05-01-2011, 08:24 PM
if my calculations are off please let me know. probobly will save me some cash and frustration on buying a scope with the wrong holdover intervals
i dont load, i bought a press and dies a wile back but havent started loading yet, I am waiting for a class on it next month. dont wanna start till i know exactly what i am doing
i did the calculations from wolf mpt 120gr 2615fps
as well as having a friend at a gun shop reload some of my brass as well using sierra btjhp 120gr 2650fps.
dont own a chrono but used one wile on the range a wile back, fps was around 2560 for the sierra loads and 2510 for the wolf. chrono wasnt mine though...
sierra puts BC at .403 in that range, wolf doesnt publish the bc for their rounds,
I was running a millet trs-1 4-16x on the carbine but with a min mag of 4x and all the added size and weight it seemed not right to me for a carbine, so i transfered it to my ar-10, i was however able to collect dope out to 500yrds at a couple of different times of the year and the drop seemed very close to my calculations when taking wind, temp, ect... in account.
data i got from ballistics calculator that closely matches my dope out to 500yrds
yrds / vel fps / drop moa
0 / 2560 / -3
100 / 2347 / 0
200 / 2145 / 1.6
300 / 1952 / 4.5
400 / 1771 / 8.2
500 / 1603 / 12.5
i dont load, i bought a press and dies a wile back but havent started loading yet, I am waiting for a class on it next month. dont wanna start till i know exactly what i am doing
i did the calculations from wolf mpt 120gr 2615fps
as well as having a friend at a gun shop reload some of my brass as well using sierra btjhp 120gr 2650fps.
dont own a chrono but used one wile on the range a wile back, fps was around 2560 for the sierra loads and 2510 for the wolf. chrono wasnt mine though...
sierra puts BC at .403 in that range, wolf doesnt publish the bc for their rounds,
I was running a millet trs-1 4-16x on the carbine but with a min mag of 4x and all the added size and weight it seemed not right to me for a carbine, so i transfered it to my ar-10, i was however able to collect dope out to 500yrds at a couple of different times of the year and the drop seemed very close to my calculations when taking wind, temp, ect... in account.
data i got from ballistics calculator that closely matches my dope out to 500yrds
yrds / vel fps / drop moa
0 / 2560 / -3
100 / 2347 / 0
200 / 2145 / 1.6
300 / 1952 / 4.5
400 / 1771 / 8.2
500 / 1603 / 12.5