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Old August 9, 2005, 11:40 PM   #11
ethernectar
Senior Member
 
Join Date: October 28, 2004
Location: Central CA
Posts: 218
This is a measured range (Sacramento county range)

Scope is a Leupold Mk4 6.5-20 from Premiere Reticle. 1/4 minute clicks. Definitely not a budget-minded optic.

The match shoots at 200, 300, 500, 600, 800, 900 and 1000 yards. Was high from the beginning. At 800 I turned 7 fewer clicks than the program recommended, which got my elevation closer to right. At 900 I turned a couple clicks less than prescribed and likewise at 1000.

Sight height was eyeballed with a micrometer at 1.75, not sure how precise that measurement needs to be.

Chrono'd a small batch the previous day, those chronos averaged out to 3006 FPS. But it was cooler by some 20 degrees+. However, even with putting in the temp to the software at 105, it didn't make up the difference.

Load Details:

Virgin 300 Win Mag Brass from Winchester
Winchester Large Rifle Primer
77gn Reloader 25 Powder
Sierra 190 Matchking HPBT
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