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Post by boblee on Sept 12, 2022 17:54:18 GMT -5
Anyone willing to share thier drop data and velocity for the 300 areomax .45 cal
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Post by hillbill on Sept 12, 2022 19:41:18 GMT -5
A LOT of variables with different powders/ charge weights. what load and barrel length do you have in mind?
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Post by boblee on Sept 12, 2022 23:29:38 GMT -5
Just looking for drop in moa/mils at known velocities and likely at your altitude/elevation. Barrel length not a concern or variable needed . Looking for data such as velocity 3000 fps, zero at 100. 1.3 moa at 200 4 moa at 300 elevation 1560 ,......ect thank you to anyone willing to share .
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Post by shindig on Sept 13, 2022 3:39:48 GMT -5
100yd zero
2950 fps
100 0
200 1.3
300 3.5
400 6.1
500 9.3
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Post by SURESHOT on Sept 13, 2022 7:47:22 GMT -5
Have to go back out and recheck, but the last time I shot my bolt gun with MV 2910, Zeroed at or about 200 yards 300 grain AEROMAX, N120 73 grains
200 yd. .56 low
300 yd. 6" low
400 yd. 7.25 moa
500 yd. 10.7 moa
600 yd. 13 moa
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Post by boblee on Sept 13, 2022 9:28:08 GMT -5
Exactly what I have been looking for, thanks for sharing guys. Would love to get some more data if anyone else is willing to share.
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Post by Chad on Sept 13, 2022 13:43:06 GMT -5
45cal. 24” Brux barrel with 209 ignition
2858fps with 303gr Areomax zeroed at 220yds yields
300yds-2.01 moa-drop 6.33”
400yds-4.89 moa-drop 20.47”
500yds-8.21 moa-drop 43.01”
600yds-12.04 moa-drop 75.67”
700yds-16.45 moa-drop 120.59”
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Post by jeepeater on Sept 13, 2022 18:28:28 GMT -5
.45 26” 1:20 twist Brux
300 Aeromax @3125fps
400ft above sea level
200 yard zero
300 -6”
400 -17.8”
500 -36.6”
600 -63.5”
700 -100.7”
800 -149.8”
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Post by sockethead on Sept 13, 2022 23:59:03 GMT -5
Posting your elevation would be quite helpful, since BC's can vary quite a bit with changes in altitude. Well, it's probably the drag equation that actually changes, but effectively it gives you a higher BC as the air gets thinner. From my limited observations it can be up to a 20% gain when going from sea level up to 7000 feet where I hunt. So a bullet with a .400 BC at high altitude would track the same as a .500 BC bullet at sea level. If you're trying to extract a BC from somebody's drop chart it could be way off for your gun unless you're shooting at a similar elevation.
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Post by Kyle on Sept 14, 2022 8:52:30 GMT -5
Recording data upon zero is critical for future shot scenarios. Good data in good data out, junk in junk out.
Record muzzle velocity, 100 yard velocity if using a Labradar, Temperature, Altitude, Humidity and Pressure. Temperature, Altitude, Humidity and Pressure rolled into one value is referred to as Density Altitude.
Keep track of velocity as the temp goes up or down. Establishing a feet per second gain or loss per temperature degree change is good information to know for making those longer shots where conditions are different than when the rifle was zeroed.
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Post by boblee on Sept 14, 2022 13:25:08 GMT -5
Da is a lot more to deal with than simple absolute pressure , both ways will get you there but I got a kestrel and won't be going back to da charts anytime soon. Additionally I'm hoping the data given is verified drop data not just numbers run on a ballistic app. Thanks guys for sharing .
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Post by boblee on Sept 18, 2022 14:50:56 GMT -5
Anyone else?
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Post by ballistic on Sept 25, 2022 9:37:39 GMT -5
Recording data upon zero is critical for future shot scenarios. Good data in good data out, junk in junk out. Record muzzle velocity, 100 yard velocity if using a Labradar, Temperature, Altitude, Humidity and Pressure. Temperature, Altitude, Humidity and Pressure rolled into one value is referred to as Density Altitude. Keep track of velocity as the temp goes up or down. Establishing a feet per second gain or loss per temperature degree change is good information to know for making those longer shots where conditions are different than when the rifle was zeroed. Great info Kyle -most won’t do it and it’s the key to success as the shots get longer. The zero can also change as the temps change. It’s all about how the powder and metal work together -sounds simple but it’s pretty complicated. If you aren’t taking notes as you shoot though the temps -expect misses on the longer shots. With over 30 years of muzzy shooting and many more with center fire -I’ve never found a combo that will shoot through extreme temp swings (and keep single digit deviation) and hold a perfect zero. I say extreme temps as I’ve shot in -10 F and also on 105 F days where barrel temps get over 130 degrees. I’m sure there’s some out there that have found that holy grail-lol. I takes notes and adjust. Good post Kyle. |
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Post by ballistic on Sept 26, 2022 9:40:09 GMT -5
Da is a lot more to deal with than simple absolute pressure , both ways will get you there but I got a kestrel and won't be going back to da charts anytime soon. Additionally I'm hoping the data given is verified drop data not just numbers run on a ballistic app. Thanks guys for sharing . Boblee I will agree on the above but challenge you to think about a few things. The drop charts that others have shared were correct for their setups and could be different for you. Scopes turrets often aren’t callibrated to turn perfectly. You could take 5 scopes from the same manufacturer and they won’t all turn a perfect moa for example. Shorter ranges don’t normally have the effects but the longer shots -it will reveal itself. Ballistic apps and kestrels are tools to keep in the toolbox but don’t always give you the hits when you dial up. Keep using those tools but add notes. Making a drop chart from known conditions is one of the better tools that many a competition shooter use. Even the advertised BC of a bullet can be off-another reason to shoot and verify. Combine that with extreme temp swings and a scope turret that turns 98% true and long shots will be misses. In short the best way to know your drops is to get out and and shoot and verify. Use your kestrel and ballistic apps as a guideline -they might even be spot on if your lucky. |
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Post by boblee on Sept 27, 2022 17:27:40 GMT -5
Yes I know , I am way beyond the basics I have aided in development of more than 1 ballistic program , been doing this a long time just only on the muzzeloader side of shooting long for about 6 years now but have been doing this since 2000 , this is just some data gathering , I appreciate everyone's input but all I need is data not coaching , I don't mean to come across as arrogant but I know some will take it that way , please dont take it that way . I am still interested in more data if anyone is willing to share thiers . I'm not trying to use it for my rifles just in a data collection phase. Once again thanks to all that have contributed.
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