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IMR 4831 question

 
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muleymaddness
(1081 posts)
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Aug-20-17, 
01:08 PM (MST)
"IMR 4831 question"

I have a question about the above powder. How sensitive is it to temperature change? I'm loading for my 7mm Rem Mag and found a decent loading using this powder. I'm not 100% sold on the load yet, so that's why I'm asking my question now before I continue. Should I continue using the IMR 4831 or would you go with the Hodgdon line in something like H1000 or similar?

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  Table of Contents  

 Subject   Author   Message Date   ID 
 RE: IMR 4831 q...  Millsworks      Aug-20-17   1 
  RE: IMR 4831 q...  Cahunter805      Aug-21-17   2 
   RE: IMR 4831 q...  Zeke      Aug-22-17   3 
    RE: IMR 4831 q...  NoDoe      Aug-23-17   4 
     RE: IMR 4831 q...  muleymaddne...      Sep-03-17   5 
      RE: IMR 4831 q...  mtmuley      Sep-03-17   6 
       RE: IMR 4831 q...  OchocoKid      Sep-05-17   7 

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Millsworks
(245 posts)
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Aug-20-17, 
06:08 PM (MST)
1. "RE: IMR 4831 question"

Temp sincetivity is only a factor for serious bench shooters for repeated long shooting sessions. A guy that hunts in 80-90 degree one week then 30 below the next would need be worried some.
Otherwise it is no concern for the average hunter or even most target shooters.
If it makes you feel better than sure, go for a powder that advertises all temp resistance.

That being said, 4831 is a good powder in lots of calibers. But the 7 rem. mag. would perform better with several other out there.
H1000 is one that is probably gonna be a better performer. Reloader 22 ,23, or 25 also.

Most of the new powders are a temp resistant type. But only small difference for point of impact, and even then it is gonna have to be drastic temp difference from your zero conditions. Most wouldn't notice unless shooting past 400yrds.

Hope this helps. Though some consider a half inch change in point of impact drastic.

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Cahunter805
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Aug-21-17, 
11:52 PM (MST)
2. "RE: IMR 4831 question"

What size groups are you after? What bullet and speed? H1000 is a great powder for the 7RM. Great load density and speed. Retumbo also. 4831 should be decent but velocity might be slower.

What temp was your load development in and what do you plan to be hunting in?

To some myself included I want a temp stable load or at least minimal velocity swings.

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Zeke
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Aug-22-17, 
04:35 PM (MST)
3. "RE: IMR 4831 question"

Might want to try some IMR-7977
Zeke

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NoDoe
(398 posts)
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Aug-23-17, 
04:32 PM (MST)
4. "RE: IMR 4831 question"

H4831 works good f or me. Don

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muleymaddness
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Sep-03-17, 
03:20 PM (MST)
5. "RE: IMR 4831 question"

Thanks for the replies everyone. I had a different load worked up with Bergers, so I figured I'd just check velocities and go with it based on that. I know they're different loads and not comparing apples to apples, but here is what I had loaded.

162 eld-x with the IMR 4831 was running about 2,830 fps and shooting 1/2" groups.

168 berger with the H1000 was running about 2,970 fps and shooting about 5/8" - 3/4" groups.

I decided to go with the 168 berger. I know the groups are bigger, but for some reason, I'm just more confident with it. I feel like I can just stack them in there shot after shot after shot. I feel like I could just drop down, throw the gun down on my bag, and layer them in there for as many as I need to.

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mtmuley
(4502 posts)
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Sep-03-17, 
07:56 PM (MST)
6. "RE: IMR 4831 question"

You shoulda loaded the Accubond. mtmuley

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OchocoKid
(857 posts)
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Sep-05-17, 
08:59 AM (MST)
7. "RE: IMR 4831 question"

Both 4831's are fine powders. just use them and don't worry about the flavor of the month powders.


Stay Thirsty My Friends

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