Powder rates

It would seem that actual "reading" is becoming a lost art.....more's the pity.

Burn rate charts are very easy to find. But they also vary from source to source, so one must be cautious.

Regards, Dave.
 
Generally they don't mention how big the gaps are between two adjacent powders. There could be next to no difference between two powders but then there could be a significant difference between another two. Other than a curiosity or to see what powders are close to look for alternate load data I don't see a powder burn rate chart as being necessary for reloading. It's not like people are making up their own load data based on a "close enough" powder on the chart. Or at least I hope not o_O

As for reading I find the opposite. More people are incredibly worried about things mentioned in manuals that really don't matter. People worry about their OAL being the tiniest bit off from the manual when in reality they should probably just be seating to the cannalure. Several times I've seen people post pics of loaded ammo where the cannalure is 1/4" above the case mouth because that's the OAL the manual told them to use. Others think that if you seat the bullet .010" further in than the manual says the pressure will spike instantly to 300% and blow up the rifle.
 
Totally agree !
LUTNIT said:
Generally they don't mention how big the gaps are between two adjacent powders. There could be next to no difference between two powders but then there could be a significant difference between another two. Other than a curiosity or to see what powders are close to look for alternate load data I don't see a powder burn rate chart as being necessary for reloading. It's not like people are making up their own load data based on a "close enough" powder on the chart. Or at least I hope not o_O

As for reading I find the opposite. More people are incredibly worried about things mentioned in manuals that really don't matter. People worry about their OAL being the tiniest bit off from the manual when in reality they should probably just be seating to the cannalure. Several times I've seen people post pics of loaded ammo where the cannalure is 1/4" above the case mouth because that's the OAL the manual told them to use. Others think that if you seat the bullet .010" further in than the manual says the pressure will spike instantly to 300% and blow up the rifle.
Click to expand...
 
I asked the question out of curiosity or to see what powders are close to look for alternate load data.
I do know the manuals I have and read do contain a lot of info but they all differ.
As for some of the comments about reading, as my father said "If you don't have anything good to say then be quite."
Ron
 
OctaRon1 said:
I asked the question out of curiosity or to see what powders are close to look for alternate load data.
I do know the manuals I have and read do contain a lot of info but they all differ.
As for some of the comments about reading, as my father said "If you don't have anything good to say then be quite."
Ron
Click to expand...


Even then, you wouldn't get what you're looking for.

READ/Google

Just because powders have similar burn rates does not mean they can use interchangeable data. It only means they MIGHT be suitable for specific uses.
 
This link shows the powders from a burn rate point of view if you use HODGDON h ttp://www.hodgdon.com/burn-rate.html if that's what your looking for..
 
A powders relative burn rate will change depending upon other things, things like pressure, and temperature.

Burn rate guides are relative to the conditions upon which the data was gathered.

Even changing to a differing lot of a given powder could change its placing in any of the published lists.

That's why every list is slightly different.
 
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I'm a dad and I say if you dont want answers you dont like, don't ask questions on the internet ;)

OctaRon1 said:
I asked the question out of curiosity or to see what powders are close to look for alternate load data.
I do know the manuals I have and read do contain a lot of info but they all differ.
As for some of the comments about reading, as my father said "If you don't have anything good to say then be quite."
Ron
Click to expand...
 
LUTNIT said:
------------As for reading I find the opposite. More people are incredibly worried about things mentioned in manuals that really don't matter. People worry about their OAL being the tiniest bit off from the manual when in reality they should probably just be seating to the cannalure. Several times I've seen people post pics of loaded ammo where the cannalure is 1/4" above the case mouth because that's the OAL the manual told them to use. Others think that if you seat the bullet .010" further in than the manual says the pressure will spike instantly to 300% and blow up the rifle.
Click to expand...

Excellent post!
So many times I have stated on these threads that any stated COAL is a completely useless figure. Yet it is probably the most often quoted and asked about, of any subject on reloading. And like you say, too many reloaders think they have to go exactly by what their manual states, or the gun might, "Blow up in their face!"
When I reply to such a question my answer is always the same; seat it at least a half calibre into the case and if the bolt will close, shoot it. If it won't go in your magazine and you want to use the magazine, seat it deep enough to work.
 
I found a seating depth that works for my guns, and that depth is where I locked in the seating die. I just do a few random checks with the calipers when I'm done a batch, but I check them against a note I put in my manual, not the data that came with the manual.
 
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