I need a chronograph and there’s a big difference in spending $250 for a chronograph vs the FX model. Just curious if I need a BC calculator? And yes I do plan to shoot LR
Is a BC calculator actually needed?
- Thread starter Airgun.Sniper
- Start date
Needed for what? Benchrest? Hunting? I hunt. As long as my pellets or slugs behave accurately & consistently I've never had a need to pay attention to BC.
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If you want to calculate shots, yes. If you want to manually Confirm poi dialing and sticker your turrets. No. There's plenty of free calculators out there that already have projectile data for airguns loaded. I use my phone for 2 guns, stickers on another and have a ballistics solving optic on yet another. I will never go back from calculating shots and ffp optics personally.
If you want to find your actual bc, you need a chrono, a range finder and strelok will do it, but it's harder to find these days
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Yeah strelok got deleted. I own a rangefinder that one isn’t hard to come by. trying to see what I have left to purchase
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You can still get it, just not in an app store. Luckily I had already had premium on my phone. The dnt ballistics app does similar, it's just not as convenient to use. In strelok the only time my velocity or bc has changed from factory data is to compensate for something I've pushed too far.
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I have a $250 Caldwell chronograph with the tripod and its a pain in the butt to drag with me, setting it up in the perfect position. Sometimes if the sun is too bright it won't read the projectile. To connect the Caldwell mobile app to the chronograph you need a cell phone with headphone jack.
The fx outdoors chronograph is expensive but its small, sits on the bench and gives you ballistic calculation.
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If you get Chairgun Elite it is the same as the old Strelock Pro. And it gets pellet and reticle database updates regularly.
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I have not done this yet but I may buy another cheap $20 chinese chronograph and put it in front of the bullseye of the target and use it and the chronograph at the muzzle to give me the data to calculate the BC. My better guns are plenty accurate enough to miss the down range chronograph but if I mess up it's no huge loss.
What I do is shoot groups at various distances and use that shooting data to compare to the calculated data using published bcs. Where necessary I modify the bc in the trajectory program to match the shooting data.
What I do is shoot groups at various distances and use that shooting data to compare to the calculated data using published bcs. Where necessary I modify the bc in the trajectory program to match the shooting data.
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I downloaded that one too, thank you. Strelok pro, dnt, element, chair gun, hornady. Diversification
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I had a Strelok installed on my Samsung tablet for years, I am using it at my range.
I like the larger screen, WindMeter and FX radar app and Strelok all I can fit in there and the GUI is much clearer.
Last year when Igor came out with a NFC dope card, I learned that tablets have no NFC so I bought another Strelok for my cellphone from Huawei store.
So yes, Strelok was here all the time just need some little effort.
I like the larger screen, WindMeter and FX radar app and Strelok all I can fit in there and the GUI is much clearer.
Last year when Igor came out with a NFC dope card, I learned that tablets have no NFC so I bought another Strelok for my cellphone from Huawei store.
So yes, Strelok was here all the time just need some little effort.
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One thing to remember is not all BC calculations are the same on chronos. Some, extrapolate velocity at differing ranges and some actually measure it. Are the calculations that far off, I dunno. With a radar like the Garmin, if I wanted to figure out BC, then I could place the chrono close to a target at whatever distance I deemed relevant, and do the math.
For me, I usually sight in my rifle at, for instance, 30meters, then shoot at a known distance (like 100meters) and use a ballistic calculator, plug in the BC from the internet, (or estimate it), then adjust the BC to get the drop at a known distance to match my shooting. After that you have "corrected" the calculator to your projectile and all should be very close.
Remember BC changes with weather, velocity etc, so it's a "moving target" so to speak.
For me, I usually sight in my rifle at, for instance, 30meters, then shoot at a known distance (like 100meters) and use a ballistic calculator, plug in the BC from the internet, (or estimate it), then adjust the BC to get the drop at a known distance to match my shooting. After that you have "corrected" the calculator to your projectile and all should be very close.
Remember BC changes with weather, velocity etc, so it's a "moving target" so to speak.
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Diversification, Energy, ImpactI downloaded that one too, thank you. Strelok pro, dnt, element, chair gun, hornady. Diversification
Just sayin'
Edward
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Not unless BC means something to you. I shoot all sorts of projectiles and don’t know the BC of half of them. If the gun shoots it consitently, I’m happy.
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