What powder is your go to in a 270 with 150gr NP's?


Thanks

H4831 or IMR7828

Shag,

I've had good luck with H4350 and 150 grain bullets but I haven't shot any 150gr Nosler Partitions. My loads were all Speer and Sierras.

H4831 is what I use with the 150-grain bullet in the .270 WCF.

I started with H4831 and had good results so haven't looked further. I do have RL22 and 7828 that I will give a shot one of these days...

IMR 7828 @ 2883 FPS shoots bugholes w/150 NP in my 24" barreled 270.H-4831 works well too.

H-4350 and H-4895 have been my go to powers for everything in my 270

51-52 gr of IMR4350.

Slightly off topic but I'd like to note that 160 NPs over IMR 4350 are my rifle's favorite bullet. Been shooting them for about 8 years after decades of mediocre grouping.

No need to go back to the 130 grainers.

Denny.

RL-22 and IMR-7828 with the 150 gr Partitions gave consistant groups of .750 out of my .270 Vanguard....

My load is 57 gr. of Rldr-22 with the 150 Partition. It's my "go to" load. It gives me 2930 fps and consistent 1" groups in my Pre-'64. Been using this combo for years. Devastating on caribou & like sized animals. I have to admit that I've been kicking around trying some IMR-7828 just for kicks.
Bear in Fairbanks

Interesting load BIF. I'll try to keep it in mind for this year.

Denny.

I,m using 58 gr. of Norma MRP which shoots real good
in my Vanguard S2. I tryed IMR 7828 it was not as
accurate. I got my cow Elk with the MRP load in October.
However I,m probably going to use 140 gr Accubonds
next year if I get a tag. They are a little more
accurate and stay together about as well. Penetration
does not seem to be a problem with either.

RL-22; really cannot be beat.........killed more stuff from moose on down with that bullet than all else put together. It has never failed.

MM

I agree, I only tryed MRP because of the powder shortage.

Since you are asking about the 150's:

http://www.shootersproshop.com/nosl...r-partition-spitzer-blem-50ct-11340.html

Hard to say no to that price!!!!!!!

My 270 Win loads with 150 NP have progressed as below.
58.0 gr. H4831
58.0 gr. RL22
52.0 gr. RL17 (current hunt load)
All shoot 1 moa or less.
All kill elk and mule deer quite dead.
Tim

I like MRP in the 270 & 280 too, though it's always been expensive & hard to get, but it's pretty much equal to RL-22 & it meters better as well.

MM

I pretty much stick to H4831. Have gotten excellent accuracy with all the powders mentioned so far, and sometimes a little more velocity than with H4831, but live in Montana, where hunting season temperatures can go well below zero. Have had more consistent results in widely varying temps with H4831.

Yep - a 150 NP with a dash of H4831 is a rock solid combination.
Add a pre '64 for class and you're on your way to some great memories.

+1 Works great in Dad's 270

No 150s but 57g of H4831SC gets me 2800 fps with the 160g NPT and the same accuracy and point of impact at 100y as the 130g version.

Sounds awesome, I guess I got it covered....I just received my 150's in the mail today. I'm hopeful they shoot better than the 130 gr. partitions in my 270 fwt:

I'm a bit disturbed that I can run a 150gr Accubond or Partition in a 308win at 2835fps with Varget.

Yet the last 270 I loaded for I averaged 2850fps with Hunter and a 150 PT.

I have a few bags of ProShop 270 150gr partition and I just loaded a few to head to the range. I noticed these bullets have a cannelure and was wondering whether the ones that come boxed have a cannelure? Maybe that is why they were in the ProShop? And I loaded them with IMR 7828. Will let you know how this shoots in my Ruger M77. I loaded up some NBT 130gr, NBT 140gr and these 150gr partitions from the Proshop.

I just thought the cannelure was a bit off since I loaded to OAL (and my OAL needs to be a bit less than what Nosler suggested). Will see how they shoot tmw.

I'd say you are pretty easily disturbed...

I like H-4831 with 150 Nosler Partitions. 57 gr H4831SC gives me 2950 fps out of 24" barrel and it is very accurate. I have tried a bunch of different powders with other 150s, but never diverged from this tried & true combo with the partitions.

Lou

Yes it was a provocative comment wasn't it?

I shot the 308 almost all the time for 25 years and killed probably 8000 head of game with it. Switched to 270 Win about 3 years ago as my main game taker.

The 270 Win is a good bit more gun than the 308 in my opinion, even though I still love the 308 and would recommend it to any big game hunter.

um, maybe?

I wasn't real impressed with my last 270 as far a velocity goes. I was very surprised that the my 308 was within 15fps using a much smaller case.

Heheh yeah provocative comments are the lifeblood of any campfire yarn, online or otherwise!

The 308 seems to be pumped up to the beejezus in some loading data and the 270 is dumbed down ridiculously in many manuals.

There might be only 100fps in it for 150g bullets, advantage to the 270 Win, truth be known. Those 277 cal bullets in my experience are more effective in equal bullet weights. Might seem like a wank but over many kills I reckon I can tell the difference.

Many SPS bullets are overruns of bullets made for someone else (like Federal) and will have the cannilure because they request it. Simply forget it is there and load as usual.

IMO if a guy is running a 150gr bullet in a 270win and only getting 15fps more than the the same 150gr bullet in a .308 a guy can save powder and deal with less recoil and have an advantage in the bigger diameter of the .308.

I'm hoping I can find a non temp sensitive powder for my new 270 that will change my mind.

Shag I am running good old H4831SC (Ar2213SC) under a variety of 150g bullets including the SST and NBT and have no trouble getting 3000fps if I need it with great accuracy and zero signs that I am pushing too hard.

I also get 2900fps with the 160g Partition if I want to step on the throttle a bit, however I feel 2800 is plenty with that big sucker. Again with 4831.

Yes the loads are a little above published Hodgdon/ADI data but I am a cautious experimenter and not given to reckless overloading.

The 308 is normally loaded with a faster powder than the 270.
Barrel length, bore, bearing surfaces and friction come into play.
You have to treat each and every gun separately to see what she will do. There are slow and fast barrels out there.
My two absolute go to guns are a RL77 308 and an R77 in 270 (with some other similar bore sizes often along for the ride also).
I normally use W748 in 308 and H4831,R22 and R17 in 270.
In either the 150 NP is quite deadly.
jmho
Tim

I hunted with a 308 for several years (a couple different species of deer) and rebarreled it to 270 Winchester. What I was looking for was better accuracy with the aftermarket barrel and shorter blood trails. Turns out I got the accuracy and am convinced I also got the shorter trails. Typically I had come to expect 50-100 yard trails with the 308 and the 270 was more like 10-25 yards. (all providing I did my part!) These were with typical C&C bullets, usually hornadys.
I can't explain the results logically, but you couldn't get me to believe otherwise! And yes, I am a big 270 fan and to this day have an aversion to 308s! (we are a funny lot with our own "superstitions")

Shag:
I can't comment on your using Hunter in your .270 Win. But yes, 2850 seems pretty slow to me too. Don't know how much experimenting you've done but as I wrote above, I get 2930 FPS with 57 gr. of Rldr-22 with a 150 Partition. Think I'd try some H-4831 and maybe even some IMR-7828. In short - don't give up on it yet. Good luck.
Bear in Fairbanks

Edited to add: If I recall correctly, 58.0 gr. of Rldr-22 was max. I tend to run about 1 gr. under max. as long as accuracy is acceptable.
B.I.F.

I run 59g standard 7828 with a 150 npt. It's warm but it's a book load from an older imr load book. My last 22" bdl 270 ran right at 2970 fps with it and shot 3/4 moa. I picked up a t3 ss 270 last fall and I've only had it out once but it ran about 2940 with the same load. It's not an extreme powder but I don't get too wide of swings.

Bb

Funny you say that...my brother has had more deer run on him with his 308 than the other three of us have combined with 270s. Maybe its his shooting or just coincidence but ironic you say that.

I agree 100%. The .270 penetrates much better than my .308's, both shooting 150's...

You must be from east of the Mississippi. Out here we prefer the higher BC.

I'm sad to say that I've yet to get anything promising out H4831. But this is a completely different rifle to me and I will try it.

BB,
I will get some 7828. Thanks

Try RL22 and RL17 before giving up.

I've not had the results others have said in 3 Rem M700s with H4831 myself. I haven't tried it much in my FN M70 yet but as mentioned, before you give up, try RL22, it's given me both better velocity and accuracy in those three rifles. It's the first powder I try in 270s, the second is Ramshot Hunter then probably Magpro.

H4831 never really impressed me in a 270 either. 7828 gets me the speed I want. Mag pro gets some decent speeds too. Back in the day I ran a little RL22 also. I'm not really a big 270 fan but one or 2 always seem to sneak into my safe.

A few years back I put one of my Alaskan Ti fluted take off barrels in 270 on an sps action and stock for a friend. He told me he wanted a load that would do anything for him. First thing I tried was 150 npt over 7828. It was clocking almost 3000 from the 24" tube and grouped around 3/4 moa. I loaded him 100 rounds and called it good. First year out he shot a decent buck on the run about 150 quartering away and said it flattened it. His brother and friend were so impressed they both used his rifle to shoot bucks the same day with the same result. Later in the year they shot some cow elk with it. He has a lot of rifles but that's the only one he hunts with now.

I just still can't bring myself to like a 270. Mainly because that's what my stepbrother always shot and he was such a douche about it. That and the whole BC thing. I do need to get the t3 stainless out again and see what it'll do. I just bought it because it was like new for $460.

Bb

Shag, when I got my Kimber 84L MT in 270, I only shot 150's in it (both Ballistic Tips and Partitions) and H4831sc gave me good speed, but not great accuracy. I switched to H4350 at Dober's suggestion and groups shrank considerably.

In past 270's, RL22 always worked well, and RL17 too. However, H4831sc would always be my first choice.

And BTW, a 150 NBT or NP is great elk medicine!

I have found loads that shoot with h4831 in the .270, but it has been more finicky in my rifles. I too have consistently gotten better results with rl22 and Hunter and with higher velocity.

One other comment on rl22, It was once the only powder I used in .270 and .300s, but have seen bigger pressure swings than with h4831, h4350 and Hunter or most other powders I use when it gets hot. I had a load that was a little below max with 140s and getting 2890 or so at 70 degrees that at 102/103 was doing 3150 with pressure signs out of a 22" barrel. I had to drop 3 grains with rl22 in the summer to get the same velocity. Of course, I have seen pressure move with heat with other powders, but not to that extent. In order to get year-round performance, I generally run a grain or two below max at mild temperatures with most powders and use rl22 less than I once did.

Brad, I may hit you up later on loads with H4350 and the 150gr partition. I have a chit ton of IMR 4350, so that's what I'm using at the moment. I'm heading out to the range with my 270 here in a bit to try out my new Mcmillan

FWIW BSA,

With the 150gr Partition in a 270 Win. I usually start around 50.6grs and work up to around 52grs of H4350, with most rifles I have played with a sweet spot will generally show up between 51-52grs in Remington or Winchester brass over a Fed.210 or Win. LR primer.
Usually very good accuracy but don't expect the velocity you can get with the slower powders......
Good Luck,
-Ted

57 gr RL-22 and the 150 NPT's are stoners on deer and pig sized game, they av. 2925 from my pre-64 when lit with CCI-250 mags in WW hulls.

My fav 270 load by far.

Gunner

gunner this sounds like it might also be a good black bear load for my spring hunt... Thanks..

10-4 WCH, believe I read where Bear in Fairbanks has used that load for elk too, and he said it flat works.

Gunner

Good information.. Thanks again..

Gunner: Sorry, I've never used that load on elk. Only caribou & of course, sheep. I wouldn't hesitate to use it on Alaskan moose
but haven't done that yet. Use my .338 WM for them. My B.I.L. is putting together a group hoping to draw a party tag for Oregon elk.
If we get drawn, I'm planning on loading up some 150 NorthForks for the .270 Win. and using that. For me, experience has shown that NF's are slightly more accurate and they work at least as good & maybe slightly better than Partitions. Load workup for them is easy & straight forward.
Good luck,
Bear in Fairbanks

OOPS , wish I could use the search function and find who wrote and told me that, sorry.

Gunner

I seem to remember an article by JOC where he hunted with Bowman in Wy. and killed an elk with his .270 and 150 grain Noslers at something right around 400 yards... I may still have the article.

The recent posts on this thread about not getting very good accuracy with H4831 and 150-grain bullets are interesting.

I first started using that combination in 1979, with the last of my supply of the original mil-surp H4831 and 150 Hornady Interlock, and my first .270 (a Remington 700) shot that combination great. In fact it would do around an inch or a little more at 300 yards for 3-shot groups.

Have gone through two other versions of H4831 since, the Scotland-made powder that replaced the mil-surp, and the present Australian-made version, both short-cut and "long-cut." In 10 .270's since ALL the 3-shot loads at 100 yards have averaged .95 inch. Not all were shot with Nosler Partition, but quite a few were; the other 150's were Hornady Interlocks, Sierra GameKings, and Nosler Solid Bases and ABLR's.

That includes the groups with one of the rifles (my second pre-'64 Model 70 Winchester) didn't like the Partition very well, averaging around 1-1/2", but the others all shot it well, but it shot the 150 Interlock into 3/4". And one of the rifles was a Remington 760, which shot 150 Partitions into a little over an inch.

My present .270 is a CZ 550 that in early experimentation with H3831SC and the Nosler 150 ABLR averaged .79. This was with the first seating depth and powder charge tried, so imagine it will do better with some tweaking. Will see between now and the fall hunting season.

I have only used the Australian powder in 270, but have had fewer loads shoot well with it than other powders over five or so 270s. I have a ULA that would only do about 3" three shot groups with 150 NPTs with H4831. I thought it didn't like partitions until I loaded three or four powders with 150 NPTs and went to the range. It turns out it didn't like 4831 with partitions of any weight. Over about 10 groups that day it averaged about 3/4" with other powders. The ULA is also the ONLY 270 I have ever owned that would shoot 130 Hornadys with 4831, but only with 59 grains. The other four have only shot that bullet well with Hunter or rl22. drop the charge a little or go up to 60 of H4831 with the Hornady in that rifle and it opens up to about 2.5". In fact, the above mentioned are probably the only two loads I have ever had shoot poorly in that ULA for me.

Good thread guys. Good info..

I know H4831 is a great powder in the 270. Many others with a lot more exp than I have have had great results...it's just never worked as well as some other powders for me for some reason....as much as I want it to.

10-4, thats good performance at that range.

MD, I've never tried H-4831 in any of my 270's, always save it for that powder hog 505 Gibbs, it gulps dowm near 150 gr per shot.

Gunner

I'm loading 150 partitions over 57 gr of H4831SC. Accuracy is good in several different rifles. Velocity averages right around 2800 fps. That sounds a little slow in this forum.

Oh, my poor aching shoulder!! Hurts to think about it.

No kiddin, 600 gr Woodies at 2450 kinda suck, I've since backed em down to a more user friendly 2150 fps.

Gunner

The .460 will do that with a lot less powder?

600gn Barnes RN
120gn AR 2213 2346
122gn AR 2213 2389
118gn IMR 4831 2392
120gn IMR 4831 2453 8019
114gn IMR 4350 2418
116gn IMR 4350 2460 8064

Yes, at a lot higher pressure, but less recoil due to less powder burned.

Gunner

Interesting, Maybe that's why I've never found a load with H4831 in any caliber I've loaded for as I always start with a Partition and usually end with a Partition.