Home Forums Reloading Big Game Rifles Best powder for the 270 Win??

I would really like to hear reloder 26 results for the .270 wwin.On paper it looks very good with the heavier bullets.I did contact Alliant for data on 25&26 and the company told me rl 26 should be more temperature stable than rl 25.150 nosler partitions3000 fps+ is interesting if it is as accurate as it is fast.Anybody?

Nosler 150gr PT
55grs H4831
W-W case
WLR primer
3.320" OAL
2829fps (24" barrel)

boomer, that looks great. Max load according to the Nosler manual. I may just have to try that with the 150gr. partitions I have on hand. I've been itching to go shooting, this may just give me an excuse!!!

Woe 8 year leap on this thread.

Anyway rl22 works best in my pre 64 fwt using 130 ttsx's

I am not a 270 guy. But have owned 2. And did kill deer with 3 different rifles. My good bud uses one regularly. So did his dad, before he passed. I load rounds for a 270 now. But don't use one.

Years ago I would have said R-22. Till he figured out when the thermometer plummeted a good bit, so did POI. Now it is 4831sc...

Since it's been bumped up, the new RL-16 looks promising. If it lives up to the velocity, temp stability, and copper fouling reduction, I would think it's tough to beat running monos.

My biggest ? is temp stability. I have a hard time accepting a RL powder as having any.

I use mostly H4831 unless I run into one of those 270's that seems to want a dose of nitro to tighten groups,in which case I use RL22. I will do that until I run out.

I have one of those 270's right now. It has a longish throat and does not like H4831 like my other ones do, but loves RL22 and 130 Nosler Partitions. I killed two bucks with it last year.

Temp stability aficionados will have to forgive me for my ambivalence since I have killed quite a few mule deer and whitetails in temps from the 70's down to 25 below zero using RL22 without a hiccup. Just lucky I guess.

I have loaded the case with RL25,7828, H4350, IMR4350 IMR4831,4064,RL15, H4831 ( WW II, Scottish stuff, and the present stuff). Which one works "best" depends on the rifle.

I wish I could say, after 40 years of loading the cartridge that any of these newer,miracle powders show any real ,material improvement over what I was using 30-40 years ago but in reality I have not seen it....other than some rifles preferring one powder over another in accuracy or a bump of 50-60 fps in velocity.

I am not afraid of the RL series since Ive killed BG animals continent wide with their products. I think some of the comments on here about RL 22 and others are pretty funny. The powder is similar to things like MRP, Norma 205,etc and I have noticed how much velocity it will lose in temp swings varies a lot depending on the cartridges.

I swear sometimes people look for problems because they read about it on places like this. I have seen more variation lot to lot with supposedly "temp stable "powders than I have temp swings but no one ever talks about that.

I like the 270 because its boring and I hate getting hung up on ballistic nuances.Just stuff it with your favorite powder, worry more about loading a decent hunting bullet, and go kill stuff.

If you miss because your powder changed your POI in the middle of a hunt, it's likely your own fault. Frankly I never heard of such a thing.

I started with IMR-4064 then tried IMR-4831.

There are several that work well,,have not tried any of the newer powders yet because the older ones that i have work.

I also have never been one to buy into the "temp. sensitive" thing much, if at all. I just know that he came to not like the R- 22 so I started loading the short cut for him instead.

My solution has always been to sight in my hunting rifles under the temps in which they will be used. Problem solved. I have been preaching that for YEARS now. I still burn plenty of R-15 and R-7 in cold temps. It has never been a problem.

It is my opinion, that if anything, IMR 4831 is more temp sensitive than R-22. But 4831 sc is better. According to ES figures on my chrony any way. Again, sight rifle in under hunting temps, and it is a non issue.

I do try to use a temp stable powder for dedicated target rigs that may be used in a variety of temps, but that is another story....

H4831 here....

Imr 4350

I've been playing with Re26 in my .280, and it's looking very promising. It makes velocity like crazy with 150 Partitions. It oughta work just as well in the .270.

It does....

I only use that because it's all I could find for a long time around here...

H4831 for me as well..

That always has and always will be a damn good 270 powder. Now that it's back on the shelves, it's time to stock up!!!!

I like the way you think!

southwind I know temp stability is important for very long range shooting but I wonder how many who complain about it are truly affected by it.

I have used RL22 in various 270, 7mm, and 30 caliber cartridges and shoot those rifles from summer heat to temps from 0-20 degrees, mostly here on my range and have not seen these problems. How much velocity are people losing in the "cold"? 50? 150? 250 fps?

OTOH last year a new lot of H1000 showed 100 fps less velocity than my old lot with the same charges. Fortunately I had some ammo still loaded with the old lot with me so checked it immediately.

Years back I noticed IMR4831 lost about 120 fps in the 7 Rem Mag with 140 gr bullets in cold temps but almost nothing in the 270 winchester. i still killed everything everywhere with that old 7 mag.

What really cracks me up are guys worrying about temp stability in going from 80 degrees in the summer to 30-40 in the fall......30-40 does not qualify as "cold" anywhere.....LOL. Thats just normal season to season transition.

I don't go outside unless it's at least 70!

I have hunted some pretty wide temperature ranges from sub zero up to 80F with no ill effects. I know that doesn't constitute a test but rather just my experience.

For the sake of discussion lets assume on the high side I get a 100 fps swing in velocity. For practical hunting situations that would be a difference of 1 1/4" @ 400 on your point of impact. I based that on a 270 load at 3000 fps using a 130 grain bullet. That's about a .30 moa difference.

The overwhelming majority of hunters will never know the difference.