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
Norma MRP Shooters
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="parshal" data-source="post: 1213531" data-attributes="member: 605"><p>It's been a while since I've used R22 so I can't comment on the grain size difference. I've also only used one lot so can't help there either. However, I've run it over the chronograph with the same lot of reloads at 10 degree differences. Dropping 10 degrees dropped 10 fps. According to my Strelok program it's a .5% difference. I've got nothing to compare that to, though, to say whether that's good or not.</p><p></p><p>I had a conversation with the head ballistician at Swift bullets a few months ago. He told me that he's tried most all the powders out there to see how they differ in temperature sensitivity. He's conclusion was that they're all temperature sensitive no matter how they're advertised. Take that for whatever it's worth.</p></blockquote><p></p>
[QUOTE="parshal, post: 1213531, member: 605"] It's been a while since I've used R22 so I can't comment on the grain size difference. I've also only used one lot so can't help there either. However, I've run it over the chronograph with the same lot of reloads at 10 degree differences. Dropping 10 degrees dropped 10 fps. According to my Strelok program it's a .5% difference. I've got nothing to compare that to, though, to say whether that's good or not. I had a conversation with the head ballistician at Swift bullets a few months ago. He told me that he's tried most all the powders out there to see how they differ in temperature sensitivity. He's conclusion was that they're all temperature sensitive no matter how they're advertised. Take that for whatever it's worth. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Norma MRP Shooters
Top