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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Altitude effect
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<blockquote data-quote="Bob2650" data-source="post: 1857178" data-attributes="member: 112280"><p>First, I would like to apologize for the thread drift. While this is not about rifles, it does illustrate that there is little substitute for actually testing your loads at the distances your interested in. Back then we did not have Kestrel or Applied Ballistics. We recorded data for the range card by lots of shooting. I highly recommend some kind of weather meter and a good ballistics program to help out with the range card. It do not advocate relying strictly on the electronics because just like dependence on a GPS you will be asking to get lost someday. O-crap, more thread drift! OK, Here we go:</p><p></p><p>My pistols are set up to be zeroed at 25 and 50 yards at the same time. I do not need to make any adjustments during the match. This is accomplished with selecting scope rings to put the scope at the right height on the 22 and for the 45 I shoot different loads at 25 yards and 50 yards. The 50 yard load is 4.4 grains of VV N310 under a Nosler 185 grain jacketed HP, which is selected for accuracy and the 25 yard load, 3.4 grains of Bullseye under a Star 185 grain swagged lead HP is adjusted for elevation. That is not enough power to cycle the pistol with a slide mounted scope. The 22 load is by Eley.</p></blockquote><p></p>
[QUOTE="Bob2650, post: 1857178, member: 112280"] First, I would like to apologize for the thread drift. While this is not about rifles, it does illustrate that there is little substitute for actually testing your loads at the distances your interested in. Back then we did not have Kestrel or Applied Ballistics. We recorded data for the range card by lots of shooting. I highly recommend some kind of weather meter and a good ballistics program to help out with the range card. It do not advocate relying strictly on the electronics because just like dependence on a GPS you will be asking to get lost someday. O-crap, more thread drift! OK, Here we go: My pistols are set up to be zeroed at 25 and 50 yards at the same time. I do not need to make any adjustments during the match. This is accomplished with selecting scope rings to put the scope at the right height on the 22 and for the 45 I shoot different loads at 25 yards and 50 yards. The 50 yard load is 4.4 grains of VV N310 under a Nosler 185 grain jacketed HP, which is selected for accuracy and the 25 yard load, 3.4 grains of Bullseye under a Star 185 grain swagged lead HP is adjusted for elevation. That is not enough power to cycle the pistol with a slide mounted scope. The 22 load is by Eley. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Altitude effect
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