Reloading powder recommendations for 7mm REM MAG, 30-06, 300 WIN MAG, and 375 H&H MAG

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Omenator

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Reloading powder recommendations for 7mm REM MAG, 30-06, 300 WIN MAG, and 375 H&H MAG

I'm just starting reloading and I'm looking for recommendations for powder for these cartridges:
7mm REM MAG
30-06 (I shoot likely triple the amount of 30-06 as the others combined)
300 WIN MAG
375 H&H MAG (new to me, looking to load lighter bullets (235 to 270 grn) as I'm going to be using for deer and moose)

I did some research, but there is a huge amount of data to go through and I was getting "paralysis by analysis". I'm trying to select which powder I should by that will be usable for as many of the cartridges as I am planning on reloading. From my research, I should be able to get by with only stocking two or three types of powder (for now). I'm thinking the 7mm REM MAG and 300 WIN MAG will have no problem sharing the same powder, the 30-06 will likely work with the same powder as the MAGs, but it may not be optimal. I'm pretty sure the 375 H&H MAG will be needing it's own type of powder.
I'm thinking I can get by with Reloader 15, 19 and 22. I may swap out the Reloader 19 for IMR 4350 (specifically for using in the 30-06). One data point I'm having trouble with is trying to gauge the availability and relative cost of the powders in Canada.
I only have one reloading manual at the moment, SPEER 13th Ed. that came with an old unused RCBS reloading set I got. As I'm not shooting any SPEER bullets, I'm not sure how valid that data is.
 
If you want a powder that will work in all four cartridges, get some IMR-4350. It may not be the most accurate powder in any of your rifles, but it is suitable to use in all four cartridges.
 
According to my notes (I'll have to re-check them) these are a few of the powders that cover a pretty wide range.

Win.760
4831
4895
4064
4320
4350
4895
Varget
BL-C (2)
TAC
Reloder 15
 
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Omenator said:
I'm just starting reloading and I'm looking for recommendations for powder for these cartridges:
7mm REM MAG
30-06 (I shoot likely triple the amount of 30-06 as the others combined)
300 WIN MAG
375 H&H MAG (new to me, looking to load lighter bullets (235 to 270 grn) as I'm going to be using for deer and moose)

I did some research, but there is a huge amount of data to go through and I was getting "paralysis by analysis". I'm trying to select which powder I should by that will be usable for as many of the cartridges as I am planning on reloading. From my research, I should be able to get by with only stocking two or three types of powder (for now). I'm thinking the 7mm REM MAG and 300 WIN MAG will have no problem sharing the same powder, the 30-06 will likely work with the same powder as the MAGs, but it may not be optimal. I'm pretty sure the 375 H&H MAG will be needing it's own type of powder.
I'm thinking I can get by with Reloader 15, 19 and 22. I may swap out the Reloader 19 for IMR 4350 (specifically for using in the 30-06). One data point I'm having trouble with is trying to gauge the availability and relative cost of the powders in Canada.
I only have one reloading manual at the moment, SPEER 13th Ed. that came with an old unused RCBS reloading set I got. As I'm not shooting any SPEER bullets, I'm not sure how valid that data is.
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That Speer manual is pretty good. I use it for my brother in laws 7mm reloads I do for him. Focus on bullet weight and type, less on brand. If you haven't gone to wholesale yet, they have the reloader powders you listed. I just picked up some reloader 22 to try in his 7mm. Before that, I have had good luck with imr 7828 in his 7mm with 150 grain barnes.
 
I picked up alliant reloader 22 from WSS as they had it in stock and it was 10% off. Looking forward to ~50 cent reloads for for 7mm remington magnum, as I got my bullets (500 hornday 139 gr BTSP) for ~$27 with hornady's get loaded promo when I ordered my press.
 
IMR 4350 and IMR 4831 would be my choices if I was trying to keep to a minimum number of powders. But you might not get lucky with loads your rifles like. Hell, you could easily end up with 4 different powders to feed all 4.
 
Looking the responses, it seems RL-22, IMR 4831, and IMR 4350 seem commonly recommended.
I also found this powder burn rate chart, seems to me there are lots of powders that are pretty close in burn rate, I'm just trying to select ones which are more commonly used so I don't have as hard of a time finding powders. It seems I'd do fine sticking with the IMR, Hodgdon H, and Alliant Reloder series powders.
 
I have tried a few powders with my 7mm MAG and my rifle seems to like my H1000 loads of 67 grains and 150g Spitzers. My old Parker Hale doesn't like to accurately push heavier bullets.
 
Chose a bullet weight you desire for each rifle.
Use either Nosler or Sierra for the their most accurate loads/powder and use that as a starting point.
It makes little difference if you are using lead core bullets. Using Barnes bullets . . . consult the Barnes manual.
The .30-06 can be loaded with bullets from 110 to 220 and everyone might favour a particular powder.
 
The beauty and fun of reloading is building the "BEST" load for a rifle. Trying to find one best powder for those four cartridges will result in 1-2 good loads and 2-3 marginal ones.

30-06 H4350, 7mm & 300 mag Reloder 22 and I'm not sure on the 375 but Varget or Reloder 15...
 
stubblejumper said:
If you want a powder that will work in all four cartridges, get some IMR-4350. It may not be the most accurate powder in any of your rifles, but it is suitable to use in all four cartridges.
Click to expand...

I agree. A slower powder would be better in the 7mm, and likely the .300, but 4350 will work in all.

Omenator said:
I'm thinking I can get by with Reloader 15, 19 and 22.
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Where are you finding Reloader powders? I haven't seen any for ages locally. I would make sure of a steady supply before making decisions on what to burn. I've given up on using any Alliant products and have been switching to powders that are more readily available.
 
9.3mauser said:
Where are you finding Reloader powders? I haven't seen any for ages locally. I would make sure of a steady supply before making decisions on what to burn. I've given up on using any Alliant products and have been switching to powders that are more readily available.
Click to expand...

Wholesale sports got what seems like a semi load in. Src has some as well. Not as many as wholesale but it is coming.
 
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