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
RL-17 vs H4350 and temperature variance
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="lloydsmale" data-source="post: 754143" data-attributes="member: 41442"><p>ive been loading with re22 or mrp (same powder) for over 30 years. Ive also used a whole lot of re19 and 25. Ive shot them in 100 degree weather and up here in the north shot them in 0 degree weather and have never seen a swing over 75fps with any of them. Ill also add that ANY powder is somewhat temp sensitive. NONE will give you the exact same velocitys in 0 weather as they will in 100 degree weather. Even with powders like h4350 you will see sometimes 50 fps differnce. Alot like lefty7stw said is due to the fact that cold makes things shrink. Put a nice warm shell out of your pocket in a barrel thats been sitting out in below zero temps all day and ill guarantee you that no matter what powder is used the velocity will be a bit differnt then if the barrel was warm. Personaly i think most of this adveritising the powder manufactures do telling you there powders are less sensitive to temps is just about the same as them telling you there new super duper bullet is what you have to pay 3 times more for because last years new super duper bullet will now bounce off of deer. Or you need a 2 buck a piece bullet to shoot small groups when sierras have been wining long range and bench competitions for decades.</p></blockquote><p></p>
[QUOTE="lloydsmale, post: 754143, member: 41442"] ive been loading with re22 or mrp (same powder) for over 30 years. Ive also used a whole lot of re19 and 25. Ive shot them in 100 degree weather and up here in the north shot them in 0 degree weather and have never seen a swing over 75fps with any of them. Ill also add that ANY powder is somewhat temp sensitive. NONE will give you the exact same velocitys in 0 weather as they will in 100 degree weather. Even with powders like h4350 you will see sometimes 50 fps differnce. Alot like lefty7stw said is due to the fact that cold makes things shrink. Put a nice warm shell out of your pocket in a barrel thats been sitting out in below zero temps all day and ill guarantee you that no matter what powder is used the velocity will be a bit differnt then if the barrel was warm. Personaly i think most of this adveritising the powder manufactures do telling you there powders are less sensitive to temps is just about the same as them telling you there new super duper bullet is what you have to pay 3 times more for because last years new super duper bullet will now bounce off of deer. Or you need a 2 buck a piece bullet to shoot small groups when sierras have been wining long range and bench competitions for decades. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
RL-17 vs H4350 and temperature variance
Top