****The best powder for a .270 winchester****


September 6, 2011, 10:34 AM
Just trying to find out what kind of powder you guys are using and obtaining the best results out of which brand and type of powder for a .270 winchester?

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Miata Mike
September 6, 2011, 10:54 AM
A guy at work swears Reloder 22 is best in his .270 Win.

September 6, 2011, 11:27 AM
Have only used H4831 and like the results. It is a popular cartridge with lots of options for it.

September 6, 2011, 11:31 AM
Hey fellow Oklahoman, I have been loading a 270 Winchester for about 33 years and my current deer hunting load is 56 grains of IMR 4831 with a Speer 130 grain boattail bullet in Winchester cases with a Remington 9 1/2 primer. Very accurate and works great for deer hunting. BW

September 6, 2011, 11:41 AM
Amen to the 4831 powder. Either Hogdon or IMR wil do fine. I grew up in Stillwater during the 50's and still have my 270.
Use the 150 for deer and the 170 gr. Barnes for Elk. The 130 is OK at close range but doesn't have enough knock down power past about 300 yds.
May you hunt with sucess, eat what you shoot and . . . Be Safe!!!

Bwana John
September 6, 2011, 12:24 PM
H4350 for 130 gr.
H4831 for 150 gr.

You can substitute H for IMR.

September 6, 2011, 12:46 PM
H4350 or IMR 4831 seem to be most popular. My rifle prefers IMR 4831. It's going to vary by rifle and bullet profile. You're going to need to experiment. I use Hornady 130gr SP as my hunting round and I tried both.

September 6, 2011, 01:07 PM
IMR 4831 works everytime for me.

September 6, 2011, 04:48 PM
I am shooting the 150 grain hornady sst. I went through a pound of IMR 4831 and could not get it to shoot a consistant pattern.

September 6, 2011, 04:50 PM
I recently worked up a handload for 130 grainers. IMR 4350 did a fantastic job.

September 6, 2011, 05:32 PM
There are quite a few powders that the .270 will like dependant on bullet weight.

I like the RL series for velocity, RL19 up to 130 gr and RL22 for heavier. IMR4350 and IMR4831 have worked great too, just not as much velocity as the RL.

H4831 is another that will work. I've only used the above powders.

September 6, 2011, 07:59 PM
WW760 works best for me. 51.5 gr. under a Sierra 130gr.Pro Hunter bullet for deer. Sub 1 MOA easy.

September 6, 2011, 08:29 PM
I used H4831sc for years with 140gr Noslers. Three years ago i switched to Reloader 22 and like it better but i also switched to 140gr SST's at the same time. That combination shoots a little better in my gun. For light bullets in the .270 win. (90-100gr) i use IMR4320.

September 6, 2011, 08:41 PM
I am shooting the 150 grain hornady sst. I went through a pound of IMR 4831 and could not get it to shoot a consistant pattern.
Just curious, what was the maximun amount of IMR4831 you used with that bullet?

September 6, 2011, 10:02 PM
I never got over 50 grains, it would not even get close to holding a pattern, so I never went up.

September 6, 2011, 10:30 PM
When I couldn't get H450 any more, I tried many powders and settled on RL22.


September 6, 2011, 11:02 PM
I am using 55gr of H4831sc......with 150gr speer BTSP..seems to group well for me...I will say that 56gr grouped equally as well...but figured I would go lighter for my wife

September 6, 2011, 11:24 PM
You really need to try several powders and bullet combinations to see which works best in your rifle. That's the fun of reloading!

September 6, 2011, 11:24 PM
I have a lot of reloading years behind the .270 win. and the best performer's have been IMR-4350, RL19, and RL22. My best of those three has been RL19 and RL22. If I had to choose between those two I would base it on availability over any other element. My reasoning is because those two delivered almost exact velocity and accuracy, and pressures appear to be in the same range.
A stout charge of one of those slow burning powders behind a 130 gr. bullet will give you 3,150 fps plus, depending on what elevation you are using them at. At 2,500' elevation I average about 3,160 fps and at 7,500' velcoity was average 3,230 fps. All of my .270 loads have been fired out of a 22" barrel, Rem. 700's and Savage 110's as well as a couple of other simular actions.

September 7, 2011, 12:32 PM
Best powder for a .270 Winchester ?
IMR 4064 PERIOD!!!!

September 7, 2011, 05:12 PM
I concur with Bwana John. For 130 -140 IMR 4350. Fro 150 grains, H4831sc.

September 7, 2011, 09:37 PM
I have nothing new to suggest only that H4831sc works well for me with 130 grainers. Never needed a heavier or lighter bullet in 270. I played with reloader 22 with good results but if it aint broke dont fix it so im still using h4831sc.

September 7, 2011, 11:40 PM
I've had good luck with H4831sc. Just like the hodgdon manual says, "it goes with the 270 like ice cream does with apple pie".

September 7, 2011, 11:44 PM
H4350 for 130 gr.
H4831 for 150 gr.

4350 for 125gr V-Max as well-- one hole five shot groups out of my old husqvarna.

September 8, 2011, 06:49 PM
Best powder for a .270 Winchester ?
IMR 4064 PERIOD!!!!
Sure, so long as you don't mind giving up 100 to 200 fps out of the muzzle. IME, slower burning rates provide better velocity, especially with 130 gr and 150 gr bullets. Now if Zeke is talking the Sierra 90 gr HP, I have no quibble with his statement.

September 9, 2011, 01:18 PM
I only load 130 gr bullets. 4831 is the best powder for me. I think any powder with a burn speed about the same would do. However I had no luck working up a load with any faster burning powders.

September 9, 2011, 02:04 PM
Actually I'm shooting the 140 Grain Sierra over 44 Grains of IMR 4064.
Really accurate load in a couple of different .270's hereabouts.
Yep! I'll sacrifice 100 to 200 fps when my first three shots form a Ruger #1 in .270 TOUCH at 100 yards using the above load!

September 9, 2011, 02:57 PM
Stopped testing when I got to:
Nosler Accubond 130gr
H4350 53gr.
bullet set .01 off the lands.
Remington 700 CDL
Consistantly shot under 1" at 100 yards.

September 9, 2011, 03:01 PM
Another H4831 fan for 45 years!

September 9, 2011, 05:04 PM
Another H4831 fan for 45 years!
I'm gonna be loading the 270 myself here in the next few days. I recently puchased some RL17 for this. I have read all of the post regarding the 4831 and I can't hardly ignore this advice. It looks like a no brainer I should have got 4831. I got the RL17 load from the Speer website to use with there new 150 deep curl bullets. Y'all got me thinking otherwise.

Gadzooks Mike
September 9, 2011, 11:39 PM
130 grains bullet and 54 grains of IMR-7828 is the most accurate load out of my Savage.

September 10, 2011, 01:08 AM
I killed 8 deer between 400 and 500 yards with a wimp load with IMR4895 in 270 in 2008 and 2009.

But I am switching to all Hodgdon extreme powder for temperature stability.

The reason is that I am shooting at long range and I want to have consistent velocity.
I can be hunting in 10 degrees or 80 degrees weather.

I have worked up almost unbelievable velocity with Re17, but that does not matter.

Cop Bob
September 10, 2011, 01:31 PM
Somewhere around 1971 I worked up a load with 130gr Serria BT's and 4831.... 1/2 MOA out of a 40 year old gun and load works for me...

September 10, 2011, 02:20 PM
140 grn Serria SPBT and Varget

September 11, 2011, 11:48 AM
IMR 4350---55.0 grains pushing a 130 gr. bullet.

September 19, 2011, 02:04 PM
Just a little update, I thought my problem was the scope, but upon removing the current scope, I noticed that the rear base mount was about an 1/8" higher than the front base mount, which was causing the scope to sit at a downward angle. I replaced the rear base mount with the match to the front one, I then bought a pound of Reloader 19 and some Hornady SST 130 grain bullets, so I loaded some at minimum charge (49 grains) and was able to get a 1 inch group at 100 yards. I had 2 seperate shots that had another bullet touching the same hole 1 inch apart and the 5thy shot was down at the bottom of the both, kinda making the group look like a horseshoe. So I am pretty sure I am on the downhill side of it now. Just want to let everyone know that I appreciate all thier help and ideas. I am very pleased to have a forum like this where individuals can seek help with thier reloading problems. So my thanks goes out to every that helped along the way and to the high road forum.

little cleo
September 19, 2011, 05:30 PM
I shoot a .270 Win and get real good groups with a variety of powders as mentioned (RL19,RL22,H4350, H4831sc). Same as bullets Interlocks, Interbonds, Hot-core, Partioners, Accubonds. But what I noticed that really makes the .270 shine is MAG primers. I can use any of the above mentioned bullets and get great groups using 60 grs of H4831sc Win brass and a CCI mag primer. All different COALs though. Good luck I'd try the mag primers.

September 23, 2011, 11:34 PM
I use AR2209 (H4350) and AR2213SC (H4831SC) behind the 130g and 150 Hornady SST. Just about any combination of the above gives me 1 inch groups at 100y. Roughly all to the same point of impact too.

Have settled on the H4831SC for consistency's sake, never lets me down.

January 26, 2012, 12:09 AM
Anyone have the starting load for .277 with 130 GR SST, H4350?

and .277 with 140 GR SST H1000?

Had some trouble finding the new (8th edition) manual, but its on the way.

January 26, 2012, 12:34 AM
The most power possible one time with long brass life comes from Re17.

But developing a long range, wide temperature range load, H4350 is better.

January 26, 2012, 11:32 AM
The first powder I tried for the .270 win. was IMR-4350 and it was excellent in every aspect. A 130 gr. BT was consistently 3150 fps and as accurate. I used that powder for about 15-20 yrs. and then started trying a couple others, H1000 which I didn't like at all, and RL19. RL19 performs about the same as IMR-4350.
I tried RL22 also, but it is too slow burning for the .270 win. and thus won't deliver decent velocity cause you can't get enough of it in the case. IMR-4350 and RL19 both operate with compressed charges too, but they are more realistic to .270 win. MV.

January 27, 2012, 06:51 AM
IMR 4831 is the only commercial powder I use in my 270. O found a load that worked 20 years ago and that's what I've stuck with.

I occasionally assemble practice ammo using a surplus powder called M2Ball surplus that was sold in 8 lb jugs by a company called River Valley Ordinance back in the early 90's. I bought two jugs and still have about half of it left. As best as I can tell after years of experimenting with it, it's really just H4831.

So I guess it's safe to say I'm a 4831 fan!

January 28, 2012, 03:08 AM
I have a buddy who has been loading and shooting a .270 for a LONG time. He always used 4831 and was happy with it until he tried the short cut H4831sc and he fell in love all over again! He claims the short cut version shrunk his SD numbers to low single digits. He has never tried RL-22 but there are a few guys at the range who swear by it but my buddy likes H4831sc too much to change.

January 28, 2012, 07:18 AM
I've had excellent results using H4831 with 130gr bullets in the 270. Mike

January 28, 2012, 11:38 AM
H4350 H4831 either.H4350 with Sierra 130 gr give great groups and had 2 one shot kills this fall. One buck one pig.

February 14, 2012, 12:55 PM
I loved R19 and R22 in the .30-06 but never tried it in the .270. Had the best luck with Winchester 760 with 130 gr on the .270. I don't see anyone else in here that tried that yet?

I always seemed to find something better then the 4831 and 4350. H414 was another favorite.

February 14, 2012, 09:42 PM
I wish I would have bought a bunch of H450 before it went out of production. In my old Remington it would put three shots almost touching. 4350, either H or IMR, is almost as good.

February 14, 2012, 09:57 PM

A buddy has had a Browning A-Bolt Stainless Stalker in .270 for years. Back in about 1991 we loaded some test rounds with H4831 and 140 Grain Nosler Ballistic Tips.

The first five rounds we shot went into a nickel sized hole at 100 yards. He has been shooting that same load ever since.

Just my .02,

February 15, 2012, 12:28 AM
Once again, you can't go wrong with IMR-4350, but RL19 is probably a little bit better. But RL17 also has a place in the top powder list.

February 15, 2012, 08:42 AM
So far, have only tried imr 4831. 54-56 grains seems to do it. Using 130g partitions and sst's. I'm still playing. It seems to perform as well or better than me.

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