270 powder

[caster456]

what is the best powder to use in a 270 for a 150 grain bullet?

C

 

[bedrock]

I have always used 54.5 grs of IMR 4831. It's not a hot load but has always been very accurate for me. I would also look at IMR 4350, H4831 or H4831SC.

 

[ringo]

I use 55.5gr of H4831sc. It gives good accuracy and works for my style of hunting.

 

[RickF]

Short conversation for me. A few different powders will work, but in my experience nothing touches RL22 or H4831. 57 grains should work.

 

[Why not?]

4831 or Re22, no question the best for the heavier bullets.

 

[Scott_N]

I load for a buddy's 270 and have found that IMR 4831 gives good velocity and accuracy. It's not much of a problem to get 2900 fps without signs of too much pressure out of his A-bolt with 150 Partitions.

 

[caster456]

i have been using imr 4064 but it has a big drop from 100--200 yards and from the looks of things i sould try this imr 4831.


Thanks for the replys

 

[Eagleye]

H4831 is a classic in the 270, but I have found with the heavier bullets that Reloder 22, Reloder 25, IMR 7828, Norma MRP, and Vihtavuori N165 all work very well also. Regards, Eagleye

 

[adriel]

H4831sc, as said above.

 

[rem338win]

Depends on the bullet, H4831sc is the best all round, and I use 58grs with the 150 partitions, Hornadys and TSX. I use 57.5 with the Sierra, Corlokt and Speer. All of these combos average 2950, and there is no pressure sign.

 

[Davidf]

Lately I've been using IMR4350 for 130, 140 and 150 gr bullets. In the past though I've had excellent results with W760 though. W760 is a ball powder which means it's easier to work with. I can set my thrower to drop and exact charge. I still weigh every charge but save time because I seldom have to use the powder trickler

 

[dan belisle]

My best 270 loads were with RL22. - dan

 

[JasonYuke]

Been using 130 gr Nos BT with H 4350.
Not getting th evelocity as i would from 4831 but its close and very accurate

 

[catnthehatt]

Any powder will do as long as it is 4831 - OOPS! I think someone already said that!
Cat

 

[Ganderite]

4064 is rather fast for the 270.

You want a powder about 2 steps slower. Some flavour or 4831 would be good, or RL22.

It would be good to avoid a mild primer, like the Federal. The standard Winchester (not the Magnum) is quite hot and would give you a reliable round with slow powder in cold weather.

 

[Ganderite]

4064 is rather fast for the 270. As bore diameters get smaller, slower powders are called for. Big bores, like 375 and 45 require quite fast powders.

You want a powder about 2 steps slower. Some flavour or 4831 would be good, or RL22.

It would be good to avoid a mild primer, like the Federal. The standard Winchester (not the Magnum) is quite hot and would give you a reliable round with slow powder in cold weather.

 

[john-brennan]

270

I have had a 270 for 30 years and with 130gr H4350 and for 150gr H4831 has worked very well for me.

 

[martinbns]

H4831 and in both of the 270's I've loaded for magnum primers gave best accuracy and consistency of velocity.

 

[caster456]

4064 is rather fast for the 270. As bore diameters get smaller, slower powders are called for. Big bores, like 375 and 45 require quite fast powders.

You want a powder about 2 steps slower. Some flavour or 4831 would be good, or RL22.

It would be good to avoid a mild primer, like the Federal. The standard Winchester (not the Magnum) is quite hot and would give you a reliable round with slow powder in cold weather.

i have been using cci primers.

 

[newt]

For my 270 i use h4831 with all my bullets from 130 up.