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Location: Wa.
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Distance Your Sight Your Rifle For?

Food for thought
Every cartridge developed has a "point blank range" which is the maximum range the bullet can travel and stay within the target zone. The further the target. the lesser the point blank range.
Lets talk 30-06. 30-06 power classification with spitzer bullets are capable of a point blank range from the muzzle to 270 yds. ( able to stay within a 6" target zone ) if set up properly. Beyond this point the extended range decreases the point blank range until eventually there will be but a few feet of range that will be within the target zone.
There are volumns written on the topic of trajectory. It gets quite a bit more complicated than this explanation.

A little added info
30-06 180gr Partition @ 2700fps
Point Blank Range (stay within a 6" target)

100 yd zero
PBR 0-185yds

200 yd zero
PBR 0-245yds

230 yd zero
PBR 0-270yds (max PBR)

300 yd zero
PBR 0-65yds (65-255yds it is above target) 255-330yds

400 yd zero
PBR 0-45yds (45 - 375yds it is above target) 375-420yds

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Location: Idaho
Joined: 06/01/2004
Posts: 1068
Distance Your Sight Your Rifle For?

fuzzybear ...

... your contributions have been fascinating and linger in my mind ... and I think I more understand them. If, for example, I want a 3-inch target zone, with my 21-inch barrel 3006 my 180 grain bullet is coming out at about (theoretically) 2650 fps ... I'm 1.5 inch high at 50, 1.5 inch low at about 210, exact zero at maybe 180 ... but the brute fact is that I aim dead on for a head shot 0 to 210 yards.

250 ... - 5 in.
300 ... -12 in.

... and then there's the longer stuff ...

400 ... - 32 in.
500 ... -62 in.

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Location: Wa.
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Distance Your Sight Your Rifle For?

You betcha. Knowing where your bullet is going is the key.

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Location: Idaho
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Distance Your Sight Your Rifle For?

... and the other thing your stuff shows, that at first is counter-intuitive, is that for the longer ranges one must actually be MORE accurate on range determination.

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Location: Wa.
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Distance Your Sight Your Rifle For?

With the standard rounds in the 30-06 power range. The bullet flight will be much the same. A 1/2 to 1" variation. Depending on distance.

Where it gets critical is with these new large capacity, powder burners that lay claim to being 500 yd game getters. They don't add as much distance to the PBR as one might expect. Owning a rifle that shoot one of these rounds require the same knowledge of trajectory as any other round. They don't automatically shoot 500 yds.

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Location: Utah
Joined: 03/03/2005
Posts: 383
Distance Your Sight Your Rifle For?
fuzzybear wrote:
With the standard rounds in the 30-06 power range. The bullet flight will be much the same. A 1/2 to 1" variation. Depending on distance.

You're right!

My 30-06 autoloader shoots 180-gr. Nosler Solid Base / Ballistic Tip / AccuBonds within 3/4" POI at 100 meters. This isn't surprising being that the same amount of power is probably used in all three and their BC's are pretty close: .494 / .507 / .509, respectively.

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Location: Missouri/Arkansas
Joined: 08/21/2003
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Distance Your Sight Your Rifle For?

Actually, fuzzybear, for most people, they are harder to shoot accurately even at reasonable hunting ranges.

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Location: Mosul, Iraq
Joined: 08/09/2005
Posts: 13
Distance Your Sight Your Rifle For?

A 200 yard zero is good for me. Then lots of variable practice. From 30yd's up to 500 yards. I like to get out in the foothills So I can get up on top of a hill and practice shooting targets at different elevations. But for the open foothills in the Owyhee desert of Idaho I start with 200 yards.

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