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
Long Range Hunting & Shooting
Hodgen powder issues
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="Down Under Hunter" data-source="post: 297939" data-attributes="member: 8486"><p>"READ THIS "</p><p></p><p></p><p>G'day Simon, </p><p> Below is a table of the Lot history on AR2217 propellants that was mentioned on the "Longrange Forum", information that maybe relevant to you, there is nothing that stands out to give problems, even at the high +52 C temp testing, as I thought that this maybe the cause at this time of the year in the US (their summer), as we compare every lot back to our reference there is not much change, so again I cannot say what has caused this problem in the US. If any lot that may have caused problems would be the AR2217 lot MEM4466 and we are now using this as our Reference which was a bit higher in velocity and chamber pressure, but not much. If any thing the lots MEM4508 & MEM4606 were on the slow side, which one would increase the charge weight. Our Spec's are that we should be +- 35 ft/s and not above +1500 Psi when compared to our Reference Lot. </p><p>Sorry I cannot be more helpful. Also apologies in the delay in responding to your request. </p><p></p><p>Regards and good shooting </p><p></p><p>Ken </p><p></p><p>Lot No. Ref. Lot Used Bulk Density (g/ltr) Moisture </p><p>(% H2O) Velocity </p><p>Press </p><p>@ +21º C Velocity </p><p>Press </p><p>@ -15ºC Velocity </p><p>Press </p><p>@ +52º C </p><p> </p><p>MEM3811 956 0.97 V = -20 ft/s </p><p>P = +100 Psi V = +10 ft/s </p><p>P = +1700 Psi V = -60 ft/s </p><p>P = -2100 Psi </p><p>MEM4466 3811 951 0.74 V = +30 ft/s </p><p>P = +800 Psi V = +20 ft/s </p><p>P = -200 Psi V = +30 ft/s </p><p>P = +100 Psi </p><p>MEM4508 3811 947 0.83 V = -20 ft/s </p><p>P = -3000 Psi V = 0 ft/s </p><p>P = -2300 Psi V = +10 ft/s </p><p>P = -1900 Psi </p><p>MEM4606 3811 959 0.79 V = -10 ft/s </p><p>P = -2100 Psi V = 0 ft/s </p><p>P = -400 Psi V = -10 ft/s </p><p>P = -2300 Psi </p><p>MEM4642 4466 952 0.98 V = -30 ft/s </p><p>P = -600 Psi V = -30 ft/s </p><p>P = -900 Psi V = -30 ft/s </p><p>P = 1200 Psi </p><p> </p><p> </p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p>Ken Melgaard</p><p>Technical Officer</p><p>Land & Joint Systems </p><p>Thales Australia</p><p>Private Bag No 1, Mulwala, NSW 2647, Australia</p><p>Tel: +61 3 5742 2476 | Mob: +61 429 016 832 | Fax: +61 3 5742 2438</p><p><a href="mailto:ken.melgaard@thalesgroup.com.au">ken.melgaard@thalesgroup.com.au</a> | <a href="http://www.thalesgroup.com.au" target="_blank">redirect...</a> </p><p></p><p></p><p>"WEBSTERS WOOD STREET WAREHOUSE" <WEBSTERSFURNITURE@bigpond.com> </p><p>11/07/2009 04:51 AM </p><p> To <ken.melgaard@thalesgroup.com.au> </p><p>cc </p><p>Subject Question for ADI re 2217 (H1000) and 2218 (50BMG ) </p><p></p><p> </p><p></p><p> </p><p></p><p></p><p></p><p>Thttp://www.longrangehunting.com/forums/f17/hodgen-powder-issues-44114/ </p><p> </p><p>Thanks so much for your help. </p><p> </p><p>There are alot of friends that would love you to take a look at the thread and give some feedback. </p><p> </p><p>Hope it makes sense. </p><p> </p><p>Cheers </p><p> </p><p>Simon </p><p>DUH (LRHF)</p></blockquote><p></p>
[QUOTE="Down Under Hunter, post: 297939, member: 8486"] "READ THIS " G'day Simon, Below is a table of the Lot history on AR2217 propellants that was mentioned on the "Longrange Forum", information that maybe relevant to you, there is nothing that stands out to give problems, even at the high +52 C temp testing, as I thought that this maybe the cause at this time of the year in the US (their summer), as we compare every lot back to our reference there is not much change, so again I cannot say what has caused this problem in the US. If any lot that may have caused problems would be the AR2217 lot MEM4466 and we are now using this as our Reference which was a bit higher in velocity and chamber pressure, but not much. If any thing the lots MEM4508 & MEM4606 were on the slow side, which one would increase the charge weight. Our Spec's are that we should be +- 35 ft/s and not above +1500 Psi when compared to our Reference Lot. Sorry I cannot be more helpful. Also apologies in the delay in responding to your request. Regards and good shooting Ken Lot No. Ref. Lot Used Bulk Density (g/ltr) Moisture (% H2O) Velocity Press @ +21º C Velocity Press @ -15ºC Velocity Press @ +52º C MEM3811 956 0.97 V = -20 ft/s P = +100 Psi V = +10 ft/s P = +1700 Psi V = -60 ft/s P = -2100 Psi MEM4466 3811 951 0.74 V = +30 ft/s P = +800 Psi V = +20 ft/s P = -200 Psi V = +30 ft/s P = +100 Psi MEM4508 3811 947 0.83 V = -20 ft/s P = -3000 Psi V = 0 ft/s P = -2300 Psi V = +10 ft/s P = -1900 Psi MEM4606 3811 959 0.79 V = -10 ft/s P = -2100 Psi V = 0 ft/s P = -400 Psi V = -10 ft/s P = -2300 Psi MEM4642 4466 952 0.98 V = -30 ft/s P = -600 Psi V = -30 ft/s P = -900 Psi V = -30 ft/s P = 1200 Psi Ken Melgaard Technical Officer Land & Joint Systems Thales Australia Private Bag No 1, Mulwala, NSW 2647, Australia Tel: +61 3 5742 2476 | Mob: +61 429 016 832 | Fax: +61 3 5742 2438 [email]ken.melgaard@thalesgroup.com.au[/email] | [url=http://www.thalesgroup.com.au]redirect...[/url] "WEBSTERS WOOD STREET WAREHOUSE" <WEBSTERSFURNITURE@bigpond.com> 11/07/2009 04:51 AM To <ken.melgaard@thalesgroup.com.au> cc Subject Question for ADI re 2217 (H1000) and 2218 (50BMG ) Thttp://www.longrangehunting.com/forums/f17/hodgen-powder-issues-44114/ Thanks so much for your help. There are alot of friends that would love you to take a look at the thread and give some feedback. Hope it makes sense. Cheers Simon DUH (LRHF) [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
Hodgen powder issues
Top