yard 0.
energy 1526
velocity 2060
drop -99.1

300 Rum shooting a 168gr A max 3300 FPS
at 800 yards

energy 1247
velocity 1829
drop -107.2

I didn't know that the 7mm was such a boomer.