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650 fps Slow Barrel??
Knowing actual drops is all you need to get a pretty good estimate of MV. Ambient conditions are very well known, as is the BC of the bullet. The estimates on those variables is a) quite close to reality and b) being wrong on those variables does not account for the magnitude of difference seen... -
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650 fps Slow Barrel??
No more of the "bad" ammo, so I can't. But at the time I did shoot it multiple times at both 100 and 200 (meters, not yards) and it was very consistently 5 inches high at 100 meters when zeroed at 200 meters. All previous ammo and the new stuff: 2.5 high. That sorta says it all right there... -
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650 fps Slow Barrel??
Update: New box of ammo and all is good in the world again. At first, I didn't change a thing on my rifle or scope. It was set up zeroed at 200 meters based on my previous box of ammo. Well, my first 3 shot group at 200 meters this time? Almost 9 inches high!! (i.e. my theory that the last box... -
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650 fps Slow Barrel??
Yeah I'm gonna try a new box of ammo from a different lot first just to be sure. If I get the same result, I'll be getting a chronograph, making a test plan, and taking very detailed notes. -
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650 fps Slow Barrel??
It's calculated based on: I figured out what my velocity would have to be in order to be zero at 200 meters and 4.5" high at 100 meters, which is what I was experiencing. Velocity would have to be 2100. Using 2100, I plug in 100 yards as my zero and look up what the bullet drop would be at 300... -
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650 fps Slow Barrel??
Thanks Gerald. I do agree. Only problem is mine is dropping 26" at 300 yards with a 100 yard zero, not 16". So it seems wayyyy slow. Accurate though! The gun shoots that ammo really well! -
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650 fps Slow Barrel??
Hi all, Having a minor crisis a couple days before hunting season and was hoping someone could help put my mind at ease! I was sighting in yesterday. I zeroed at 200 meters (219 yards). Ballistics say I should be approx. 2.5 inches high at 100 meters (110 yards), but I was actually 4.5 inches...
