R26 Substitute powder!!

R

rmarshall

Handloader
Mar 10, 2010
399
91
I have really liked this powder and it has given great accuracy and velocity from my 280 AI. Right now I have a killer load running a 160 AB on top of R26. With the cost of these Alliant Reloder powders and there being nearly impossible to find, I've got to start looking for a new go to powder. On the burn charts it shows N165, IMR 7828ssc, N565, N170, MagPro, H1000, and Ramshot Magnum on both sides of R26. They are all cheaper than Alliant stuff right now. I have IMR 7828ssc, it shows really good results. What's another powder that would be great in the 280AI?
I still have a few pounds of R26 so I'm not out yet, but I've got to plan for the next ammo/component shortage ;) . thanks
 
here is a powder chart from quickload . just watch the case fill % I have it set on 115% . I like to work in around 105% max , give or take a little . RL26 looks to be the ideal powder for this combo ,good velocity and good case fill .





Cartridge : .280 Ack Imp
Bullet : .284, 160, Nosler AccuBond 54932
Useable Case Capaci: 64.303 grain H2O = 4.175 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
or a maximum loading ratio or filling of 115 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
ReloadSwiss RS 76 *C 110.4 70.4 4.56 3139 100.0 65000 13496 1.124 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N570 *C 114.1 71.3 4.62 3125 96.1 65000 14434 1.130 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 80 *C 113.2 72.8 4.72 3109 98.4 65000 13907 1.135 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-26 *C 102.0 65.0 4.21 3086 100.0 65000 12554 1.148 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-33 *C 115.0 73.9 4.79 3082 96.0 63309 14158 1.145 ! Near Maximum !
Bofors RP30 113.4 67.2 4.36 3072 99.4 65000 13134 1.145 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 2 *C 113.4 67.2 4.36 3072 99.4 65000 13134 1.145 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25 *C 111.1 65.5 4.24 3066 100.0 65000 12220 1.135 !DANGEROUS LOAD-DO NOT USE!
Norma MRP *C 102.9 63.6 4.12 3065 100.0 65000 12727 1.145 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 *C 104.7 63.4 4.11 3061 98.7 65000 13116 1.140 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 517 107.3 67.9 4.40 3061 99.4 65000 12851 1.131 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 107.2 67.8 4.39 3060 99.4 65000 12826 1.131 !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO 104.9 66.1 4.28 3052 97.7 65000 13203 1.146 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 103.3 62.9 4.08 3048 99.1 65000 12676 1.130 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 109.2 62.9 4.08 3048 99.1 65000 12676 1.130 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N565 *C 109.5 66.7 4.32 3041 98.9 65000 12967 1.158 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-22 *C 105.0 62.9 4.08 3036 99.7 65000 12580 1.146 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15 *C 105.0 62.9 4.08 3036 99.7 65000 12580 1.146 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation 105.0 62.9 4.08 3036 99.7 65000 12580 1.146 !DANGEROUS LOAD-DO NOT USE!
Winchester WXR 107.8 63.2 4.10 3035 99.6 65000 12600 1.146 !DANGEROUS LOAD-DO NOT USE!
Bofors RP15 107.8 63.2 4.10 3035 99.6 65000 12600 1.146 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 70 *C 96.3 60.8 3.94 3034 100.0 65000 11822 1.136 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213 104.3 62.5 4.05 3034 99.0 65000 12570 1.129 !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214 108.1 66.5 4.31 3026 99.2 65000 12382 1.127 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H1000 *T 113.7 66.6 4.32 3023 99.2 65000 12343 1.127 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2217 113.7 66.6 4.32 3023 99.2 65000 12343 1.127 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2218 115.0 72.6 4.71 3022 94.3 60523 14296 1.159 ! Near Maximum !
ReloadSwiss RS 60 *T 93.4 58.1 3.76 3021 100.0 65000 11297 1.140 !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum 104.5 67.5 4.37 3016 99.9 65000 11980 1.138 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2225 115.0 68.5 4.44 3009 100.0 58814 12829 1.179 ! Near Maximum !
Hodgdon Retumbo 115.0 68.5 4.44 3009 100.0 58814 12829 1.179 ! Near Maximum !
Rottweil R905 106.2 62.5 4.05 3003 98.7 65000 12292 1.146 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5 NT *C ~approximation 108.0 65.3 4.23 2999 97.4 65000 12428 1.133 !DANGEROUS LOAD-DO NOT USE!
Bofors RL16 TZ *C *T 97.4 56.2 3.64 2998 100.0 65000 11212 1.139 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-16 *C *T 97.4 56.2 3.64 2998 100.0 65000 11212 1.139 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-17 *T 92.4 57.4 3.72 2997 100.0 65000 11216 1.148 !DANGEROUS LOAD-DO NOT USE!
Elcho 17 92.4 57.4 3.72 2997 100.0 65000 11216 1.148 !DANGEROUS LOAD-DO NOT USE!
 
thanks, I'm shooting 60.5 grs of R26 and its running 3065. 25" barrel. it looks like Magpro, Magnum, 7228ssc, N560 and a few others I never see around here are right there in that ideal range then. thanks again
 
The 100 series will always take more powder to get the same speed as to non compressed. A few cartridges will be an exception. I bought 160 and 165 for a try, but haven't used any yet. Not sure how much you can compress it? I have a load of blue dot near 120% .
 
Last edited:
I’ve been looking at N560 for a replacement for RL26 when I run out. It gives close to the case fill and only trails velocity by a short bit.
 
RL338 said:
I’ve been looking at N560 for a replacement for RL26 when I run out. It gives close to the case fill and only trails velocity by a short bit.
Click to expand...
560 is more available than other 500 series powders. 565 is becoming more available.
 
Not to speak for him, but JD338 has an incredible load running the 160 AB on top of RL22. It’s still an Alliant powder, but I’ve seen it around more than I have the mythical RL26. I had some promising work with 7828 before I got ahold of RL26 back in 2013. I tell you, after seeing JD’s success with the cartridge, I believe a lot of us jumped on the 280AI bandwagon.
V/R,
Joe
 
rmarshall said:
thanks, I'm shooting 60.5 grs of R26 and its running 3065. 25" barrel. it looks like Magpro, Magnum, 7228ssc, N560 and a few others I never see around here are right there in that ideal range then. thanks again
Click to expand...
With the prospects of close to same fps it's the performance that gets lost in moa. Wish it weren't so!
 
N565 and H1000 are virtually identical in my 6.5prc. With the same charge weight, 58grs with 147 ELD-M'S, the speeds are within 10fps. I shoot 55grs of R26 with the same 147's and get the same velocity as H1000 and N565.

I dont think you'll get close to R26 speed from N560. The burn rate might be similar but the energy is lower with N560.
 
I was surprised by the list of powders and how little variation there was in performance. Clearly accuracy is the key but seems like a lot of options…at least when the world goes back to normal.

Thanks Jim for the table.
 
I think Magpro might be worth a look.I haven't used it too much but I've been studying some of the Quick Load data DrMike has posted and it looks like it might be a close runner for Reloader 26.It's a real heavy by volume powder like Reloader 26.I want to try it in my 30-06's with 180gr + bullets.I can put 67.0grs in a Winchester 30-06 case and still have room to seat a bullet.Would I load that much in a case with a 180gr bullet?Probably not,but I plan on starting around 63.0grs,watch my velocity and pressure and see what it does.The burnrate is right there near the H1000,Reloader 26.
 
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