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
Load work up...seating depth test first OR charge weight first?
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="J E Custom" data-source="post: 1406088" data-attributes="member: 2736"><p>More good questions.</p><p></p><p>First. Most good reloading manuals will show where a compressed load starts with that powder it will say xxxC for grains and that it is compressed. Armed with that Information, I then look at the case volume to the base of the neck. (Usable powder volume with that powder simply by filing the case with the powder I want to use to the shoulder neck junction. as pored, I know that I can get more powder using a drop tube if I have to, and if I half to cut the powder charge I have a basic 100% number of grains for that powder. (Different powders will require different capacities based on size and shape)</p><p></p><p>Now that I have a good volume 100% density with that particular powder in my case, I can evaluate if it is to slow or reaches maximum velocity at or near 100% case density. This will also be an indication of other powders volume needs. The reason I like densities of 98 to 100 % is that normally the SDs are better/more consistent. Also loads with less than 85% can be tricky (Another word for dangerous). </p><p></p><p>As to brisance selection, it is mostly experience rather than a science</p><p>but again, the good reloading manuals will have the primer that they recommend, or that they tested with the load, The brisance chart will tell you where that primer falls in the chart so you can substitute with in range of the tested primer. I would warn anyone not to substitute</p><p>a hotter primer without reducing the powder charge. If you switch brands, and it is very close in brisance to the tested primer I would still recommend reducing the charge by 1/2 grain.</p><p></p><p>Lots of new reloaders try to use one primer for everything and have problems. The hottest primer will not always get the best results and some of the big cartridges that hold 70 to 80 grains often have much better SDs when a non magnum primer is used. In extreme cold sometimes a magnum primer may be necessary, so leave all of your options open. cartridges that hold over 90 grains will normally do better with a magnum primer. Cases with 110 grains to 145/150 will need the hottest primer available. </p><p></p><p>So for those that have not been loading long, I recommend going by the loading manual for everything, The manual are normally conservative and will for the most part keep you out of trouble.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1406088, member: 2736"] More good questions. First. Most good reloading manuals will show where a compressed load starts with that powder it will say xxxC for grains and that it is compressed. Armed with that Information, I then look at the case volume to the base of the neck. (Usable powder volume with that powder simply by filing the case with the powder I want to use to the shoulder neck junction. as pored, I know that I can get more powder using a drop tube if I have to, and if I half to cut the powder charge I have a basic 100% number of grains for that powder. (Different powders will require different capacities based on size and shape) Now that I have a good volume 100% density with that particular powder in my case, I can evaluate if it is to slow or reaches maximum velocity at or near 100% case density. This will also be an indication of other powders volume needs. The reason I like densities of 98 to 100 % is that normally the SDs are better/more consistent. Also loads with less than 85% can be tricky (Another word for dangerous). As to brisance selection, it is mostly experience rather than a science but again, the good reloading manuals will have the primer that they recommend, or that they tested with the load, The brisance chart will tell you where that primer falls in the chart so you can substitute with in range of the tested primer. I would warn anyone not to substitute a hotter primer without reducing the powder charge. If you switch brands, and it is very close in brisance to the tested primer I would still recommend reducing the charge by 1/2 grain. Lots of new reloaders try to use one primer for everything and have problems. The hottest primer will not always get the best results and some of the big cartridges that hold 70 to 80 grains often have much better SDs when a non magnum primer is used. In extreme cold sometimes a magnum primer may be necessary, so leave all of your options open. cartridges that hold over 90 grains will normally do better with a magnum primer. Cases with 110 grains to 145/150 will need the hottest primer available. So for those that have not been loading long, I recommend going by the loading manual for everything, The manual are normally conservative and will for the most part keep you out of trouble. J E CUSTOM [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Load work up...seating depth test first OR charge weight first?
Top