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
Pressure signs/chronographing
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=".280Rem" data-source="post: 206610" data-attributes="member: 11140"><p>My load work up is simple. I check 2-3 sources. For instance, If loading for my .280, I'd look at say Nosler and Hornady. Both give very similar data for R-19 and their respective 139/140gr bullets. 57 max for Nosler at 3150 from a 26" bbl, and 57.4 for Hornady at a little over 3000 in a 24" bbl. I figure knocking off about 50-75fps from Nolsers velocity for my expectations for R-19 and 140 grain bullets because I'm shooting 24" bbl. I start a few grains under max for the given powder/bullet combo. I start at about 54 grains, and check accuracy and velocity. Supposing it's under the listed velocity given of around 3050 for the top end loads in the books, I work up. If my 54gr load is 2500fps, I may add 2 grains...if its 2850, I'll work up a grain at a time until my velocity is in the 3050-3075 range, and call it good if the accuracy is there. If not, then I try another bullet or powder and start over. Add to that now that I check Quickload, and it predicts I should be in safe pressure ranges with my loads, plus the fact that I see no outward signs of pressure and brass life is good over the last 20 years, I figure I'm good to go, even though I'm using 1 more more grain of powder than the book says is max. Differing lots of powder can account for that difference. If I change anything...brass, primer, etc, I back off about 3 grains an start over. Thats an example of how I'd work up a load.</p></blockquote><p></p>
[QUOTE=".280Rem, post: 206610, member: 11140"] My load work up is simple. I check 2-3 sources. For instance, If loading for my .280, I'd look at say Nosler and Hornady. Both give very similar data for R-19 and their respective 139/140gr bullets. 57 max for Nosler at 3150 from a 26" bbl, and 57.4 for Hornady at a little over 3000 in a 24" bbl. I figure knocking off about 50-75fps from Nolsers velocity for my expectations for R-19 and 140 grain bullets because I'm shooting 24" bbl. I start a few grains under max for the given powder/bullet combo. I start at about 54 grains, and check accuracy and velocity. Supposing it's under the listed velocity given of around 3050 for the top end loads in the books, I work up. If my 54gr load is 2500fps, I may add 2 grains...if its 2850, I'll work up a grain at a time until my velocity is in the 3050-3075 range, and call it good if the accuracy is there. If not, then I try another bullet or powder and start over. Add to that now that I check Quickload, and it predicts I should be in safe pressure ranges with my loads, plus the fact that I see no outward signs of pressure and brass life is good over the last 20 years, I figure I'm good to go, even though I'm using 1 more more grain of powder than the book says is max. Differing lots of powder can account for that difference. If I change anything...brass, primer, etc, I back off about 3 grains an start over. Thats an example of how I'd work up a load. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Pressure signs/chronographing
Top