sighting .243 question
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rantingredneck
New member
Your best bet is to check your ammo manufacturer's website for trajectory information on the particular load you're using and use that as your guide. Keep in mind though that variables such as barrel length and height of your scope mounts relative to their test rifles will affect the results somewhat.
The ideal thing would be to rough sight it at your 50 yd. range and then fine tune it at 100-200 yds later if you can.
The ideal thing would be to rough sight it at your 50 yd. range and then fine tune it at 100-200 yds later if you can.
kingudaroad
New member
The bullet will rise between 50 and 100 yards and then start dropping. A rough calculation will have the bullet dropping aprox 2" at 200 yards, if zeroed at 50 yards. So if you are 2" high at 50 yards you ought to be pretty darn close at 200 yards.
Bullet weight and velocity can change it up to a few tenths either way.
Bullet weight and velocity can change it up to a few tenths either way.
Art Eatman
Staff in Memoriam
I have found that dead on at 25 yards is pretty close to two or three inches high at 100. My usual sight-in is for two inches high at 100.
So, sorta guessing, at fifty yards I'd want to be no more than an inch high.
I've almost exclusively used the Sierra 85-grain HPBT for varmints and the smaller whitetail.
Art
So, sorta guessing, at fifty yards I'd want to be no more than an inch high.
I've almost exclusively used the Sierra 85-grain HPBT for varmints and the smaller whitetail.
Art
kingudaroad
New member
After further review, I'd probably sight in to 1.7" high at 50 yards. Coincidently, dead zero at 50 yard is also dead zero at 150 yards.
With a .243, 1.5" to 2" high at 50 yards should put you in the ballpark at 200 yards using 100 grain bullets.
If possible, shoot the rifle at 100 yards later. Yor strike shoud be about 1" above point of aim.
FWIW, I like to sight a .243 to shoot about 1.5" high at 100 yards, giving me a relatively flat shot out to about 300 yards.( about 2.5" difference between 50 and 300 yards using the same sight picture.)
The .243 is an excellent cartridge.
Mark
If possible, shoot the rifle at 100 yards later. Yor strike shoud be about 1" above point of aim.
FWIW, I like to sight a .243 to shoot about 1.5" high at 100 yards, giving me a relatively flat shot out to about 300 yards.( about 2.5" difference between 50 and 300 yards using the same sight picture.)
The .243 is an excellent cartridge.
Mark
Art Eatman
Staff in Memoriam
"With a .243, 1.5" to 2" high at 50 yards should put you in the ballpark at 200 yards using 100 grain bullets.
If possible, shoot the rifle at 100 yards later. Yor strike shoud be about 1" above point of aim.
FWIW, I like to sight a .243 to shoot about 1.5" high at 100 yards..."
dogngun, how can you be 1.5" to 2" high at 50 yards, and somehow only 1" or 1.5" high at 100 yards? That's mutually exclusive, seems to me. You can't be both flat-shooting and also have a basketball-like trajectory.
That is, if the bullet is at all high at fity yards, I'd think it's still rising at 100. So, 1.5 high at 50 would mean around 2.5 to 3 high at 100.
My rather lengthy experience with my particular .243 is that some 1.5 to 2 inches high at 100 yards is pretty much dead on at 200 yards, and five to six inches low at 300 yards. Rough figures, of course; I've not shot at paper beyond 100, although I've had no trouble with either Bambi or Mr. Wily Coyote. With my 19" Sako, I'm guessing I'm a bit below published muzzle velocities, as well.
Art
If possible, shoot the rifle at 100 yards later. Yor strike shoud be about 1" above point of aim.
FWIW, I like to sight a .243 to shoot about 1.5" high at 100 yards..."
dogngun, how can you be 1.5" to 2" high at 50 yards, and somehow only 1" or 1.5" high at 100 yards? That's mutually exclusive, seems to me. You can't be both flat-shooting and also have a basketball-like trajectory.
That is, if the bullet is at all high at fity yards, I'd think it's still rising at 100. So, 1.5 high at 50 would mean around 2.5 to 3 high at 100.My rather lengthy experience with my particular .243 is that some 1.5 to 2 inches high at 100 yards is pretty much dead on at 200 yards, and five to six inches low at 300 yards. Rough figures, of course; I've not shot at paper beyond 100, although I've had no trouble with either Bambi or Mr. Wily Coyote. With my 19" Sako, I'm guessing I'm a bit below published muzzle velocities, as well.
Art
mikejonestkd
New member
my .243 pistol ( 15 " barrel ) encore is 1" high at 50, 2" high at 100, zero at 200, and about 7 low at 300 with 95 gr remington accutips. my velocity is lower than rifles because of the the shorter barrel.
Simply put - sight is in to be about 1" high at 50 yards and you'll be in the ballpark for a 200 yard zero. You still should get some range time on paper at that range to make final adjustments.
Simply put - sight is in to be about 1" high at 50 yards and you'll be in the ballpark for a 200 yard zero. You still should get some range time on paper at that range to make final adjustments.
The .243 is a flat shooter and according to the ballistics section of the Remington website....
A 100 grain bullet that is 0.1 inches high at 50 yards is zeroed at 150 yards and 2 inches low at 200 yards and roughly 10.4 inches low at 300 yards. Thats pretty flat
If you were to go with a lighter core-lokt bullet such as an 80 grainer a zero at 50 yards puts you dead on at 150 and 1.6 low at 200. when you move out to 300 you're looking at only 8.8 low
The remington accutip-V bullet which is a 75 grain varmint bullet is dead at 50 and 150, 1.4 low at 200 and 7.8 low at 300
You should be able to tune er in from this data. They also have tables for other bullet weights so you can get more info.
A 100 grain bullet that is 0.1 inches high at 50 yards is zeroed at 150 yards and 2 inches low at 200 yards and roughly 10.4 inches low at 300 yards. Thats pretty flat
If you were to go with a lighter core-lokt bullet such as an 80 grainer a zero at 50 yards puts you dead on at 150 and 1.6 low at 200. when you move out to 300 you're looking at only 8.8 low
The remington accutip-V bullet which is a 75 grain varmint bullet is dead at 50 and 150, 1.4 low at 200 and 7.8 low at 300
You should be able to tune er in from this data. They also have tables for other bullet weights so you can get more info.