100 yards vs 200 yards

[Loyalist Dave]

Ah,... well,... I only recommended that book for folks shooting very large, patched round ball with very large charges, out to 200 yards, so we're talking a .820 ball weighing 830 grains in a .84 caliber rifle, launched with 165 grains of 1Fg....as a minimum...for deer.

LD

 

[Rifleman1776]

Are we still on this?
At this point, I do believe CC will figure out more at the range than on his keyboard.
BTW, when I watched the slug gunners, I often saw a procedure some went through when things were not going well for them.
Some of them would come out from the shooting line, stomp and storm and cuss a major rant while smoking a cigarette. Then they would go back in and resume shooting. FWIW, that did not help at all.

 

[cannonball1]

Rifleman, your just a little antagonistic aren't you. Wonder if it comes from age. I spend more time at the range than I should. A lot of times this is more informative and in your case entertaining. http://www.muzzleloadingforum.com/fusionbb/skins/cobalt/icons/smile.gif

 

[Eterry]

Cannonball, this may be :dead:, but here's my thoughts.
I understand as a projectile reaches the speed of sound it becomes unstable, then after passing it, becomes stable again. If we except that as fact, then your pp conical could be above SOS at 100yds, near it at 200yds, then below it at 300yds. This COULD cause your rifle to be accurate at 100, not as much at 200, and if you compensate for drop at 300 your group (moa) COULD improve over your 200 yard group.
I know several long range smokeless shooters who strive to keep their bullet above SOS as long as possible to preserve accuracy. Another friend who won several state matches in the 80s tells me some rifles shoot better moa's at longer distance then others.
Good luck, keep shooting.

 

[Eterry]

Oops, that last sentence should have read... more accurate (moa)at long range than at SHORT range.

 

[cannonball1]

Eterry,

I think this theory is debatable as to a better group at the longer range than the shorter one. That being said, what I understand, it can RARELY happen, but not very often. I was glad you put the response though, it gave me a chance to study up on the subject.

 

[cannonball1]

Understand I am not talking MOA, but groups in inches.

 

[Eterry]

I definitely was speaking about MOA.

But as to your OP, it would be interesting to see what velocity your getting at the muzzle, determine the BC of your conical, then with software could calculate your velocity at distance. The guys who compete on the N-SSA talk of a different load for different distances.
EVERYTHING I've read about long range shooting speaks of how the bullet gets unstable at SOS.

 

[Grenadier1758]

If you click on this link to an image of jet fighter transitioning through the speed of sound, you will have to imagine that your bullet is going through the same buffeting.

Image at the Speed of Sound

 

[Center_shot]

It has a 6X scope. The four ft square target has a large horizontal line from one side to the other and same with a vertical line. I can see it just fine. I am convinced it is not the scope nor me. Constant 1" groups at 100 yards and the fact I can see the target well tells me that. One thing I might mention is they are in a group and not a string.

Ever check the parallax of that scope?