Ernie and Steve...OK...got my final conditions figured out. I'm going to go with a 300yds zero on the APS XP-100 for elk hunting. I think will give me a midrange trajectory of around 4-5"...which is not a concern since I am shooting at an elk.

Zero....300yds
Temp...25 degrees
Elevation....8500ft
Velocity....2700
Bullet....160gr AB 7mm
BC....531
Scope Height....1.77"
Scope...Burris 3-12x32 w/ BP

Went out this AM and zeroed at 300yds, held the 2nd SU on at 400yds and hit +4". Then held the 3rd SU on at 500yds and hit the plate (a little high) but not sure exactly how high due to all the other dingers in the paint. This will put the PPT out near 600yds which will work well. Could you also give me a MOA drop from the PPT to zero at 700yds. Just in case I need it for a following shot or want to play in the wide open spaces while I am out there. Drift at 10mph would also be great.

Thank a bunch!!

BTW...I'm thinking about an antelope trip in 2007 with my dad and brother. Would you fellas be interested or have suggestions?

Join HHI (Handgun Hunters International) and go to next years HHI antelope in Gillette, WY. Last year my son and I took 10 antelope in 4 days! I leave in a week and a half for this years 20th hunt in a row.

Always a lot of fun.

Bill in OR

Dan,
Here is the data:
I put 50% humidity in, since you did not designate.
Max trajectory will be between 150-175 yards (+5.4 inches)

#1 350 yds 6.2 10mph
#2 441 yds 10 "
#3 525 14.5"
#4 620 21"

From 300 yards (your zero) to 700 yards you have a bullet drop of 91.3" at your hunting parameters.
A good way to figure the half-way distance between the plex's/stadias will be the .4 juncture.
Example: You have 95 yards between #3 plex (525 yds) and the plex point juncture (620 yds). Midway would be right @ 572 yards. If you had a 572 yard shot you would use your #3 plex and then go .4 stadia units down (almost halfway).
We break up the distance in between the stadia units in 1/10ths.

If you have a fax, I will send you a printed sheet.

Ernie...thanks!! I'm used to "gapping". My years as a competitive archer in the fixed sights division (the old MBA for you IBO familiar shooters) gave me a LOT of practice in gapping sight pins for odd yardage shots. I had pins set for 20, 30, 40 and 50yds (50 was the max distance). When shooting g-hogs, deer and steel to 500yds w/ the BP scope I've been just going into 1/4ths and been very successful. When stretching distance to much longer yds like you fellas are doing, then I can see the need for more precise gapping.

BTW...no fax.

I'll try this:
yds --------------elev & wind
0 0.00 0.00 0.00 -1.8 0.0 0.0 2700 2589 0.0 0.0000
25 -0.75 0.00 2.00 0.2 -0.0 0.5 2668 2528 -0.1 0.0279
50 -3.50 0.25 2.00 1.9 -0.1 1.0 2636 2468 -0.6 0.0562
75 -4.00 0.25 2.00 3.2 -0.3 1.5 2605 2410 -1.4 0.0848
100 -4.00 0.50 2.00 4.2 -0.5 2.0 2573 2352 -2.4 0.1138
125 -3.75 0.50 2.00 4.9 -0.7 2.5 2542 2296 -3.8 0.1431
150 -3.50 0.75 2.00 5.3 -1.1 3.0 2511 2240 -5.6 0.1728
175 -3.00 0.75 2.00 5.3 -1.5 3.6 2481 2186 -7.7 0.2028
200 -2.50 1.00 2.00 5.0 -1.9 4.1 2450 2133 -10.1 0.2332
225 -1.75 1.00 2.00 4.3 -2.5 4.6 2420 2080 -12.9 0.2640
250 -1.25 1.25 2.00 3.3 -3.1 5.2 2390 2029 -16.1 0.2952
275 -0.75 1.25 2.00 1.8 -3.7 5.8 2360 1979 -19.6 0.3268
300 0.00 1.50 2.00 -0.0 -4.5 6.3 2331 1930 -23.6 0.3587
325 0.75 1.50 2.00 -2.2 -5.3 6.9 2301 1881 -27.9 0.3911
350 1.25 1.75 2.00 -4.9 -6.2 7.5 2272 1834 -32.7 0.4239
375 2.00 1.75 2.00 -7.9 -7.1 8.0 2244 1788 -37.8 0.4571
400 2.75 2.00 2.00 -11.4 -8.1 8.6 2215 1743 -43.4 0.4907
425 3.50 2.00 2.00 -15.3 -9.3 9.2 2186 1698 -49.5 0.5248
450 4.25 2.25 2.00 -19.7 -10.4 9.8 2158 1655 -56.0 0.5593
475 5.00 2.25 2.00 -24.6 -11.7 10.5 2130 1612 -62.9 0.5943
500 5.75 2.50 2.00 -29.9 -13.1 11.1 2103 1570 -70.4 0.6297
525 6.50 2.75 2.25 -35.7 -14.5 11.7 2075 1529 -78.3 0.6656
550 7.25 2.75 2.25 -42.0 -16.0 12.4 2048 1489 -86.7 0.7020
575 8.00 3.00 2.25 -48.9 -17.6 13.0 2021 1450 -95.7 0.7389
600 9.00 3.00 2.25 -56.3 -19.3 13.7 1994 1412 -105.2 0.7762
625 9.75 3.25 2.25 -64.2 -21.1 14.3 1967 1374 -115.2 0.8141
650 10.75 3.25 2.25 -72.6 -22.9 15.0 1941 1338 -125.8 0.8525
675 11.50 3.50 2.25 -81.7 -24.9 15.7 1914 1302 -137.0 0.8914
700 12.50 3.75 2.25 -91.3 -26.9 16.4 1888 1267 -148.7 0.9308
725 13.50 3.75 2.25 -101.6 -29.1 17.1 1863 1232 -161.1 0.9708
750 14.25 4.00 2.25 -112.5 -31.3 17.8 1837 1199 -174.1 1.0113
775 15.25 4.25 2.25 -124.0 -33.7 18.5 1812 1166 -187.7 1.0524
800 16.25 4.25 2.25 -136.2 -36.1 19.3 1786 1134 -202.0 1.0941
825 17.25 4.50 2.25 -149.0 -38.7 20.0 1762 1102 -217.0 1.1364
850 18.25 4.75 2.25 -162.6 -41.3 20.8 1737 1072 -232.7 1.1793
875 19.25 4.75 2.25 -176.9 -44.1 21.5 1712 1042 -249.0 1.2227
900 20.25 5.00 2.25 -191.9 -47.0 22.3 1688 1012 -266.2 1.2669
925 21.50 5.25 2.50 -207.7 -50.0 23.1 1662 982 -284.1 1.3116
950 22.50 5.25 2.50 -224.3 -53.1 23.9 1638 953 -302.8 1.3571
975 23.75 5.50 2.50 -241.6 -56.3 24.7 1614 925 -322.2 1.4032
1000 24.75 5.75 2.50 -259.8 -59.6 25.5 1590 898 -342.6 1.4500

If you can make senses out of it the first line of numbers going down is your distance in yards in 25 yd increments.
Your next three sets of numbers are Elev/Wind/Lead in MOA.
Next set of numbers beginning with 1.8 and going down (but not in a straight line) is your elev in inches. Then as in the MOA it shows wind in inches and Lead (moving @ 1 mph) in inches.
Next set of numbers is Velocity followed by energy.
Last two are drop from bore line and last but not least arrival time or time of flight.

The info looks good.

When i apply the interpolative system i do it in 25 yd. increments, by dividing bullet drop in MOA (minus the closest stadia MOA) by the total MOA between stadia-- basically the same thing really. The SU is divided mentally into tenths (just like the mil-dot guys), but i don't zero for every tenth, just for every 25 yd. interval. Now do the same for windage figuring 2.05 inch per hundred yards from x-hair to PPT (@ 12X ONLY), i.e. looking at your 525 yd, figures it shows a 10 mph wind at 2.75 MOA. Since there r 1.05" per every 1 MOA, then we can convert that figure to 2.9 IPHY (2.75 x 1.05). Now divide the 2.9 windage by the horizontal PPT of 2.05, and u get 1.4 SU (stadia units or plex units really). This is the most precise system of reference possible with a ballistic reticle , and it may take a little time to calculate but once done it's done, and it'll blow your mind when u make those connections while referencing windage with your SPEEDTECH weather watch-- hey did u get 1 BTW?

1 other thing i do is to always remember that a wind coming from about 1 o'clock (and it's equivalent angles in the other quadrants) is gonna be about 60% of the 3/9 o'clock calcs., and 2 o'clock (and equiv. quads. again) is about 90%.