.270 and R-19

[257 Ackley]

Can someone send me starting and what they have found for max with R-19? This will be for 130 and 140G bullets. The Nosler book doesn't give any loading info for R-19 with the 130 grain bullets. Let me know if it is too fast and if R-22 is a better option. Thanks

 

[tjRoberts]

My latest speer manual, lists a starting Chg of 53 grains for a MV of 2699 and a max of 57 gra for2904, for 130 grain buuets, 140s show 52 gra for2750 and 56 for 2923.
Yes, I did a double take too,
A slightly lower charge of the same powder pushes a 140 grain bullet faster tahn a slightly larger charge pushes a 130.
OH well its a strange hooby.
This is from a 22 inch tube.
RL=19 is a good powder for a lot of cartridges.
OF hand I can remember using it in 06 ,.270 , 280, 7mag .338 win 7X57
.257 Roberts.
I bet you will like the results and if you have a 24 inch tube i bet it will give you some decent speed.
by the way , i didnt get to range on saturday as my buddie could'nt make it.
i think I will go one morning this weeks as the range is nearly empty week days.
I,ll let you knw about my AI...tj3006

 

[FOTIS]

Cartridge : .270 Win. (SAAMI)
Bullet : .277, 130, Nosler AccuBond 54987
Cartridge O.A.L. L6: 3.340 inch or 84.84 mm
Barrel Length : 22.0 inch or 558.8 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 79 44.00 2299 1526 27352 9220 82.7 1.486
-18.0 81 45.10 2357 1604 29108 9566 84.1 1.449
-16.0 83 46.20 2416 1685 30978 9908 85.6 1.412
-14.0 85 47.30 2476 1769 32968 10246 87.0 1.377
-12.0 87 48.40 2535 1855 35087 10579 88.3 1.342
-10.0 89 49.50 2595 1944 37341 10904 89.6 1.307
-08.0 91 50.60 2655 2035 39751 11220 90.8 1.268
-06.0 93 51.70 2716 2129 42318 11528 91.9 1.230
-04.0 95 52.80 2776 2225 45059 11825 93.0 1.194
-02.0 97 53.90 2837 2323 47985 12110 94.0 1.159
+00.0 99 55.00 2898 2424 51110 12383 95.0 1.126
+02.0 101 56.10 2959 2527 54456 12641 95.9 1.093
+04.0 103 57.20 3020 2633 58036 12884 96.6 1.062 ! Near Maximum !
+06.0 105 58.30 3081 2741 61875 13110 97.4 1.031 ! Near Maximum !
+08.0 107 59.40 3142 2850 65984 13319 98.0 1.002 !DANGEROUS LOAD-DO NOT USE!
+10.0 109 60.50 3204 2962 70365 13509 98.5 0.973 !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 99 55.00 3058 2699 61280 12579 99.2 1.040 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 99 55.00 2697 2099 41844 11590 86.9 1.234



Cartridge : .270 Win. (SAAMI)
Bullet : .277, 140, Nosler AccuBond 54765
Cartridge O.A.L. L6: 3.340 inch or 84.84 mm
Barrel Length : 22.0 inch or 558.8 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 80 44.00 2297 1641 29615 9609 86.0 1.486
-18.0 82 45.10 2355 1725 31555 9951 87.4 1.448
-16.0 84 46.20 2414 1811 33620 10287 88.7 1.410
-14.0 86 47.30 2472 1900 35822 10616 90.0 1.373
-12.0 88 48.40 2531 1992 38166 10936 91.2 1.335
-10.0 90 49.50 2591 2086 40672 11247 92.3 1.294
-08.0 92 50.60 2650 2183 43346 11548 93.4 1.256
-06.0 94 51.70 2709 2282 46201 11837 94.4 1.219
-04.0 96 52.80 2769 2383 49251 12112 95.4 1.183
-02.0 98 53.90 2828 2487 52513 12373 96.2 1.148
+00.0 100 55.00 2888 2592 56004 12619 97.0 1.115 ! Near Maximum !
+02.0 102 56.10 2947 2701 59743 12848 97.7 1.082 ! Near Maximum !
+04.0 104 57.20 3007 2811 63720 13059 98.3 1.051 ! Near Maximum !
+06.0 106 58.30 3066 2923 67969 13251 98.8 1.021 !DANGEROUS LOAD-DO NOT USE!
+08.0 108 59.40 3126 3037 72522 13423 99.2 0.991 !DANGEROUS LOAD-DO NOT USE!
+10.0 111 60.50 3185 3153 77407 13573 99.5 0.963 !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 100 55.00 3033 2860 66945 12589 99.9 1.032 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 55.00 2698 2264 45728 12014 90.0 1.221

 

[CZ]

I had always used H4831-56gr with Nosler AB 140gr.
Just found a super accurate load with RL19- 56gr, 1 gr. below max.-
in my very old, super accurate Remy 700 groups .25MOA at 100yds.

 

[FOTIS]

In my experience rl22 and h4831 rocks in the 270

 

[Alaska]

Just Like POP said

With 270 Win I have found H4831 or IMR 4831 excellent with both 130 and 150's

Reloader 22 excellent with 150's.

RL19 @ 55 with 150's
56 130's
56 140's

WW Brass and WLR primer COL 3.330"