Very well put. Everyone will have their own preference, I always set up with 2 zeros like shooting down a pipe the diameter of my target (MPBR) but I am definately going to give the single zero a try, much easier to always remember it will be hold over.
Very good video. I prefer the zero at 40 meters, in the last distances, where it is necessary to correct more wind, it is better to have the Cruz dot closer. greetings
If a pellet is shot at the same speed .a heavy or light will follow the same trajectory .the heavy will in practice shoot flatter .because off the better bc, and holds the speed better , i bote shot at 12 ftlbs the 177 will go faster and shoots flatter ,because the time to the target is shorter, and time to fall also . . try to drop a 177 and 452 bullet they hit the ground at the same time, 8 grain pellet and 255 grain
Thank you for your insight, but you know as well as I do that different weight pellets from the same airgun all leave the barrel at different velocities so their trajectories will be different. I've no doubt that .22 shooters would love to have the same flat trajectory as .177 shooters from a sub 12 airgun, but it ain't going to happen! 🙂👍
My apologies. HFT is nothing to do with ballistics which is why I didn't include it. HFT stands for Hunter Field Target. It's a shooting sport where competitors shoot at metal targets that fall over when a 'kill zone' is hit. Targets are usually set out in woodland at different ranges and the kill zones are different sizes. Hope that helps? 🙂👍
Dead wrong - gravity effects all masses equally - heavy/light all drop at the same rate. SPEED is the determining factor to the curve. Let’s say your muzzle velocity is 1000fps - in rough, thrown together numbers - in the first 1/10 sec, the pellet drops say 1 ft, and travels say 90ft, losing speed. At the start of the second second, the velocity is say 800fps, ends at 500fps, and travels only 60 ft, and gravity accelerates at 10m/s/s , so thé drop in that second tenth is perhaps 3ft. Ultimately, if we shot horizontally off a Cliff, the pellet would stop moving forward entirely, and drop straight down.
The pellet is slowing due to air resistance. With no air resistanne the pellet would not lose any velocity but would arc down towards the mass of the earth and accelerate due to gravity if it was not at orbital velocity, which is aprox 7900m/s at sea level. In the real world air resistance is significant so you need to factor in surface area of the pellets and air resistance (which is proportional to the square of the velocity). A 177 pellet is about 16mm2 and a 22 is about 23.8mm2. In reality it is a complex equation which is essentially pointless as you can shoot at a piece of card and enter your drop distances into excel. With a few distances you can calculate all the intermediate values (interpolate) and extrapolate for longer distances ( with inceasing error bars).
So we'll explained 😊 really glad I found you
Glad it was helpful! 🙂👍
Simple and easy. Thanks again.
You're welcome!
your range card helped me out so much. I am understanding this more thanks to you
Great to hear!
so i have seen a few videos on thus subject but yours has been the easiest to understand. very nice indeed mate 👍
Glad to hear that. Thanks for the feedback.
Randomly suggested by RUclips algorithm but very informative
Awesome, thank you! 🙂👍
Very well put. Everyone will have their own preference, I always set up with 2 zeros like shooting down a pipe the diameter of my target (MPBR) but I am definately going to give the single zero a try, much easier to always remember it will be hold over.
I'm all for keeping things as simple as possible. 👍
Great video. Now I understand why I don't have to use any hold unders. Zeroed at 30 yards still only a single point zero.
Thanks! 👍
Another great video, thank you
Glad it was helpful! 🙂👍
Very good video. I prefer the zero at 40 meters, in the last distances, where it is necessary to correct more wind, it is better to have the Cruz dot closer. greetings
It's a personal thing whether you want both holdovers and holdunders.
@Jeff - the hold under/over pics, could probably do with pointers pointing at he Mildot etc to show people what/where you mean.
Thanks, you may be right, but it's too late now! 😄
drop due to gravity is 1/2a x t squared , where a is acceleration due to gravity , and t is time
Thanks Jonathan.
Nice video, but i am looking for a table on the drop of my ammo so i can adjust based on distance but i can make one myself it seems
Thanks, check out my videos #8 & #9 for two methods to create your table. 👍
Nicely explained 👍👍👍👍👍👍👍👍👍👍😎😎😎😎😎
Thanks Alan. 🙂
Excellent explanation however if your shooting a target at 45 degrees up or down the pellet will hit above the aim point.
Not necessarily, it depends upon how you range the target. I will be covering this in a future video.
If a pellet is shot at the same speed .a heavy or light will follow the same trajectory .the heavy will in practice shoot flatter .because off the better bc, and holds the speed better , i bote shot at 12 ftlbs the 177 will go faster and shoots flatter ,because the time to the target is shorter, and time to fall also . . try to drop a 177 and 452 bullet they hit the ground at the same time, 8 grain pellet and 255 grain
Thank you for your insight, but you know as well as I do that different weight pellets from the same airgun all leave the barrel at different velocities so their trajectories will be different. I've no doubt that .22 shooters would love to have the same flat trajectory as .177 shooters from a sub 12 airgun, but it ain't going to happen! 🙂👍
Starts wikth "definitions" - so what the heck is "HFT"???????
My apologies. HFT is nothing to do with ballistics which is why I didn't include it. HFT stands for Hunter Field Target. It's a shooting sport where competitors shoot at metal targets that fall over when a 'kill zone' is hit. Targets are usually set out in woodland at different ranges and the kill zones are different sizes. Hope that helps? 🙂👍
Dead wrong - gravity effects all masses equally - heavy/light all drop at the same rate. SPEED is the determining factor to the curve. Let’s say your muzzle velocity is 1000fps - in rough, thrown together numbers - in the first 1/10 sec, the pellet drops say 1 ft, and travels say 90ft, losing speed. At the start of the second second, the velocity is say 800fps, ends at 500fps, and travels only 60 ft, and gravity accelerates at 10m/s/s , so thé drop in that second tenth is perhaps 3ft. Ultimately, if we shot horizontally off a Cliff, the pellet would stop moving forward entirely, and drop straight down.
Thanks for the info.
The pellet is slowing due to air resistance. With no air resistanne the pellet would not lose any velocity but would arc down towards the mass of the earth and accelerate due to gravity if it was not at orbital velocity, which is aprox 7900m/s at sea level. In the real world air resistance is significant so you need to factor in surface area of the pellets and air resistance (which is proportional to the square of the velocity). A 177 pellet is about 16mm2 and a 22 is about 23.8mm2. In reality it is a complex equation which is essentially pointless as you can shoot at a piece of card and enter your drop distances into excel. With a few distances you can calculate all the intermediate values (interpolate) and extrapolate for longer distances ( with inceasing error bars).
Your not in a hurry, take your time,, explain well,,, Think your a teacher, hmmmm a pro,,,,
Thanks Mike. Yes I have done a lot of instructing in my time. 😉👍
@ ruclips.net/video/6bjkky3GjLg/видео.html
Amazing explanation than you 🙂
Glad you enjoyed it! 😀👍