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Rifles, Reloading, Optics, Equipment
Reloading
Retumbo - Powder temp V's velocity
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<blockquote data-quote="Topshot" data-source="post: 584346" data-attributes="member: 13285"><p>I contacted ADI who make this stuff. This is the reply that I got below, for what it is worth.</p><p>I do know that they test in 24 inch barrels so that may have some effect?</p><p>My results with my rifle seem to indicate a change of 25 fps so this is within the range that they state but over a smaller temperature range.</p><p> </p><p>It is interesting to see that they start their testing at -0 degrees. Strange things happen at the freezing point of water so a step change at this temperature might also be possible?</p><p> </p><p>Looks like more testing required with my rifles.</p><p> </p><p>*************************************************************</p><p> </p><div style="text-align: left"><span style="font-family: 'Arial'"><span style="font-size: 12px"><span style="color: darkred"><strong>Thank you for your enquiry of 7/12/2011 with regard to reloading using ADI Sporting</strong></span></span></span></div> <div style="text-align: left"><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>powders.</strong></span></span></span></div> <div style="text-align: left"><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>ADI propellants have a built-in technology which provides superb ballistic thermal</strong></span></span></span></div> <div style="text-align: left"><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>insensitivity. The change in velocity over the temperature range of -0°C to 50°C is</strong></span></span></span></div> <div style="text-align: left"><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>generally less than 30 fps. Unfortunately, we have no data measured in the particular</strong></span></span></span></div> <div style="text-align: left"><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>firearms you mention: we perform our testing using test barrels in a controlled,</strong></span></span></span></div> <div style="text-align: left"><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>laboratory environment. The components used will also effect the ballistic thermal</strong></span></span></span></div> <div style="text-align: left"><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>insensitivity.</strong></span></span></span></div> <div style="text-align: left"><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>Extreme caution should be taken and loads should be worked up accordingly. Refer to</strong></span></span></span></div> <div style="text-align: left"><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>our website at <a href="http://www.adi-powders.com.au" target="_blank">www.adi-powders.com.au</a> or our 5</strong></span></span></span><span style="font-family: 'Arial'"><span style="font-size: 9px"><span style="color: darkred"><strong>th </strong></span></span></span><span style="font-family: 'Arial'"><span style="font-size: 12px"><span style="color: darkred"><strong>edition handloaders' guide for more</strong></span></span></span></div> <div style="text-align: left"><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>information, warnings and reloading safety.</strong></span></span></span></div><p><span style="font-size: 12px"><span style="font-family: 'Arial'"><span style="color: darkred"><strong>We thank you for using ADI Sporting Powders.</strong></span></span></span></p></blockquote><p></p>
[QUOTE="Topshot, post: 584346, member: 13285"] I contacted ADI who make this stuff. This is the reply that I got below, for what it is worth. I do know that they test in 24 inch barrels so that may have some effect? My results with my rifle seem to indicate a change of 25 fps so this is within the range that they state but over a smaller temperature range. It is interesting to see that they start their testing at -0 degrees. Strange things happen at the freezing point of water so a step change at this temperature might also be possible? Looks like more testing required with my rifles. ************************************************************* [LEFT][FONT=Arial][SIZE=3][COLOR=darkred][B]Thank you for your enquiry of 7/12/2011 with regard to reloading using ADI Sporting[/B][/COLOR][/SIZE][/FONT] [SIZE=3][FONT=Arial][COLOR=darkred][B]powders.[/B][/COLOR][/FONT][/SIZE] [SIZE=3][FONT=Arial][COLOR=darkred][B]ADI propellants have a built-in technology which provides superb ballistic thermal[/B][/COLOR][/FONT][/SIZE] [SIZE=3][FONT=Arial][COLOR=darkred][B]insensitivity. The change in velocity over the temperature range of -0°C to 50°C is[/B][/COLOR][/FONT][/SIZE] [SIZE=3][FONT=Arial][COLOR=darkred][B]generally less than 30 fps. Unfortunately, we have no data measured in the particular[/B][/COLOR][/FONT][/SIZE] [SIZE=3][FONT=Arial][COLOR=darkred][B]firearms you mention: we perform our testing using test barrels in a controlled,[/B][/COLOR][/FONT][/SIZE] [SIZE=3][FONT=Arial][COLOR=darkred][B]laboratory environment. The components used will also effect the ballistic thermal[/B][/COLOR][/FONT][/SIZE] [SIZE=3][FONT=Arial][COLOR=darkred][B]insensitivity.[/B][/COLOR][/FONT][/SIZE] [SIZE=3][FONT=Arial][COLOR=darkred][B]Extreme caution should be taken and loads should be worked up accordingly. Refer to[/B][/COLOR][/FONT][/SIZE] [SIZE=3][FONT=Arial][COLOR=darkred][B]our website at [URL="http://www.adi-powders.com.au"]www.adi-powders.com.au[/URL] or our 5[/B][/COLOR][/FONT][/SIZE][FONT=Arial][SIZE=1][COLOR=darkred][B]th [/B][/COLOR][/SIZE][/FONT][FONT=Arial][SIZE=3][COLOR=darkred][B]edition handloaders’ guide for more[/B][/COLOR][/SIZE][/FONT] [SIZE=3][FONT=Arial][COLOR=darkred][B]information, warnings and reloading safety.[/B][/COLOR][/FONT][/SIZE][/LEFT] [SIZE=3][FONT=Arial][COLOR=darkred][B]We thank you for using ADI Sporting Powders.[/B][/COLOR][/FONT][/SIZE] [/QUOTE]
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Retumbo - Powder temp V's velocity
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