Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Hunting
Extreme Long Range Hunting & Shooting (ELR)
ELR Ballistics 'Truing' help
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Broz" data-source="post: 666704" data-attributes="member: 7503"><p>For what its worth we only get 2916 from a 28" Broughton 5C with 77 gr of H-1000 and a 210 VLD in that case volume at 4100 ft of altitude. If your inputted velocity is fast it will show up much worse with lower hits past 1000 yards. </p><p> </p><p>I would recheck some other drops at 800, 1000 and 1200 and document them to center group on paper. I would also recheck the 1550 shots and make at least 5 shots on paper wood or steel placed vertivally before I would change too much. I have seen lots of errors caused by estimating a dust ball off a rock at 1500 yards. Remember, the rock could be at an angle, this added to the angle of the bullet path coming in can serve up some bad juju as far as estimating the moa of a miss. Also it is really easy to see the bullet fragments splash into the dirt at the bottom of the rock and call it a low hit. This is why I insist on a vertical target (wood paper or steel) and many groups to work out drops to get a program "spot on".</p><p> </p><p>Also remember if you, your rifle and ammo combined capabilities are 1 moa at 1500 yards a few bullets on the outer edge of this could seem worse than it really is. And a 1 moa combo from a 300 win at 1550 is a pretty darn good one.</p><p> </p><p>Jeff</p></blockquote><p></p>
[QUOTE="Broz, post: 666704, member: 7503"] For what its worth we only get 2916 from a 28" Broughton 5C with 77 gr of H-1000 and a 210 VLD in that case volume at 4100 ft of altitude. If your inputted velocity is fast it will show up much worse with lower hits past 1000 yards. I would recheck some other drops at 800, 1000 and 1200 and document them to center group on paper. I would also recheck the 1550 shots and make at least 5 shots on paper wood or steel placed vertivally before I would change too much. I have seen lots of errors caused by estimating a dust ball off a rock at 1500 yards. Remember, the rock could be at an angle, this added to the angle of the bullet path coming in can serve up some bad juju as far as estimating the moa of a miss. Also it is really easy to see the bullet fragments splash into the dirt at the bottom of the rock and call it a low hit. This is why I insist on a vertical target (wood paper or steel) and many groups to work out drops to get a program "spot on". Also remember if you, your rifle and ammo combined capabilities are 1 moa at 1500 yards a few bullets on the outer edge of this could seem worse than it really is. And a 1 moa combo from a 300 win at 1550 is a pretty darn good one. Jeff [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Extreme Long Range Hunting & Shooting (ELR)
ELR Ballistics 'Truing' help
Top