Alright I'm about to start my first batch of .270 win but before that I'm trying to gather more info. Would anyone happen to have a favorite recipe for this load and more importantly any factory specs on the casing and finished product. I'm working with these components: 130gn. Win sp, hodgdon H4831 (56gn.'s for about 2843 fps) and Winchester large rifle primers. I found the bullet diameter is .277" and a possible factory case height 2.54" width 0.473". Any other numbers you guys have run on this load for me to check would be great thanks!

I almost always used H4831 with 130s in the 270. A little more than you listed. At they time my load was listed in the load manuals. My new Nosler book is a touch lighter.

My BDL 270 shoots clover leaves at 100 using 60 grains of AA 3100 lit with a CCI 200 primer pushing a Speer 130-grain Grand Slam. I seat the projectiles .010" off the lands and let the good times roll.

Prior to me switching to Accurate powder, my "go to" load was 59 grains of IMR 4831 with the other components the same as above. I happened upon a great deal on some AA 3100 (I was told by the ballistician at Accurate Arms it was IMR 4831 but nitrocotton based as opposed to nitrocellulose, and is one grain slower than the IMR) and taking the advice I got at AA, I upped the powder charge one grain. Velocities increased about 50 fps, and POI did not change.

Work up to these loads. Every rifle is different!

Ok great thanks for the info ram glad to hear that's a solid powder

Ok double thanks for the help I'm going to run through these components because I already bought them but I'll take note of that and try it on the next ones. One more thing once you resized your cases do you recall what the case and neck outside diameters measured?

My .270 WCF loves just about any 130 bullet atop of 59 grn of H4831SC

I have loaded 60.0 H4831 in a half dozen different 270s and every one of them thrived on it. Usually 3100-3150 fps, 1" or smaller groups, and an effective killer.

Most 270/130's, like relatively slow-burners like 4350, R19, IMR 4831 and H4831.
Historically, H4831 is the go-to load, but all the 270's I've been involved with just work better with 4350. In my latest, a primo custom M70 Fwt, I'm getting around 3,050 out of its 24" barrel with 54.5 H4350/F210M/W-W case/130 Speer Flatbase/3.25" o'all, and groups of 1" or so, when I do my part.

quote:

Originally posted by Sagebrush Burns:
I have loaded 60.0 H4831 in a half dozen different 270s and every one of them thrived on it. Usually 3100-3150 fps, 1" or smaller groups, and an effective killer.

I think that is the "original" 270 load isn't it. Jack OConnor would be happy.

for me its 54.0 grs. H-4350 with any 130 gr. bullet..

60 grs. of H4831 and any 130 gr. bullets is the holy grail of the .270...has been for ions..

I shoot 62 grs of old army surplus 4831 for a tad over 3250 FPS, that's the famous Jack O'Conner load, and pressures are relitivly mild..BUT its not the same H or IMR 4831 that you can buy today..In fact, I doubt that one can get 62 grs. in a .270 or 30-06 case today and 61 with todays 4831 would no doubt push a bullet forward overnight...

Some many years ago, I bought a 150 lb.s of the old stuff in a stainless steel vacum top lid, container, framed in 2x4 lumber and marked US Army (4831 powder)
Some of these containers called the same powder 4350 "Data" Powder, but they were actually 4831 and the very same powder. caused some confusion back then, still does today. I use it in my .270, and 300 H&H only..

H-4831 is a great powder in the .270; however, you might find that IMR 7828 in the SSC version, or RL-22 could do better in some guns. Rifles vary a great deal as to how much powder they will tolerate. My maximum load in a Sako .270 is 58.5 grains of (original surplus) 4831 which generates an honest 3200 fps. Any more powder in this rifle would exhibit signs of unsustainable pressures. Yours may very well stand more.

I had a .270 for a long time and passed it along to a son who enjoys it to this day.

I was loading and his is now loading H4831 62.0g in WW cases. It seems like the WW cases are the only one I found to have the capacity to hold 62.0g.

That gun harvested many many deer and elk in Idaho and is now serving on the same critters in Montana.

quote:

for me its 54.0 grs. H-4350 with any 130 gr. bullet..

I use 55 under the 130 TTSX, no worries for me.

I shoot 2 different 270'S a Model 70, in which I use 56 Grains of IMR4350, and a 130 Ballistic Tip. Vels around 3100-3150. Groups are less than 1". In the Sendero I use 58 Grains of IMR4831 and again a 130 Ballistic Tip, Groups are bug hole, and vels are over 3200fps, due to the longer barrel. I am going to sit on a hill in Wyoming with The Sendero, and shoot the biggest Antelope buck I can see @ 500yds. At least that's my goal. I love the 270 Winchester, have shot everything from elk to prarie dogs. Good luck with yours.

Jerry

RWS, Fed Match 210, 59 gr IMR 4831, 130gr TSX