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
Reloading
Truth about Temp. Sensitive Powders
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="MMERSS" data-source="post: 942605" data-attributes="member: 63748"><p>Welcome back!</p><p></p><p> Powder temper variance causing change to an average muzzle velocity may not be as much of a concern shooting competition as for those shooting first round cold bore while hunting. A 40 fps swing one way or the other during competition can be corrected within the first few sighter shots. Not accounting for an average velocity change can be detrimental with the success of a LR or ELR hunt.</p><p> </p><p> All powders are temperature sensitive, some more than others. Take advertising with a "grain of salt" and confirm with real results. One can reference Nosler about "truth about their claimed LRAB G1 BC numbers." As stated with lot-to-lot inconsistency with certain powders the same approach should be taken with powder temperatures and the effects on ballistics, that being shooting in varying conditions to confirm precision potential and velocities. Having a power producing less change to average velocity with an increase or decrease in temperature is important to a hunter when not accounting for this change in a ballistics solution.</p><p> </p><p> One good practice is control what you can. I was placing my ammo in coolers during the Camp Perry Nationals back in the 80's. I was young but understood the importance of not shooting ammo with temperatures in the mid 90's when I usually shot the ammo during much cooler temperatures during off mid summer afternoons. For LR to ELR hunting same principal applies. Conduct ballistics validation near temperatures expected to be encountered during hunting season. When hunting, place your ammo inside a pocket when the temperature is significantly cooler outside. Drop your Kestrel in the pocket to monitor the temperature. If the temp is too cold, move the ammo to your inside shirt pocket. If the temp is too warm move the ammo to a pocket further away from your body or place the ammo back into the gun.</p><p> </p><p> As long as precision holds, muzzle velocity change due to powder temperature variance can be accounted for both in ballistics solutions and competition sighters. The problem arises with unconfirmed effects of precision and velocities not accounted for due to temperature change with certain powders.</p></blockquote><p></p>
[QUOTE="MMERSS, post: 942605, member: 63748"] Welcome back! Powder temper variance causing change to an average muzzle velocity may not be as much of a concern shooting competition as for those shooting first round cold bore while hunting. A 40 fps swing one way or the other during competition can be corrected within the first few sighter shots. Not accounting for an average velocity change can be detrimental with the success of a LR or ELR hunt. All powders are temperature sensitive, some more than others. Take advertising with a “grain of salt” and confirm with real results. One can reference Nosler about "truth about their claimed LRAB G1 BC numbers." As stated with lot-to-lot inconsistency with certain powders the same approach should be taken with powder temperatures and the effects on ballistics, that being shooting in varying conditions to confirm precision potential and velocities. Having a power producing less change to average velocity with an increase or decrease in temperature is important to a hunter when not accounting for this change in a ballistics solution. One good practice is control what you can. I was placing my ammo in coolers during the Camp Perry Nationals back in the 80’s. I was young but understood the importance of not shooting ammo with temperatures in the mid 90’s when I usually shot the ammo during much cooler temperatures during off mid summer afternoons. For LR to ELR hunting same principal applies. Conduct ballistics validation near temperatures expected to be encountered during hunting season. When hunting, place your ammo inside a pocket when the temperature is significantly cooler outside. Drop your Kestrel in the pocket to monitor the temperature. If the temp is too cold, move the ammo to your inside shirt pocket. If the temp is too warm move the ammo to a pocket further away from your body or place the ammo back into the gun. As long as precision holds, muzzle velocity change due to powder temperature variance can be accounted for both in ballistics solutions and competition sighters. The problem arises with unconfirmed effects of precision and velocities not accounted for due to temperature change with certain powders. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Truth about Temp. Sensitive Powders
Top