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Mil Dots and Elevation Holds

12579 Views 14 Replies 7 Participants Last post by  m141a
I dont have all the information probably needed but in a nut shell im looking at purchasing my first Mil Dot scope to go on a nice .308 i have been eyeballing for awhile. Im planing on putting some HPBT Sierra 175Gr. rounds with a Muzzle Vel. of 2600 FPS. with a G1 Ballistic Coefficient of 0.496 through this rifle. Im trying to figure out the Elevation holds if i was to zero this rifle at 300 Yards due to my limited range access. I have been racking my brain for the past 2 weeks trying to figure all this out and im to the point where im just exhausted and frustrated on not being able to figure this out on my own. According to what i have found in my Ballistics book the PATH IN INCHES IS AS FOLLOWS : 100 yrds +2.2 , 200 yrds 0.0 , 300 yrds -9.1 , 400 yrds -26.1 , 500 yrds -52.4 , 600yrds -89.5 , 800 yrds -204.8 , 1000yrds -393.0
WIND DRIFT IN INCHES AS FOLLOWS : 100yrds 0.7 , 200yrds 3.0 , 300yrds 7.0 , 400 yrds 12.9 , 500yrds 21.0 , 600yrds 31.3 , 800yrds 60.2 , 1000yrds 111.2

If anyone can compute this for me and repost , as well as explain how you did it i would be very thankfulfor your time on this irritating issue im having. My book has an example with a .308 Fed. 168Gr. with a (600yrd Zero) as follows

yards Inches Mils
900 +158 +5.0
800 +88 +3.0
700 +36 +1.5
600 Zero Zero
500 -23 -1.25
400 -35 -2.5
300 -37 -3.0
200 -30 -4.0
100 -18 -4.5

Since the above chart is set for a 168Gr. bullet and zeroed at 600yrds , im only going to ASSUME that the round i want to use 175Gr. is heavier and that i want to zero at 300yrds there for the chart above would be incorrect. SO im asking for help on trying to figure this out cause my brain is fried , as much as i want a mil dot scope im just frustrated and about to give up with the mil dot idea. You all are my last hope on trying to "BREAK THIS DOWN BARNEY STYLE" for me. Thanks again
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i thank you for posting that might be the seed ,,for my knowledge to grow in this regard. mabe..slim:)
might be simpler for me to just know the scope an rifle of my 2 favorite rifles..06 an 22.
heck even thats gets about to my limits ..i say this since ive got two favorite rnds for each gun .an holdover is of course different for just these ,,at variouse estimated ranges..slim
yall excuse me i just started my first cup ,this morning. i might start making sense ,oh lets say about bed time..grin.
a side note ..its funny to me how a cup o coffe gets me cranked in the morning an danged if it don t put me to sleep at night.. probably not your average bear ,though..[yogi bear] ,for those who think ive finally went round the bend..
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