Load Data Question

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Minuteman
Aug 30, 2012
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I am looking for any kind of load data information for vihtavuori n150 for 30-06 using 185 gr. bullets (berger hybrids). Any information, at least for a starting load, is appreciated. Also, any reviews on this powder would be appreciated as well.
 
Re: Load Data Question

Killer,

We show a starting charge of 44.4 grains of N150 with our Scenar 185, working up to a maximum of 50.3 grains. Starting velocity is a bit under 2,300 fps, while the top end goes up to about 2,550 fps. With their similar construction, I'd suggest this would be a good starting point for the Berger 185 Hybrids as well. Just start at the bottom load and work up as pressure signs allow, and you'll do just fine. The top load shown is also the listed accuracy load for this bullet weight, so it should be a promising powder to work with in this combination.

Incidentally, our most current loading data can always be found online at www.lapua.com, under the pull down menu for "reloading." Hope that helps!
 
Re: Load Data Question

Thank you very much, that helps alot. What is your take on this particular powder, is it temp sensitive, is this a good accurate powder? I also plan on trying it out in my 6.5x284 with 140 gr. bergers as well, would you say that this powder would be good for that application as well?
 
Re: Load Data Question

Exceptionally clean burning powder, good temperature sensitivity and gives both good velocity and accuracy in this cartridge. The velocity issue, however, is variable from one cartridge to another, just as it is with any powder; this is a matter of selecting a powder with the correct burning rate for the cartridge you're using. The 6.5x284 you mention, for example, will be better served by a somewhat slower burning powder. Possibly N160, N165 or even N170 with some bullet weights. Think of this as a sliding scale, and the powder sped needs to be matched witht he case capacity and bullet weight you're using. There is, unfortunately, no such thing as a "one size fits all" powder.
 
Re: Load Data Question

This may be a wierd or dumb question but is there some type of formula in determining the proper burn rate/powder for a given cartridge/bullet weight or is this just one of those things thats just kind of a hit or miss situation?
 
Re: Load Data Question

Not exactly hit or miss, but you'll get a feel for it after you've been loading for a while. Basic rule is, larger capacity cases generally require slower burning powders, smaller capacity cases favor the faster burning powders. Even within these ranges, you'll have several different powders that should give good results, so it will need to be refined a bit further. Within a given case, lighter bullets are better served by faster powders, while the heavier bullets do best with slower powders.

Take a look at a good reloading manual (ALWAYS the FIRST piece of reloading equipment you should buy!) and you'll start to see how all this relates. Vitually all manuals will also have burn rate charts showing the relative quickness of various powders, rated from fastest to slowest. That's the single best investment in any pice of reloading equipment you can make.