BALL comes down when?

[RC]

is there a basic distance when a .600 balls starts to drop? I'd think the amount of powder would make it vary, but how much? if you're using 70 grains 2ff goex,would the ball still be going up at 75 yds? or would it be dropping already.I know there isn't a set answer for this due to many variables, but based on this load,w/ a 42 inch smooth barrel.what would your best guess/ estimate be? after 50,? after 75? might seem like a dumb question(???) yeah, but I only have so big a piece of paper :rotf: thanks! RC :winking:

 

[paulvallandigham]

Gravity begins to pull every projectile down as soon as it leaves the barrel. Gravity pulls on all things at the same time, and at the same rate of force. No ball drops faster.

What you are perhaps wanting to know is how high does a .62 cal ball have to be aimed to get it to travel the same distance as a lighter ball, at a given speed. Am I right?

 

[Brasilikilt]

As a basic rule of thumb

Hold a ball in your hand at the same height as your gun barrel and then drop the ball at the exact same time as the rifle is fired
Both balls will hit the ground at the same time, it's just that the one fired from the rifle will be a lot farther away.

 

[RC]

Paulvall, actually I'm tryin to figure out where my.600 ball is going between 50 and 75 yds. ..I can hit at 50 but somewhere in there it's either goin still up or dropping like a stone.. :hmm: Brasilikilt, findin the one I drop is easy..the one further away is the problem.... :rotf: and I ALWAYS hit the paper...with the one I drop! :applause: thanks RC

 

[wszumera]

is there a basic distance when a .600 balls starts to drop?

1/2 the diameter of ball past the end of your gun barrel.

From there it falls just as fast as if you dropped it. What changes the results is we generally shoot upwards so the rate of climb tends to mitigate the rate of fall. Unfortuantly the rate of climb is linear excluding air resistance while the rate of fall is exponential. Makes for different elevation angles for different ranges.

Clutch

 

[renovato]

The ball begins to drop the instant it leaves the barrel. The longer it's out of the barrel, the faster it drops as gravity accelerates it downward. Bullets never actually rise above the bore line, only above the sight plane.

Basically, where it begins to drop below the sight plane, and how much, depends on the velocity and the sighting distance. If you're sighted at 100 yards, it's above the sight plane at 75 and on it's way down. The only way to know for sure is to punch some paper and see.

 

[RC]

SOOO, what yer all saying, if I understand it right, if i aim at the 50 and it hits,IF there was a target @75yds. directly behind at same level the ball would hit low??? RC

 

[silverfox]

Right on the money. if you are on at 50 with a .60cal ball you will probably be a foot low at 100 yds.
The ball make a rainbow arc and started at the barrel it must rise to the sights maybe 1/2" then start to drop. I would guess if you are about 4" hight at 50 you would be 5" low at 100 with your powder charge.
I,m helping a friend with a .50 and he only wants to shoot 50 grs so at 50 yds 2" high just keeps him on the pie plate at 100 but on the bottom of it.
My .50 cal hunting load is 3"high at 50 and about 2" low at 100. so a center hold to 100 will get the job done.
Fox :thumbsup:

 

[TANSTAAFL]

Started to make an amateurish long winded dissertation, but Bob Spencer has addressed such much better than I could.



For your perusal.
[url] http://home.insightbb.com/~bspen/ballistics.html[/url]
[url] http://home.insightbb.com/~bspen/math.html[/url]
[url] http://home.insightbb.com/~bspen/sighting.html[/url]
[url] http://home.insightbb.com/~bspen/OddShots.html[/url]
[url] http://home.insightbb.com/~bspen/onetrajectory.html[/url]

 

[musketman]

SOOO, what yer all saying, if I understand it right, if i aim at the 50 and it hits,IF there was a target @75yds. directly behind at same level the ball would hit low??? RC

You can actually see and measure the drop with a series of targets (old news papers on a crude frame) set at known yardages, as long as the center mark is the same on all targets for a reference point...

exaggerated example:

 

[wszumera]

You can actually see and measure the drop with a series of targets (old news papers on a crude frame) set at known yardages, as long as the center mark is the same on all targets for a reference point...

Establishing a common line is a great use for that laser level you got for Christmas. Monofilament ( (Fishing)line works also.

Clutch

 

[RC]

SOOO, I go out nag a fishline for 100 yards, put up makeshift racks at 50-75-100 yds. staple newspapers (probably the comics) to each stand and hope NO ONE sees me! then shoot (that oughta get their attention!) and follow the mono line, now to be know as "line of fire?" well nobody eversaid FLA didn't have it's drawbacks :winking: as soon as ernesto gets out's here I'm goin try this....see I'm committed...or should be.. thanks guys this should be an expierence....oh my! :redface: RC

 

[musketman]

All you are doing is measuring the trajectory against a known reference... (fishing line)

If you do a series of shots, patch the holes or replace the paper after each shot so you know which hole belongs to which shot...

 

[RC]

guess that would be ..provided there is a hole...this should be interesting,,,or VERY depressing as in "where the he77 did that go?" :haha: RC

 

[J.D.]

A more durable target material would be the cardboard from appliance shipping crates. Your local appliance store will probably give you all of the cardboard from refrigerator crates you can haul off.

J.D.

 

[Slamfire]

You can calculate this with an exterior ballistics program. You'll need to know the ballistic coefficient of a round ball, and the welocity at which it is launched. Then you can specify a zero distance (where the ball strikes the aiming point) and the program will tell you how high the ball will be at intermediate distances, and how low at farther distances. Since computers love to calculate things down to a gnat's nether end, you'll need to round off to the nearest half inch or so. Then because it's just mathematics, you'll need to shoot at those ranges to prove the computer didn't know what it was talkin' about. :rotf: Or you can use the "line of fire" target series. :v

 

[faw3]

RC reading all this gave me a headache , let me tell you how my shots tested out of a smooth 62 - 600 ball - 32"barrel, 70gr 2f When I set it at 50 yds it was falling like a stone at 75, I cant find the notebook with that loading but ( got about 10 , 100page booksa over the yrs) it was someplace like 18 " drop if that helps, had to use 2 32" targets, 1 target 25 yards behind the 50 yd one to catch the shot and it was way down around the edge of the target dont even think it was inside the 32"er. Hope that helps, your ball is going to start dropping at the place you have your sights set 0 at the muzzle is 20 something( " )at 100 yds.( I'd have to see my page on it, or go try it out again. Fred :hatsoff:

 

[Wes/Tex]

I use Bob Spencer's set-up for a 20 bore. Basically, it's 80 grains of Goex FFFg, .125" hard card, lubed .500" cushion wad soaked adn drained with lube and either patched ball or bare ball with another hard card on top to hold ball in. This load gives 1475fps velocity and shoots 1 inch high @ 25 yards, 2" high @ 50 yards, on target @ 75 yards and about 4 inches low at 100 yards. Accuracy runs about 4 inches @ 50 yards, so I limit my shots to 75 yards or less.

For patching, I found Bob's suggestion to be spot-on. Ball about .020" under bore diameter (since 20 bores vary some) and a patch of .017" thickness. Sometimes use leather patches which are thicker but compress more than cloth and don't smoulder on the ground. My load I consider tops for FFFg and wouldn't try to match it with Swiss since it's finer grained and generates more pressure. Good luck.

 

Here is a link to a downloadable round ball ballistics calculator. In the time it took to read all these replys you could have figured it out yourself with this program. All you need is the ball diameter and velocity. You set a point of aim and sight height if you want, but it will give a result even without those variables.

[url] http://www.ctmuzzleloaders.com/mlexperiments/rbballistics/rbballistics.html[/url]

 

[CrackStock]

RC,

I not real smart and I got left behind by some of this discussion.

If a bore was dead level with the Earth when the shot was fired, it would go some distance while dropping steadily until it hit dirt. The faster it leaves the bore, the farther it will go before hitting. That is a fine theory, but not really helpful right now.

What is generally done is sight(s) are added which adjust where we hold the barrel so that we get results that we want. These force us to hold the gun at a slight upwards angle so that the ball will generally cross the point of sight on the way up and again on the way down. The Holy Grail here is learning when this can be manipulated to happen at times of advantage to the shooter. You adjust powder charges, bullet weight, patch thickness, barrel bend and sight(s) to tweak where the ball hits at various times and also work for consistent performance.

You can try to calculate if you have known numbers such as velocity,(chrono) ball weight, and distances. You can try to chart the path of the ball with paper sheets. You can just shoot at various distances. But in the end, you are trying to learn the flight path of your ball.

With your given info, I would think that there would be several inches drop at the 75 yard line, but you. But the proof should be on the paper.

CS