is this possible?
12-14-2007, 04:51 PM
#11
Fork Horn
Join Date: Dec 2003
Location:
Posts: 264
RE: is this possible?
To answer your original question, it is highly unlikely that your gun will shoot both bullets with the same POI, since that is such a drastic change in bullet weight.
I think it's good advice to find something in the middle that your gun will shoot well for both.
I think it's good advice to find something in the middle that your gun will shoot well for both.
12-15-2007, 06:12 AM
#12
Fork Horn
Join Date: Nov 2007
Location:
Posts: 106
RE: is this possible?
What is the issue? If one sights in the 55 for 300 yards, the gun is sighted in for the 100 at what, 200?
I have the feeling that I am missing something? You can't just shoot the 100 and figure out what distance the sighting is good for? It seems like one would want the 100 to be sighted in for a shorter distance regardless.
I have the feeling that I am missing something? You can't just shoot the 100 and figure out what distance the sighting is good for? It seems like one would want the 100 to be sighted in for a shorter distance regardless.
12-15-2007, 10:00 AM
#13
Nontypical Buck
Join Date: Feb 2003
Location: Michigan
Posts: 3,476
RE: is this possible?
What is the maximum distance you will shoot with either bullet?
And I have heard a number of posters that have an affection for the .243 say that they use an 85 or 87 grain bullet for everything.
Maybe that would be the ticket for you.
And I have heard a number of posters that have an affection for the .243 say that they use an 85 or 87 grain bullet for everything.
Maybe that would be the ticket for you.
12-15-2007, 10:30 AM
#14
Fork Horn
Join Date: Dec 2003
Location:
Posts: 264
RE: is this possible?
Unfortunately it doesn't work that way.
When you are talking about high velocity rifles and various weighted bullets, the rate of twist in your barrel will determine how heavy of a bullet your gun will "stabilize". For instance, if you have a slow rate of twist in your barrell (i.e. 1 in 14 or slower), your gun will shoot lighter bullets much more accurately than it will heavier bullets. If you have a fast rate of twist (i.e. 1 in 8) it will stabilize heavier bullets much more effectively.
With the 2 bullets you discribedbeing so far apart in weight, more than likely your gun will not shoot both bullets well, much less have the same POI.
I've seen guns shoot heavier bullets with a POI that is higher than a lighter bullet. I don't know that I have an explanation for that but I have seen it.
When you are talking about high velocity rifles and various weighted bullets, the rate of twist in your barrel will determine how heavy of a bullet your gun will "stabilize". For instance, if you have a slow rate of twist in your barrell (i.e. 1 in 14 or slower), your gun will shoot lighter bullets much more accurately than it will heavier bullets. If you have a fast rate of twist (i.e. 1 in 8) it will stabilize heavier bullets much more effectively.
With the 2 bullets you discribedbeing so far apart in weight, more than likely your gun will not shoot both bullets well, much less have the same POI.
I've seen guns shoot heavier bullets with a POI that is higher than a lighter bullet. I don't know that I have an explanation for that but I have seen it.
12-16-2007, 07:51 AM
#15
Fork Horn
Join Date: Oct 2006
Location: galesville, wisconsin
Posts: 229
RE: is this possible?
ORIGINAL: johnnybravoo77
You could sight in with a 100 grain mark your elavation dial. Sight in the 55 grain and mark dial. Then when you switch back to either you'll just have a couple of clicks to get there.
You could sight in with a 100 grain mark your elavation dial. Sight in the 55 grain and mark dial. Then when you switch back to either you'll just have a couple of clicks to get there.
