300wm recipes.

[Damo300]

Looking for anyone throwing 180gr around the 3100fps mark.

I using Sierra 180gr SPBT.

What powder are you using?
Best I can get out of AR2217 is 2900, and that's almost compressed.
It is tac driving, but I would like it quicker. Factory 180gr federals are flinging at 3100.


The ADI chart shows figures of 2700fps with 2209, but I can get that out of an actual 308.

What's your goto recipe for a fast 300wm load?


Cheers.

[Wapiti]

Firstly Damo, congrats on your calibre choice.

What is your powder weight for 2217? Compressing the load is not a problem with the 300 and this powder.
Are you well versed on pressure signs? If so, you have a ways to go.
In my rifles, I find the ADI data (and uncle Nicks) quite conservative.
I have found 2213SC is awesome for 300WM, my 3 love it, strangely it is the number-1 accuracy powder. I find that more important than ultimate speed.
Better to still be crapping on 30-06 speeds, but at mild pressures. Components last so much longer.

A mate has easily gotten 3100 plus with 2225/180gn Woodleighs, and easily 3000 with 200 grainers, from a 24" barrel in a HS Precision rifle.
However, the recoil of this powder is much more noticeable.

I went to 300RUM to see what if any benefits of getting 250-350fps more easily, but then struck the issue of the speed overwhelming projectile construction in everything but solid copper, using 100gns or more of 2217. 150gn'ers easily going over 3,500 and 180's mid 3,300fps from a 26" barrel. And a Fed 215 Magnum primer, which can be hard to get. 2225 was unbelievably severe in recoil acceleration, my mates 416 RM felt easily less. Crazy.

[Damo300]

Thanks wapiti.
I love 30cal.
I have the 24inch t3x super varmint.
Beautiful rifle to shoot.
One of those purchases that you can confidently say is worth every cent, and some.

Im only a newbe to reloading in a sense. I tend not to veer outside the lanes I've been shown. That all comes later with experience.

I am up to 80.1gr of 2217 @ 2990fps.
The pill just touches the powder when seating.
No signs of overpressure that I can see.
I would consider myself semi competent in understandimg pressure signs, however still learning all the time. Never one to say I know everything and always trying to soak info off anyone who wants to talk about it.

I am seating to mag length too.
Lands are almost 5mm further out from memory.
I didn't bother working back because it won't fit in the magazine, and I'm not really a target shooter, although I don't mind a few shots with the boys in a bit of friendly competition.... haha.

Was thinking of dropping to 2213sc but if I can jam more 2217 in, I will, just don't think I'll get the extra 200fps I'm looking for is all.

[deye243]

Get a Waters Rifleman 300 Winchester Magnum magazine then you will be able to seat your projectile further out and use the correct amount of 2217 and 2225 .
Or get the single shot adapter I virtually use all my long range rifles single shot because you're a long way back you've got all the time in the world to load another round if need be

[Damo300]

Get a Waters Rifleman 300 Winchester Magnum magazine then you will be able to seat your projectile further out and use the correct amount of 2217 and 2225 .
Or get the single shot adapter I virtually use all my long range rifles single shot because you're a long way back you've got all the time in the world to load another round if need be

Deye243.
Thank you for that.

Due in may. I'll get onto them.
Get some 2225 as well.