Readying for 400 Yard
03-01-2015, 11:48 AM
#11
Nontypical Buck
Join Date: Jul 2014
Location: Near a lake with no fish
Posts: 1,077
Amazing isn't it? The day I shot my best 400yd target, there was just about "0" wind, yet I had to use a full MOA.
03-02-2015, 05:42 AM
#14
Boone & Crockett
Join Date: Jan 2004
Location: Eastern PA
Posts: 12,746
Quote:Originally Posted by WV Hunter 
Ron, help me understand the MOA adjustment.
Are you saying that the calculator says that if you are sighted in dead on at 100yds, that you need to crank the scope up 33 moa from that point - and if 1moa=4 clicks, then crank up 132 clicks and in theory you should be on target for 400yds?
-------------- Yes, exactly! (end quote)
I wouldn't have thought that many clicks. I understand that 1 MOA is approximately 1" @ 100 yards. Therefore using the same angle is 4"@ 400 yards. So I would assume that the calculation would be only approximately 33 clicks @ 400 yards to achieve a 33" rise in elevation (1 click would = 1" @400 yards). Please enlighten me if I am incorrect. I never claimed to be a long range shooter. I just learned what my rifles could do at 300 and 400 yards only through practice.
Ron, help me understand the MOA adjustment.
Are you saying that the calculator says that if you are sighted in dead on at 100yds, that you need to crank the scope up 33 moa from that point - and if 1moa=4 clicks, then crank up 132 clicks and in theory you should be on target for 400yds?
-------------- Yes, exactly! (end quote)
I wouldn't have thought that many clicks. I understand that 1 MOA is approximately 1" @ 100 yards. Therefore using the same angle is 4"@ 400 yards. So I would assume that the calculation would be only approximately 33 clicks @ 400 yards to achieve a 33" rise in elevation (1 click would = 1" @400 yards). Please enlighten me if I am incorrect. I never claimed to be a long range shooter. I just learned what my rifles could do at 300 and 400 yards only through practice.
03-02-2015, 06:02 AM
#15
Nontypical Buck
Thread Starter
Join Date: Aug 2008
Location: Rapid City, South Dakota
Posts: 3,732
Umm... i am not sure i understand your question, and also, i am not sure i could answer it if i did understand the question.
How about this... The ballistic calculation say if one has the rifle sighted in exactly at 100 yard, then to be sighted in exactly at 400 yard, the elevation dial must be turned up 33 moa, which for this scope is 132 clicks, which is nearly equivalent to 132" out there at 400 yard. That would be 132 clicks to reach 400 yard, not 33 clicks....?? Help? 33" at 100 yard projects to 132" at 400 yard...?
The fun part, is i get to try it in real life.
How about this... The ballistic calculation say if one has the rifle sighted in exactly at 100 yard, then to be sighted in exactly at 400 yard, the elevation dial must be turned up 33 moa, which for this scope is 132 clicks, which is nearly equivalent to 132" out there at 400 yard. That would be 132 clicks to reach 400 yard, not 33 clicks....?? Help? 33" at 100 yard projects to 132" at 400 yard...?
The fun part, is i get to try it in real life.
03-02-2015, 06:29 AM
#16
Nontypical Buck
Join Date: Jul 2014
Location: Near a lake with no fish
Posts: 1,077
Quote:Originally Posted by WV Hunter
Ron, help me understand the MOA adjustment.
Are you saying that the calculator says that if you are sighted in dead on at 100yds, that you need to crank the scope up 33 moa from that point - and if 1moa=4 clicks, then crank up 132 clicks and in theory you should be on target for 400yds?
-------------- Yes, exactly! (end quote)
I wouldn't have thought that many clicks. I understand that 1 MOA is approximately 1" @ 100 yards. Therefore using the same angle is 4"@ 400 yards. So I would assume that the calculation would be only approximately 33 clicks @ 400 yards to achieve a 33" rise in elevation (1 click would = 1" @400 yards). Please enlighten me if I am incorrect. I never claimed to be a long range shooter. I just learned what my rifles could do at 300 and 400 yards only through practice.
Ron, help me understand the MOA adjustment.
Are you saying that the calculator says that if you are sighted in dead on at 100yds, that you need to crank the scope up 33 moa from that point - and if 1moa=4 clicks, then crank up 132 clicks and in theory you should be on target for 400yds?
-------------- Yes, exactly! (end quote)
I wouldn't have thought that many clicks. I understand that 1 MOA is approximately 1" @ 100 yards. Therefore using the same angle is 4"@ 400 yards. So I would assume that the calculation would be only approximately 33 clicks @ 400 yards to achieve a 33" rise in elevation (1 click would = 1" @400 yards). Please enlighten me if I am incorrect. I never claimed to be a long range shooter. I just learned what my rifles could do at 300 and 400 yards only through practice.
However the bullet loses velocity over increased distance, increasing the bullet drop at longer ranges. This requires the higher bullet arch in flight and the need for increased elevation. The further the distance a bullet travels, it continues to lose velocity at a faster rate requiring increasingly higher elevation. Increase the velocity or, increasing the bullets ballistic coefficient and you lessen the arch. Increase both together and lessen the bullet's arch even more, lessening the amount of necessary elevation required.
03-02-2015, 06:41 PM
#17
Boone & Crockett
Join Date: Jan 2004
Location: Eastern PA
Posts: 12,746
I was surmising that the bullet only dropped 33" at 400 yards. That was a brain cramp for sure. We are talking a 300 gr ML bullet shot at moderate velocity. I realize now that the 33 clicks would only be equal to 33" in elevation without accounting for bullet trajectory (AKA drop).
Shooting 400 yards with a ML is an interesting endeavor. But I personally will attempt to keep my shots to 100 yards or so. Besides, I'd have trouble counting to 132!!
PS: Ron, I read you post about the actual shooting at 400 and saw the pics. Pretty cool.
Shooting 400 yards with a ML is an interesting endeavor. But I personally will attempt to keep my shots to 100 yards or so. Besides, I'd have trouble counting to 132!!
PS: Ron, I read you post about the actual shooting at 400 and saw the pics. Pretty cool.
