|
|
Post by gunmutt on Feb 1, 2016 19:13:09 GMT -8
I have been dreaming of putting together a 1000 yard ar15 platform rifle. Now just need to figure out what will get me there. I know a larger platform makes it easier but that is why I have the long action bolt gun, but now I want to do it with an ar15. The 264 LBC and 243 LBC seem like the obvious choice. Ability to buck a cross wind of 5-10 mph is something that is needed so that is where the 264 in a 123 gr helps. I have a 264 but its in a 1-9 twist. So a few questions here that will help me narrow my options and recommendations are more than welcome.
Does the 243 LBC shoot the 105 bergers? If so how well.
What twist on the 243 LBC? I am think tight as possible say a 1 in 7
Does the 264 LBC trump the 243 LBC in just a simple paper punching rig? No hunting with this project.
What about ballistic calculations? Does the 243 LBC work in the applied ballistics software? Does anyone use it for this round?
Why does the 243 LBC barrel cost more than the 264 LBC?
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 1, 2016 19:30:21 GMT -8
I have been dreaming of putting together a 1000 yard ar15 platform rifle. Now just need to figure out what will get me there. I know a larger platform makes it easier but that is why I have the long action bolt gun, but now I want to do it with an ar15. The 264 LBC and 243 LBC seem like the obvious choice. Ability to buck a cross wind of 5-10 mph is something that is needed so that is where the 264 in a 123 gr helps. I have a 264 but its in a 1-9 twist. So a few questions here that will help me narrow my options and recommendations are more than welcome. Does the 243 LBC shoot the 105 bergers? If so how well. What twist on the 243 LBC? I am think tight as possible say a 1 in 7 Does the 264 LBC trump the 243 LBC in just a simple paper punching rig? No hunting with this project. What about ballistic calculations? Does the 243 LBC work in the applied ballistics software? Does anyone use it for this round? Why does the 243 LBC barrel cost more than the 264 LBC? Go with the 243 LBC. It will get you to 1000 and beyond. Run the numbers yourself, you will be surprised at what you find. And forget the 105's the sweet spot is the 95 grain Match King or the VLD. The 95's run at 2950 fps. The 105's run at 2750. All you need is a 1 in 8 twist barrel. The 243 LBC costs more because they are made 1 at a time by hand. |
|
|
|
Post by gunmutt on Feb 1, 2016 20:01:41 GMT -8
I guess since the 140 gr in the 264 is too much for the case the same as the 107s in the 243lbc
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 2, 2016 3:52:36 GMT -8
I guess since the 140 gr in the 264 is too much for the case the same as the 107s in the 243lbc A 107 will work in the 243 LBC. 2750 in nothing to sneeze at. The 105-107 weight bullets with their high BC are great. There are just better options that most people don't realize. |
|
|
|
Post by gunmutt on Feb 2, 2016 4:57:37 GMT -8
I completely agree. A bullets BC is completely worthless if it is not moving. You have to have a balance of all factors.
|
|
|
|
Post by gunmutt on Feb 2, 2016 6:38:46 GMT -8
I don't know why I said 1 and 7. 1 and 8 is what I meant.
With my current dies in 6.5 grendel what can continue to use. I have the redding type-s bushing sizing die and a hornady seater.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 2, 2016 7:09:38 GMT -8
I don't know why I said 1 and 7. 1 and 8 is what I meant. With my current dies in 6.5 grendel what can continue to use. I have the redding type-s bushing sizing die and a hornady seater. To change to 243 LBC you will need a bushing and a Hornady 243 Win seating die. That's all it takes if you have the "S" die. |
|
