All things being equal, heaverier the bullet the slower the powder?? One would think that I would know, but I never chose a powder except by using established data. Wanna try something, meby. Depends on the input this thread generates. One hears things but not comfortable unless I can verify with those who know.ie the denizens of this forum, except for me of course.
Thanks
LASER
If you get a pc of loading software yo ucan look and see before you do.
You could also tell us what you are thinking about instead of "theory".
Did not want to pester. All the info I got was from the tactical guys and at least several years old. This is not really a dead nuts super accuracy type question. Want to avoid by a good margin the entire transonic dynamic. The "build" is a 308 tite neck chambered for 185 Berger's. 28/30 inch 11 twist Brux barrel. To be screwed on my Stiller lr bench gun. Did it the custom die two reamer way. Never fooled with anything but 168's in a 10 twist factory gun. Varget worked good.Had several real good shooting factory guns. Big hole at a hundred sometimes bla bla bla. Thought something like H1000 with Magnum primers...? Want to shoot steel at 1K, among other things. PLEASE DO NOT TELL ME TO BUILD A 300 WIN MAG. This is a dual purpose toy.
Thanks
LASER
for the input. Bbl not done yet. As for COAL I'm guessing that I will start out with a jamb and have at it.try rl15 , MAYBE 17 WITH THE 185.
the mils best load was with a smk 175 and rl15.
atleast look at the numbers.
what is your COAL?
for the input. Bbl not done yet. As for COAL I'm guessing that I will start out with a jamb and have at it.
I was hesitant to go down this path on this forum.Sorta thought heavier bullet would be better at the transonic thing. I was sent down this path by a long time Palma shooter. If it is ok to post this stuff here I will get back to it when I get the bbl. Got bullets,Lapua brass that I can't turn untill I get the chamber, and a neck turner. I will pick this thread up when I get the bbl and dies. Already did learn several somethings. What about magnum primers? Saw mention of them someplace, I think.
Thanks again,
LASER
When looking at a powder burn rate chart, the one I saw had powders listed faster to slower, is the progression linnear and in baby steps? The reason that I am asking is that the published data for what I am planning may be older than some of the newer powders. Thought that a newer itteration mite perform better.
Thanks for your reply, Sir./
LASER
Thought as much,hence the original post. I have heard bogus statements from"experienced, supposidly knowlegeble" individuals,"primers are all the same' as an example. You opened my eyes to what presumably are some of the factors in the internal ballistics equasion. I have none of what it takes to go down that path of discovery. One reason that this forum is so good for me. Where I was going in my mind: The optimum bbl twist rate was given to me by the maker.My thinking is long barrel, slow powder heavy bullet, is why I asked about burn rates in the first place.No
IMO if two powders are only a few "steps" apart you can CAREFULLY make safe extrapolations but please bear in mind a few things.
#1, different brands/numbers of powders will react differently to different primers. There are primer/powder combinations that you'll never see in a reloading manual. An example will be Federal 205's and 700X powder.
#2, "too light loads" can be more dangerous than heavy loads! I've never experienced "detonation"but have heard enough about it that it scares me.....and I HAVE collapsed cases and leaked gases in spectacularly weird and wonderful ways. WEAR THOSE SAFETY GLASSES!
#3, powders do not all "progress" the same as you work up. For instance, while Varget _works_ and may be listed in your manual to push heavy bullets in your 22-250, it will pressure out and wreck your cases long before reaching the velocities produced by say H4350 or RL17..... This is why "Max velocities" are listed for the different powders.....they don't just rise in a gentle, predictable fashion, in short, it takes a LOT of testing to establish combinations which produce safe, linear, predictable loading curves.
