reloader 19 in 280 rem.

[wildman]

Can someone with a crony help me out a little bit nosler book shows 53 grains of RE 19 will get you 2903 fps there most accurate load with 140 grain bullet .Sierra book shows the same load at 2600 fps. bout to pull my hair out cross ref. there loads .Will 53 grains of RE19 get me at least 2800 fps. out of a 24 inch t/c encore barrel ?

 

[DrMike]

The Nosler data is generated with a 26 inch barrel, which will add 50 to 70 fps to the load. The Sierra data is generated with a 22 inch barrel, which will reduce velocity (compared to a 24 inch barrel) by 50 to 70 fps. Hence, you really aren't comparing Partitions to Partitions. A QuickLoad projection indicates that the 53.0 grain charge is pretty anemic. By this projection, you would need a charge of at least 55.4 grains to approximate the velocity you are seeking.

Cartridge          : .280 Rem.
Bullet             : .284, 140, Nosler BalTip 28140
Useable Case Capaci: 60.673 grain H2O = 3.939 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-19

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-20.0   83    46.16   2401    1791   29768   8676     86.1    1.514
-18.0   85    47.31   2461    1883   31750   8980     87.5    1.476
-16.0   87    48.47   2522    1978   33866   9277     88.8    1.438
-14.0   89    49.62   2584    2075   36126   9568     90.1    1.402
-12.0   91    50.78   2645    2175   38540   9850     91.3    1.360
-10.0   93    51.93   2707    2278   41121  10123     92.5    1.319
-08.0   95    53.08   2769    2384   43883  10386     93.6    1.280
-06.0   97    54.24   2831    2492   46839  10637     94.6    1.242
-04.0   99    55.39   2893    2602   50008  10875     95.5    1.205  ! Near Maximum !
-02.0  101    56.55   2956    2716   53393  11099     96.3    1.169  ! Near Maximum !
+00.0  103    57.70   3018    2831   57053  11308     97.1    1.135  ! Near Maximum !
+02.0  105    58.85   3080    2949   60975  11502     97.8    1.101  !DANGEROUS LOAD-DO NOT USE!
+04.0  107    60.01   3142    3069   65189  11678     98.4    1.069  !DANGEROUS LOAD-DO NOT USE!
+06.0  109    61.16   3204    3192   69730  11836     98.9    1.038  !DANGEROUS LOAD-DO NOT USE!
+08.0  111    62.32   3266    3316   74591  11975     99.3    1.008  !DANGEROUS LOAD-DO NOT USE!
+10.0  113    63.47   3328    3443   79826  12093     99.6    0.979  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba    103    57.70   3168    3120   68447  11244     99.9    1.051  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    103    57.70   2821    2474   46595  10797     90.2    1.242

 

[wildman]

Thanks Dr.Mike that's just what I was needing to see .......

 

[DrMike]

You are most welcome.

 

[Horsethief]

Load work ups in a 280 Rem (bolt action) with 59gn of RL-19 and a 150gn Sierra Game King got me 3042-3055 fps over a chronograph and a great 200 yard zero.

The most accurate load from 280 with that bullet was from 57gn of Superformance. It took a white tail buck earlier this month with one shot.

 

[JD338]

That is a very mild load. I shot 57.0 grs RL 19 with a 140 gr in 280 Rem and got just under 3000 fps with sub MOA accuracy from a 22" barrel.

JD338

 

[wildman]

55 grains rl19 got me one ragged hole at 100 yards with 140 gr bt's and sierras, 140 hpbt game kings 6 shots one hole I quit messin with it with a smile on my face .Thanks for all the info. much appreciated ...

 

[DrMike]

Nothing wrong with that result. Yeah, I'd have a permanent grin affixed to my face, as well. Congratulations.

 

[Hegland]

Nicely done! I think my .280 will be a new years' resolution this year; it's been getting far too little attention.

 

[DrMike]

Superb resolution! The .280 is a "Do It All" cartridge deserving of far more respect than it has received.

 

[gerry]

Superb resolution! The .280 is a "Do It All" cartridge deserving of far more respect than it has received.

That is for sure, great round that kills well but doesn't kick super hard.

Wildman, it does sound like you have a great load, congrats.

 

[wildman]

I was tickled with how it shot esp. the two bullets having the same poi .Had been shooting imr4350 powder but after trying this rl19 i'm thinking it might be a little bit more consistent from what i can see .

 

[DrMike]

Alliant powders have generally performed well across a variety of platforms for me. ReLoder 19 is a standard for me in standard cartridges and also in the 270WSM and the 300WSM.

 

[gerry]

In my cousin's 280 Rem RL 19 was the best, he used 160-175's for our animals here for the most part. My buddies 280 does really well with H 4350 and 160 gr Partition Gold bullets.