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Temp and RH

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DairyFarmer View Drop Down
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    Posted: June 28 2016 at 8:08pm
Very interesting graphs on the Somchem site regarding reloading, the relative humidity, type of powder and temperature.
 
I don't think any of use would be loading where the RH is below 30%, but this could cause pressure to exceed maximum safety specs when using single base extrude powders. Maybe if you are running a heater?
 
Influence of Environmental Conditions on different Reload Propellants for the same calibre
http://www.somchemreload.com/news/2014/09/16/influence-environmental-conditions-different-reload-propellants-same-calibre
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Post Options Post Options   Thanks (0) Thanks(0)   Quote White Rhino Quote  Post ReplyReply Direct Link To This Post Posted: June 29 2016 at 2:48pm
Interesting, Since I do most of my reloading when the weather is bad and I cant get out side ...Like when we have a Tropical storm !!! Well to tell the truth, I dont think I ever seen the humidity down here in south Louisiana as low as 30% !!!!!! More like in the 60% range here would be dry !!!!!
We reloaded a LOT of .357 and .38 Spl the last Tropical storm we sat through... had the kid from next door show up (Child Labor....  LOL!!!)  and was bored , so we put him to de priming and resizing all the brass we had saved.... then had him prime it all, after I started weighing out loads and letting him seat projectiles ...
I think I have a picture of him resizing them on my face book page !!!

I was wanting to get Hoadie to do some reloading for me next time he comes down .....We could think of it as foreign labor then !!!  LOL!!   and it would be a chance for him to get some hands on practical learning on re loading .......
"White Rhino"

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Post Options Post Options   Thanks (0) Thanks(0)   Quote A square 10 Quote  Post ReplyReply Direct Link To This Post Posted: June 29 2016 at 7:34pm
most of us never see ideal conditions , but then most of us are not reloading for ideal conditions either - im no sniper , im just hoping to hit what i shoot at and in the order im supposed to hit them , 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DairyFarmer Quote  Post ReplyReply Direct Link To This Post Posted: June 29 2016 at 8:14pm

Kids are great when it comes to cleaning primer pockets, lubing cases and cleaning out bits of media out the flash hole after tumbling. Must be the small hands. Also they still have good eye sight so they can sort head stamps quickly. Unfortunately they have the attention span of a wet rag. 30 minutes tops.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Zed Quote  Post ReplyReply Direct Link To This Post Posted: June 30 2016 at 11:45am
That's useful information. I don't have extreme weather; so it's probably not problem for me; but worth knowing. However similar pressure problems can arise if your ammo box is left in the sun too long. Better to not load to max if your in a hot climate.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Shamu Quote  Post ReplyReply Direct Link To This Post Posted: June 30 2016 at 1:27pm
Nowadays so many loading areas are temperature (& humidity) controlled by air conditioning. I'm guessing temps in the 70's & RH of around 20% aren't going to be critical. Its an odd fact but most air conditioned modern buildings have a similar RH to a desert outdoors!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DairyFarmer Quote  Post ReplyReply Direct Link To This Post Posted: June 30 2016 at 7:45pm
Where the RH is below 30% for SB extrude you could have problems.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote White Rhino Quote  Post ReplyReply Direct Link To This Post Posted: July 01 2016 at 7:47am
I was on the way home from work yesterday and the news channel said our humidity was at 68% ...  Now that was taken in Baton Rouge ...  So its probably a little higher at my house , since I'm on the edge or the Atchafalaya basin and surrounded by swamp water !!!
as it is, I do have AC in my gun shop, but when you have people in and out especially smokers who go in and out more than a nosy spoiled child , I dont see the AC taking the moisture out the air fast enough....  But dont think I have had any problems so far ...
I do have a bunch of .45/70 thats ready to reload in the shop right now ....and I need to prep some .303 brass that Hoadie gave me and some I already had !!

Speaking off prepping brass.........
Has any of you used Pam cooking spray for a case Lubricant yet ???  I tried it on the .45/70 cases the other day and still need to try it on some necked cases when full length sizing to see if its as good or better than what they sell marked for case lube !!
I got the idea from a reloading page on FB ....  I got the store brand which was way cheaper than Pam ....

"White Rhino"

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Shamu Quote  Post ReplyReply Direct Link To This Post Posted: July 01 2016 at 9:28am
Not yet, I'm too concerned its an internet myth!
Let us know how well it works for you.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote White Rhino Quote  Post ReplyReply Direct Link To This Post Posted: July 01 2016 at 11:02am
Originally posted by Shamu Shamu wrote:

Not yet, I'm too concerned its an internet myth!
Let us know how well it works for you.


So far with the 45/70 cases its been good , but then thats not a necked case !!

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Shamu Quote  Post ReplyReply Direct Link To This Post Posted: July 01 2016 at 12:20pm
That was my thought. 7.62 milsurp cases need some serious lube to resize well.
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