Have a friend that wants me to get him his reloading necessaties for his:

25-06 win.

.308 win

.300 win mag

Bullets will more than likely be the Partitions 120g/.25 cal, 180PP for both the .308 and .300 win mag.

I came across with IMR4350 as the likely candidate. What one powder would you choose and is IMR4350 a good guess. No 2 rifles shoot the same of course but..........

thanks

I like 4831 for the 300 Win mag and that also might work well in the 25-06. I prefer H414 or 4064 for the 308.

A slow burner like IMR 4350 is good in magnums and over bored cartridges like the 243 and 25-06, but the 308 is going to need a medium burner like Varget, 748, or RL-15.

But, according to my "freebie" Winchester load guide, its possible to use 760 in all of them. But the only that really excells with that powder (that I'm aware of) is the 30-06.

You picked a tough one to optimize for one powder. RL22 and 4831 would be a good choices for the 25-06 and .300 WM. Now to make the 308 Win fit you are going to have do some compromising on all three.

yep, for sure. Think I will tell him to get both H4831 or H1000 and 4064-that should do. He doesn't shoot much annually so 8# of the H4831 and couple of pounds of 4064 should last him for some yrs. to come.

we'll see.

thanks

Listen to red_eagle. Go with 4350 for the .25-06 and the .300, but for the .308 choose Varget and then Varget, and if you need another choice, choose Varget.

I like 4831 for the 300 Win mag and that also might work well in the 25-06. I prefer H414 or 4064 for the 308.
My Dad preferred H4831 for his 25-06, and knowing my Dad, there was a specific reason he preferred it. I don't know how it would do for the other rifles, but I think it would probably be ok for the 25-06 at the very least.

Canister of powder is not that expensive.You could get away with one canister for 25-06 and the 300wm.They both like slow burning powder with bullets on the heavy end of there spectrum.308 likes a powder thats has a medium burn in general light bullets for cal.tend to like a quicker powder ,heavier bullets for cal.slower powders.This is generaly true for any caliber.I'll put it layman terms for ya others can give all the tech. help you want.The size of the case in relation to the bore to the weight or bearing surface of the bullet dictates what powedr to use.

I agree, he'll need two as a minimum. I like the Alliant powders for their ease of dispensing, clean-burning and good lot-lot consistency. My picks would be RL-22 for the big cases and RL-15 for the 308. The RL-15 will also be usable for lighter bullets and medium loads in the big rounds, as a bonus.

As a guide, the Alliant powder rough equivalents would be:

RL-15 -- Varget/4320/4895/4064
RL-19 -- 4350
RL-22 -- IMR4831
RL-25 -- H4831

I haven't tested the brand new RL-17 yet, but as the numbers suggest, it ought to fall right in the slot between 15 and 19.

Varget should work for all, but limiting oneself to one powder is a compromise at best

Varget or IMR4064 would be my pick.

You'll give up a couple hundred FPS in the larger cases, but IMR 4350 is just too slow to work well in a .308.

Or, depending on your priorities, load 4350 in them all and accept the velocity loss in the 308...

Me? I'd buy two cans.

I like the Alliant powders for their ease of dispensing, clean-burning and good lot-lot consistency. My picks would be RL-22 for the big cases and RL-15 for the 308.

I agree. I've had excellent results with Reloder 22, 25, 19, and 10x.

The guys recommending Varget or 4064 for all three don't know what they are talking about.You will loose too much velocity in the 25-06 and .300

As recommended by several knowledgeable guys here, one slow burner for the 25-06 and .300 mag. and one medium burner for the .308.

There are a a bunch to choose from from several powder mfg.

An interesting series as a read.

It didn't address the reality that even a powder suitable for the overbore cases would be a problem with accuracy in one of the cartridges, most of the time, without a bit of trial and error. Although H4831 would be a top bet.

H4895 would probably turn in good accuracy with all three, but would sacrifice the performance of the .25-06 and .300 WM to an extent that you might as well swap 'em for a .257 Roberts and a 30-06.

IMR4320 will do them well.

a fine topic and many good recommendations. I will and have mentioned to him of 2 necessary powders.

best regards,

There is no such thing as "one powder does all", nor "one bullet does all" for the 30 cals for that matter, for the listed cartridges. One powder might do very well in one but mediocre in the others. I would opt for H4350 as the better choice for those three cartridges using the heavier bullets mentioned. It will have a better pressure/velocity relationship. H4350 has been one of my all time favorites in the 25-06 for 117 and 120 gr bullets for 40 years and doesn't do too bad with the lighter 85-100 gr and while being a bit bulky for the 308 case it will go bang with 180's if compressed a bit and is almost perfect for the 300 WM with 180 gr.

While the price of powder might be high and I am notoriously cheap, you are talking about 3 different case capacities. H4350 would work nicely for the 25-06 and 300 WM, but I would use RL15 for the 308 and drop to 165 gr bullets, and go up to 200 or 220 gr in the 300 WM. A 180 gr bullet is wasting the potential of the 300 WM, too heavy a bullet is doing the same for the 308, but the 120 and H4350 is a perfect combo for the 25-06. Anything slower than H4350 in the 300 WM is basically using a high velocity, light hammer on a heavy anvil to make a horseshoe or trying to drive a spike with a tackhammer. You might get it done but you will be worn out trying. :D

'Njoy