280 Load Development

[DaveA37]

My .280 shoots a 140 AB about as good as it gets right now. Had no problems with deer or antelope last fall and also took a nice big cow elk with a .270 pushing a 150 gr. AB so THAT is what is prompting me to up the bullet size. (One can never be complacent). (NOTE: Original post was incorrect. Should read 150 gr. PT, NOT AB)

Thinking about "uping" to a 150 gr. PT for just a bit more "umph" out at 250-300 yards.

Anyone have a good "formula" to start a new load?

 

[JD338]

Dave

Are you referring to the new 150 gr AB LR?
Should be available in May.

I would look at RL 19, RL 22 and IMR 4350. These powders should get you above 2900 fps.

JD338

 

[SJB358]

I am with Jim, RL19, 22, and IMR7828 would be top of the heap if I were starting load work with the new 150's.

 

[RiverRider]

I'd be looking at H4831SC, myself. A couple of years mucking around with other powders just didn't pan out, so I came back home to H4831 and haven't looked back.

 

[JD338]

RR

Glad you mentioned H4831.
Another great powder for the 280 Rem.

JD338

 

[bobnob]

I didn't think that there was a 270 cal 150 AB available yet? The original post is a little confusing so I apologise if I have misinterpreted it.

In any case the 280 has plenty of boiler room to get 150 grainers out there at good speed so I say go for it.

H4831 would be my first port of call but H4350 might be a go-to as well. Maybe R17 if that's all you can get. We are experiencing some powder shortages over here too so it pays to have a plan B. R19 or 22 would be ok too. Don't forget the WWpowders too, 760 or 780.

 

[Horsethief]

My 140 Sierra Game Kings grouped .66" @ 100yds with 55gn H-4350, chrony avg 2960fps. I have no reason to think the ABs would not be as good.

The 150gn Game Kings had between 2972 and 3008fps on the chrony with 57gn of Superformance, grouped .70" @ 100yds.

 

[RiverRider]

Now that the subject of component scarcity has been mentioned, I wouldn't hesitate to use something as quick-burning as H4895 if that's what I had to do. We may now be living in the age of "improvise, adapt, and overcome!"

 

[Wincheringen]

RL22 works really well for me with the 150 grain ETip.

 

[338 Ultra]

Nothing in a 150 but I do shoot the 160 AB over 7828 shoots flat and shoots through big deer and black bears superb bullet in the 280.

 

[HTDUCK]

H4831, RL19 or RL 22 should get it done.

 

[Oldtrader3]

I shot the 160 Partitions with IMR 7828 SSC and get sub MOA accuracy in my .280 Rem.

 

[DaveA37]

I didn't think that there was a 270 cal 150 AB available yet? The original post is a little confusing so I apologise if I have misinterpreted it.

...

Sorry that I made a mistatement. I meant the 150 Partition. My bad.

I have 4831, 4350 and RL-22 on hand so guess there is plenty of powder selection opportunities, I just need to find which one works the best.

I've had great luck with both the AB and the PT over the years and find no fault with either. I DO however like the controlled expansion of the AB over the fragmenting of the PT but BOTH types get the job done.

If the new 150 AccuBond LR were available, I would definitely consider that projectile as well.

 

[DrMike]

Your powder selection is right in the zone. A 150 grain PT will work very well. I shoot it in my newest 280 with good results. I'm on the road, so I don't have my data available, but IMR4831 and RL19 each have worked well for me. I also use a fair amount of VN165 with that case and bullet weight.

 

[DaveA37]

Thanks for the help everyone, nowit's "bench time" to get the loads prepared and then some range time to follow.

Hope the load development works out as I already have my Wyoming elk tag and await a mule deer tag in the upcoming draw.