280 Remington 160 gr load advice

[tecumseh]

I'm looking for load recommendations for 160 gr Sierra Gamekings for my 280 Rem with IMR-4350, I'm starting with 48.5 gr and another load with 49.5 gr. I ran a couple loads with IMR-4831 last year with less than mediocre results.

 

[JD338]

My go to load in the 280 Remington with a 160 gr PT was 54.0 grs IMR4831, shot .400".
I would also take a look at RL 19 and RL 22.

JD338

 

[gerry]

We tried H 4350 and H 4831sc in my friends 280 Rem, H 4350 was slightly better in his gun so we went with it. We never did try IMR 4350 though so can't help you there.

 

[nvbroncrider]

7828 can take you up to 2950-3000

 

[tecumseh]

IMR-4831 is the goto powder for 140 gr bullets in this rifle, I have the other powders mentioned and will give em a try as time allows. I have the hunting loads made up I'll be using.

 

[Oldtrader3]

Try, 58.0 grains of IMR 7828 SSC with Fed 215 MM Primer. Should get you to 2900 fps with no pressure issues in the .280, with 160 gr bullet.

 

[glock3540]

Another vote for IMR7828 with 160 gr. I don't have the load date in front of me but I believe my best load is 59gr IMR7828 with a 160gr AccuBond. No pressure signs in my rifle but I know it is a couple grains over max load in the most recent Nosler manual. I think 59.5gr was max two manuals ago.

 

[tecumseh]

I don't have any IMR-7828 on hand, but I know someone I can get some from. I did load up 5 rounds with 50.5 gr of IMR-4350 to start with. It's 1 gr under the max load in the Sierra manual.

 

[orchemo]

I seem to get better groups using IMR-4831 verses 4350. I have not tried 7828 but I have a few cans of 7828SSC that I will play with this year.

Eric

 

[Mountain Goat]

+1 on the IMR7828 with 160gr bullets. I shot the 4350's for years just because they worked. I then went to IMR4831 with the 140's and 7828 with 150's and heavier. RL19 and RL22 are worth a try if you have some.

 

[Horsethief]

With the 160gn Partition I used 58gn of RL-19 and got an average MV of 2975fps from a FN bolt action. There were no signs of overpressure, but I settled on 56gn as the "go to" load if I'm using the Partition.