what powder should I use to reload the .270

Holy hell. Could you ask a more broad question?

Winchester? WSM? Weatherby?

Bullets? Grains?

I used 59.5 grains H4831 with 130 grain Sierra pro hunter bullets for 30 years. very accurate in my Ruger 77, and put the deer down from 30 yards to 275 yards.

Gifted that rifle to my nephew 2 years ago and he has put several down with it.

270 standard...............H4831 and a good 130 grain bullet. There are other powders that will also give good results. I've had good luck with IMR4350, and R26 is supposed to be very good, providing you can find it.

Personally, when I first started reloading the 270, I just went with the Jack O'Connor "standard" load of 60 grains of H4831 and a 130 grain bullet. There's some debate today about that loading, as O'Connor was using data from the old surplus powder, and today's powder is supposedly different. But, I've yet to experience a problem, and I've loaded 1000's of rounds using the O'Connor data and modern H4831.

Bottom line, do a little research and see what others are using, and just go from there. Try several different powders and see which one works best for you.

H-4831, RL-22 and IMR 7828 have worked great with 150-160gr bullets for over 35 years for me in 270 Winchester.

I've personally never owned a 270 myself but my brother does and he uses RL22 almost exclusively with excellent results.

I use 130 ballistic tips with IMR 4350, been using it for 40 plus years.

This

I did have one 270 with the above bullet that did not like IMR4350 but loved IMR 4831 so go figure...

My standard load for several decades has been 60.5 gr/H4831SC, Fed 210M, 130 gr. Nosler Partition (or Accubond) in several makes of brass. I get 3050 fps with 24” barrels in a couple .270 Winchesters. Very accurate.

Surpassing that load these days has been 60.5 gr/RL26, Fed 210M, 150 gr Nosler Partition. I get 3025 fps with this load and superb accuracy.

In terms of velocity, RL26 leaves the rest for dead, especially with bullets in the 130gn - 150gn range.

+1. I got excellent velocity and accuracy in 3 M700s with it and the 130 Hornady IL and Sierra PH.




Yep, but even before this garbage going on now, it was hard to find. I get 3200+ with the 130 TBT in my M70.

What I’ve used and liked:
RE 26, H4831sc, & IMR 4350.

I think others mentioned I’m sure work well too.

had good performance with my pre 64 Model 70 with several factory loads and my reloads.

Used IMR4350 [because that was what i had ] and 130 gr and 150 gr Partitions and recently 130 gr Hornady Interlocks. Did partial length resizing. Adjusted the seating depth.

All would shoot about MOA when i was doing my job. Deadly on whitetails.

My small experience with my rifle and 2 others was that the 270 is often not too finicky.

Does RL26 really exist?? I keep reading about how wonderful it is, but have never actually seen any!

It’s about like Bigfoot these days.

Another shout out for H4831 with 130g slugs (I prefer Hornady IL or Nosler PT). Accurate and fast enough at 3100fps out of a 22” tube.

I forgot to mention RL23. It’s what I used in my Tikka with 150 Partitions for 2980. I don’t use the Tikka and had some left over and that same load shot well from my peep sighted 760. Not that I can eek out max accuracy from the sights but it’s easily an 1.5/2” load through the 20” barrel. Haven’t checked speed as it don’t matter much for that rifle. I’m betting it’s still over 2900.

H4831 is the age old standby for the 270 Win and I've had good success with it, but I've found h4831sc to shoot better in my rifles. And as a added bonus, it meters much better.
Phil

Bruno's had some earlier this week......gone again !!!!!!!!!!!!!

I've used the 4831s for five decades but recently switched to RL16 with 130 gr bullet....way better....great velocity, very temperature stable and I have the powder.

Pretty much anything from IMR4350 all the way to IMR7977.

For a 130gn bullet, H4831 works very well.

Work up loads and slowly increase to within a grain or two of max.

Years ago I used RL22 then switched to 4831 when I couldn't find it. Now I use 4831 in 25-06, 270and 300WM. Burn rate is very close and I got great accuracy from each. RL26 exists, picked up a pound over a year ago and just got great results in my 6.5CM.

A couple I haven't tried on the list. One thing is for sure, it's not hard to get a 270 Win to shoot well with a lot of different powders.

When I first read about it, (I think it was a MD article) I bought about a dozen 1 lb jugs only because I couldn’t find bigger jugs and that was all the dealer had.

It is a combination of great accuracy and high velocity in my 300 Weatherby with 200 grain partitions and with my 300 Win and 220 grain partitions. Both are sub MOA.

I have not tested it on smaller cartridges much. I think I used it in my 280AI and 160+ grain bullets, but don’t remember the details.

It’s not manic powder, but I’m really happy with it in my 300 magnums.

If you order right now Lester Bruno has it in stock !!!!!

For a plain 270 I have used IMR4350, IMR4831, H4831. Ramshot Hunter, Ramshot Magnum, and Rel 26. I have IMR4451 on hand to try, but have not yet.

My standard is 60.0gr H4831 over 130gr bullet. I have GMX, TSX, TTSX, and BT's always loaded up to try in any new to me 270. Going out tomorrow to shoot a donor Kimber Montana 8400 in 270 to see what it does with those four loads. Typically I will find one if not two loads that shoot very good.

H4831sc

Rule of thumb in my various 270's

H4831 and the key is Win primers

130g nosler ballistic tip or accubond-~60g, BARELY touch the lands

140 " " 58g "

Groups are sub half inch in my Rem 700's that are bedded, freefloated, and triggers tweeked.

Same loads for partitions.

Same load for Speer BTSP and HOT core

The best powder for my 270,s is RL23 with 140gr bullets. With 150gr bullets I use MRP unless I,m hunting where it is very cold.

IMR 4831, H4831, and lately have been using WIN Staball 6.5 all with 130gr bullets.

If you order right now Lester Bruno has it in stock !!!!!


If you want some powder, buy it when you have the opportunity, don't wait.

Hunter is fantastic for the 110s! Either Barnes or Sierra!

I’ve got good shooting loads in my 270 Win with 130gr bullets using any of IMR-4064, H4350, H4831SC, and RL26.

RL26 produces 100-175 fps more velocity than any other powder. It's "kinda" temp stable, but velocity can be less in cold temps. Alliant makes no claims it is temp stable, but says it will show a progressive, predictable change in velocity as temps get colder. RL26 seems to be bit picky about what rifles/loads are accurate with it. H4831 and H4350 are among the most temp stable powders out there, and were stable even before the "Extreme" designation, and seem to have a better chance at getting accuracy. Alliant claims RL16 is temp stable but with 130g NBT's in two different 270's it lost about 40 fps and both rifles grouped little bit higher, one to the slightly to the left, the other slightly to the right. Not a big change but still a change.

I used imr 4350 for a lot of years then through reading o those using H4831 I had to try it and stuck with it, I use the SC version. If I was unable to get any IMR4350 is what I'd go back to for both 130 and 150gr

For 130's Ive consistently had more luck with IMR4350 in the 55 gr range. H4831 is faster when it works with 130's for me. As far as 150's R23 is my absolute fav. Its not as fast as 26... but always seems easier to find a good load with. It ;ets me save my 26 for the 243's. I aint completely sure you couldnt pur the case full of dried cow manure and not get good groups with a 270.

270 Winchester, I like H-4831 Start to hear some good things about RL-26
Truck load of other stuff a guy could try.

58 gr of h4831 or h4831sc for 130s works in 3 model 70s I have also use it on 140s

What kind of number are you getting with R26 and 130"s? I know it is supposed to be "magic" with heavier bullets but have not tried it with 130's.

Alliant online doesn't list any .270 loads with RL26 other than 150 gr. All of those loads are >60gr. What's a max load behind a 130gr? Is this a ball powder or extruded? It seems like it may be difficult to get enough in a case for 130gr bullet(?)

I don’t have any issues getting enough 26 in the case for 3150 under a 130 Trophy Bonded. It is one of my best shooting loads in that rifle.

I don't know max with a 130 but here is some info from what I posted a couple years ago. Probably could go a little higher but I was happy with 3150 fps at only 60 grains. Hope this helps.

https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/12831050/1

You can get 3200 with Re17 without going over max.
I have a 40yr old box of Winchester 130's that average 3160.
It is 55.5grains of what I believe to be IMR 4350, I am going to load a few myself to see if it is..
Do your own workup
3150 is not hard to reach in the 55-57 range with a few different powders.
I usually roll with 4831, as I have 40lbs of original 4831 Military.
I wont tell you what I get with 150's as you wouldn't believe it anyway
RL19,Rl22, 7828, H1000 will work as well as many others

I’ve got to look back through my notes, but remember loading up a compressed load of RL26 around 63.5 gr, giving just over 3200 fps from my 20” bbl BAR with Hornady brass - with slight pressure signs but cycling issues.

Keep in mind Hornady brass in 270 Win is 1.5-2 gr H2O capacity higher than Rem, Win, and Fed brass.

That was with a “hot lot” of RL26. My new lot is slower and definitely case capacity limited even with Hornady brass.

I’ve had great success with H4350, IMR-4350, and Reloader 22 with all bullet weights.

You can't go wrong with any of those & add RL-19, IMR-4831 & Norma MRP, as well.

No real need to look further than those.

MM

R-23 for 130s
R-26 for 150s and 160g partitions....
Very impressed with 26 and the 160g Noslers.
Bugholes at above 2,900 fps.....

Me too. My current lot of RL26 is running about 60 fps slower than my previous lot.

I’m using hunter with very good results

I've always had good results with IMR 4831 and H4831.

My family's Remington's love H4831 with Fed 215 primers, seat the 130 and 140g NOsler ballistic tips to touch the lands and open up a single bullet hole. I have great loads with the R#22 with 130g, but it is slower than the H4831.

130gr federal fusion and honrnady inter-lock over H4350(51grs) or IMR4350(52grs) give almost the same results across several guns. I wanted something that I could duplicate good hunting results across 3 different guns and get similar results. #1 - Browning Bar .270 22" barrel, #2 - Remington 7400 22" barrel and #3 - Remington 700 BDL with a cut and recrowned 20" barrel. I can shoot sub- moa on any gun and POA/POI only moves .75-1" in any direction with these 2 loads, which is perfectly acceptable for me hunting deer out to 300yds+.

130gr Federal Fusion, H4350 51grs, COAL 3.27", Winchester Brass, Federal Large Magnum primers
130gr Hornady Inter-lock IMR4350 52grs, COAL 3.20" Winchester Brass, Federal Large Magnum primers

I’ve gotten success with:

Accurate 4350 and 140g Hornady IL STSP

IMR 4350 and 150g Hornady IL

IMR 4451 and 130g Speer Hot Cor.

IMR 4955 and 145g ELD-X

I’m a newbie. But I’ve had good luck with those so far.

My custom 270 w/ a 24" barrel w/ 7" can pushes 150 gr accubonds at 3000fps with single digit SDs using 7828 ssc and BR primers. Absolute [bleep] hammer on everything i've shot it with (elk/deer/goats). If is could find 4831sc I'd be using it but its practically a unicorn at this point.