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
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Balllistics Program Question
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="Dave King" data-source="post: 24756" data-attributes="member: 3"><p>Cam</p><p></p><p> Temperature sensitive powders are a bit of a problem, try to stay away from the worst or operate with that understanding.</p><p></p><p> Elevation and other atmospherics (excluding temperature sensitive powders) will have little or no effect on Muzzle Velocity (MV), it will effect the downrange trajectory by increasing or decreasing the flight time for a given (similar) distance.</p><p></p><p> I use the same MV at any altitude, I do verify long range trajectory prior to a shoot at different elevations (significant elevation changes). I have a ballistic prediction before entering the new area and verifiy the data then make a comparison with the "home" (in my case, flat land) data.</p><p></p><p> I print my own "zero" targets in Microsoft Word. Use the grid feature and set the grid to 1", add a header and footer with the data you feel is important. I include, distance, date, time, temp, wind speed, powded name and weight, bullet name and weight, rifle, cartridge (including brass name and prep), primer, trigger weight, scope name and setting. I have a wind and light "circles". On the side I have numbered lines for the load (shot) number and MV as well as my "call" info. I use these targets in paired sets, one goes downrange to the backer and the other stays on the firing line with the rifle. I plot and number the impact position of the rounds as they are fired, I later use this with the MV to find a "sweet spot".</p><p></p><p> Standard printer paper is a little fragile and the holes sometimes rip, I use clear packing tape on the back of the downrange target to make them more durable (a needed additive).</p></blockquote><p></p>
[QUOTE="Dave King, post: 24756, member: 3"] Cam Temperature sensitive powders are a bit of a problem, try to stay away from the worst or operate with that understanding. Elevation and other atmospherics (excluding temperature sensitive powders) will have little or no effect on Muzzle Velocity (MV), it will effect the downrange trajectory by increasing or decreasing the flight time for a given (similar) distance. I use the same MV at any altitude, I do verify long range trajectory prior to a shoot at different elevations (significant elevation changes). I have a ballistic prediction before entering the new area and verifiy the data then make a comparison with the "home" (in my case, flat land) data. I print my own "zero" targets in Microsoft Word. Use the grid feature and set the grid to 1", add a header and footer with the data you feel is important. I include, distance, date, time, temp, wind speed, powded name and weight, bullet name and weight, rifle, cartridge (including brass name and prep), primer, trigger weight, scope name and setting. I have a wind and light "circles". On the side I have numbered lines for the load (shot) number and MV as well as my "call" info. I use these targets in paired sets, one goes downrange to the backer and the other stays on the firing line with the rifle. I plot and number the impact position of the rounds as they are fired, I later use this with the MV to find a "sweet spot". Standard printer paper is a little fragile and the holes sometimes rip, I use clear packing tape on the back of the downrange target to make them more durable (a needed additive). [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Balllistics Program Question
Top