Powder for 150gr Accubond LR 270

[DrMike]

Jim is absolutely correct in pointing you to bullets that are thought to be less robust for taking deer. For more years than I care to remember, I used the 139 grain Hornady SP charged with WXR to take both mule deer and whitetail at distances out to 300 yards. Seldom did it require more than one bullet to drop deer. A cup-and-core bullet will work very well in standard rifles for thin-skinned game.

 

[bclark7b]

The ballistic tip will work very well for deer and other thin-skinned game. This bullet is recognised as a very accurate pill. The AccuBond is another bullet and performs well without being too fussy. It does like a longer jump than some other bullets. Any cup-and-core bullet will work well for you. I use the E-Tip in my Nosler 270 WSM. It has performed well for me in a variety of cartridges. With this bullet in the 270 WSM, I have taken whitetail, mule deer, black bear, moose, and elk. I find it to be a "do all" bullet.

I seem to have gotten into this at a bad time. There aren't many of the components available to buy. I had to scour the earth to find primers. I have some e-tips ordered now as well. So i will focus on those first, since from the replies it sounds like those may be easier to get right. Hopefully everything comes this week, and I'll start loading and experimenting. After that I'm sure I'll have more questions! Thanks again for the responses

 

[hunter24605]

Yep, it’s a tough time right now, but you’ll learn to squirrel away during the good times to float through the slime pickings. Try signing up with shootingbot. You’ll be surprised just how often your alert items come back in stock, although usually they’re gone pretty quick. You should find the e-tip pretty easy to find a load for. Just always start at the lower end of the data, they build pressure quick.
And don’t be afraid to jump them, .050” is a good place to start.

 

[bclark7b]

Yep, it’s a tough time right now, but you’ll learn to squirrel away during the good times to float through the slime pickings. Try signing up with shootingbot. You’ll be surprised just how often your alert items come back in stock, although usually they’re gone pretty quick. You should find the e-tip pretty easy to find a load for. Just always start at the lower end of the data, they build pressure quick.
And don’t be afraid to jump them, .050” is a good place to start.

Yeah, I was able to do that with factory ammo luckily. I will look into shootingbot! Could you explain what "Jump them" means? Thanks!

 

[hunter24605]

Yeah, I was able to do that with factory ammo luckily. I will look into shootingbot! Could you explain what "Jump them" means? Thanks!

Jump is the amount of “free travel” before the bullet’s ogive contacts the rifling/lands in the barrel. He breaks it all down real well here.

 

[bclark7b]

Jump is the amount of “free travel” before the bullet’s ogive contacts the rifling/lands in the barrel. He breaks it all down real well here.

Thank you so much!

 

[jimbires]

here are these in stock .

ShootersProShop

Explore the world of Nosler, renowned for crafting the finest bullets, ammunition, rifles, and brass. Discover our extensive lineup, including Partition, AccuBond, E-Tip, Ballistic Tip, Custom Competition, and more. Experience superior quality and performance with Nosler products.

www.shootersproshop.com

these seem to be available often , but I don't think your barrel would be twisted fast enough to use them with good results .

ShootersProShop

Explore the world of Nosler, renowned for crafting the finest bullets, ammunition, rifles, and brass. Discover our extensive lineup, including Partition, AccuBond, E-Tip, Ballistic Tip, Custom Competition, and more. Experience superior quality and performance with Nosler products.

www.shootersproshop.com

 

[bclark7b]

here are these in stock .

ShootersProShop

Explore the world of Nosler, renowned for crafting the finest bullets, ammunition, rifles, and brass. Discover our extensive lineup, including Partition, AccuBond, E-Tip, Ballistic Tip, Custom Competition, and more. Experience superior quality and performance with Nosler products.

www.shootersproshop.com

these seem to be available often , but I don't think your barrel would be twisted fast enough to use them with good results .

ShootersProShop

Explore the world of Nosler, renowned for crafting the finest bullets, ammunition, rifles, and brass. Discover our extensive lineup, including Partition, AccuBond, E-Tip, Ballistic Tip, Custom Competition, and more. Experience superior quality and performance with Nosler products.

www.shootersproshop.com

Thanks for the info! I have a Christensen Arms Ridgeline which has 24in and 1-10 so those 170gr wouldn't work for me.

 

[bclark7b]

Welcome aboard, and nothing dumb about your question. It is a challenge that each of us has faced early in our efforts to feed our habit.

Chances are that the loading manuals you bought don't list that particular bullet simply because they focused on their own product or the powders do not provide optimal performance. Perhaps other powders provide higher velocities or better case fills or more complete combustion. This does not mean that the powders you have will not work or that they are unsafe. You will find data for the Nosler ABLR at this url: https://www.nosler.com/270-winchester.

QuickLoad allows us to make a few projections that may address the specific question concerning that particular bullet with the powders you have available.

Cartridge          : .270 Win. (SAAMI)
Bullet             : .277, 150, Nosler Accubond LR 58836 G7
Useable Case Capaci: 58.520 grain H2O = 3.800 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Ramshot Hunter

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   89    49.50   2627    2299   46141  11559     97.9    1.266
-09.0   90    50.05   2656    2349   47656  11676     98.2    1.247
-08.0   91    50.60   2684    2400   49218  11787     98.5    1.228
-07.0   92    51.15   2713    2451   50830  11894     98.8    1.210
-06.0   93    51.70   2741    2502   52495  11996     99.0    1.191
-05.0   94    52.25   2769    2554   54212  12094     99.2    1.174
-04.0   95    52.80   2797    2606   55986  12186     99.4    1.157  ! Near Maximum !
-03.0   96    53.35   2825    2659   57818  12273     99.6    1.140  ! Near Maximum !
-02.0   97    53.90   2853    2711   59709  12355     99.7    1.123  ! Near Maximum !
-01.0   98    54.45   2881    2765   61663  12431     99.8    1.107  ! Near Maximum !
+00.0   99    55.00   2909    2818   63682  12502     99.9    1.091  ! Near Maximum !
+01.0  100    55.55   2937    2872   65768  12567    100.0    1.075  !DANGEROUS LOAD-DO NOT USE!
+02.0  101    56.10   2964    2926   67924  12626    100.0    1.059  !DANGEROUS LOAD-DO NOT USE!
+03.0  102    56.65   2992    2981   70153  12680    100.0    1.044  !DANGEROUS LOAD-DO NOT USE!
+04.0  103    57.20   3019    3035   72458  12731    100.0    1.029  !DANGEROUS LOAD-DO NOT USE!
+05.0  104    57.75   3046    3090   74841  12782    100.0    1.015  !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   3021    3040   75946  12046    100.0    1.013  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     99    55.00   2745    2509   51614  12506     96.4    1.193

Cartridge          : .270 Win. (SAAMI)
Bullet             : .277, 150, Nosler Accubond LR 58836 G7
Useable Case Capaci: 58.520 grain H2O = 3.800 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : IMR 4831

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   93    48.06   2610    2268   46634  11046     99.3    1.278
-09.0   94    48.59   2637    2316   48154  11135     99.5    1.259
-08.0   95    49.13   2664    2364   49721  11219     99.6    1.240
-07.0   96    49.66   2691    2412   51338  11299     99.8    1.221
-06.0   97    50.20   2718    2461   53007  11373     99.9    1.203
-05.0   98    50.73   2745    2510   54728  11442     99.9    1.185
-04.0   99    51.26   2772    2559   56504  11505    100.0    1.168  ! Near Maximum !
-03.0  100    51.80   2798    2608   58337  11563    100.0    1.151  ! Near Maximum !
-02.0  101    52.33   2825    2658   60229  11618    100.0    1.134  ! Near Maximum !
-01.0  102    52.87   2851    2708   62182  11672    100.0    1.118  ! Near Maximum !
+00.0  103    53.40   2878    2758   64198  11724    100.0    1.101  ! Near Maximum !
+01.0  104    53.93   2904    2808   66282  11776    100.0    1.086  !DANGEROUS LOAD-DO NOT USE!
+02.0  105    54.47   2930    2859   68433  11827    100.0    1.070  !DANGEROUS LOAD-DO NOT USE!
+03.0  106    55.00   2956    2909   70656  11877    100.0    1.055  !DANGEROUS LOAD-DO NOT USE!
+04.0  107    55.54   2981    2960   72953  11926    100.0    1.040  !DANGEROUS LOAD-DO NOT USE!
+05.0  109    56.07   3007    3012   75328  11975    100.0    1.025  !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    53.40   2977    2951   76492  11297    100.0    1.023  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    103    53.40   2727    2477   52012  12036     98.3    1.207

If you use this projection, remember to drop back about four or five grains as you begin to work up your load. If you have further questions, don't hesitate to ask. Someone will be very glad to provide whatever assistance they can.

Again, welcome aboard.

Hello DrMike, I've now got my cleaned, sized, and primed cases ready for powder. I noticed the chart you gave was for a 22" barrell. I have a 24" barrell and wasn't sure if that made a difference or not. Also my plan is to load 10 cases starting with -10% and working up to 00% then shooting them with the chronograph while checking for pressure issues. That seems to be what most people are telling me to do. Is that correct? Thank you!

 

[DrMike]

You appear to have a solid grasp of what is necessary. The only difference in the data provided and that which you generate will be that your velocities will be somewhat faster with the longer barrel. Roughly, you can estimate about 25 fps for each additional inch of barrel length. Chamber pressure, which is what the shooter must always be aware as the potential for problems, is unaffected by barrel length.

BTW, God has blessed you with some lovely girls. And pictured near the sunflowers! Being a KS native, I do love sunflowers. We enjoyed two daughters in our home before they were joined by a brother. The children were always a joy for me, but my daughters were a special joy; they were definitely daddy's girls--and still are to a great extent. Congratulations on a lovely family.

 

[DrMike]

Cartridge          : .270 Win. (SAAMI)
Bullet             : .277, 150, Nosler Accubond LR 58836 G7
Useable Case Capaci: 58.520 grain H2O = 3.800 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Ramshot Hunter

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   89    49.50   2689    2408   46141  10474     98.5    1.328
-09.0   90    50.05   2717    2459   47656  10570     98.7    1.309
-08.0   91    50.60   2746    2511   49218  10662     99.0    1.289
-07.0   92    51.15   2774    2563   50830  10750     99.2    1.270
-06.0   93    51.70   2802    2615   52495  10833     99.4    1.252
-05.0   94    52.25   2830    2668   54212  10912     99.6    1.233
-04.0   95    52.80   2858    2721   55986  10986     99.7    1.216  ! Near Maximum !
-03.0   96    53.35   2886    2774   57818  11055     99.8    1.198  ! Near Maximum !
-02.0   97    53.90   2914    2828   59709  11119     99.9    1.181  ! Near Maximum !
-01.0   98    54.45   2941    2882   61663  11178    100.0    1.164  ! Near Maximum !
+00.0   99    55.00   2969    2936   63682  11232    100.0    1.147  ! Near Maximum !
+01.0  100    55.55   2996    2991   65768  11281    100.0    1.131  !DANGEROUS LOAD-DO NOT USE!
+02.0  101    56.10   3024    3045   67924  11328    100.0    1.115  !DANGEROUS LOAD-DO NOT USE!
+03.0  102    56.65   3051    3100   70153  11373    100.0    1.099  !DANGEROUS LOAD-DO NOT USE!
+04.0  103    57.20   3078    3155   72458  11418    100.0    1.084  !DANGEROUS LOAD-DO NOT USE!
+05.0  104    57.75   3105    3211   74841  11462    100.0    1.069  !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   3077    3154   75946  10809    100.0    1.068  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     99    55.00   2808    2627   51614  11349     97.1    1.253

 

[DrMike]

Cartridge          : .270 Win. (SAAMI)
Bullet             : .277, 150, Nosler Accubond LR 58836 G7
Useable Case Capaci: 58.520 grain H2O = 3.800 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : IMR 4831

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   93    48.06   2669    2372   46634   9963     99.6    1.341
-09.0   94    48.59   2696    2421   48154  10034     99.8    1.321
-08.0   95    49.13   2723    2469   49721  10101     99.9    1.302
-07.0   96    49.66   2750    2519   51338  10164     99.9    1.283
-06.0   97    50.20   2777    2568   53007  10221    100.0    1.264
-05.0   98    50.73   2803    2618   54728  10274    100.0    1.245
-04.0   99    51.26   2830    2667   56504  10323    100.0    1.227  ! Near Maximum !
-03.0  100    51.80   2856    2717   58337  10372    100.0    1.210  ! Near Maximum !
-02.0  101    52.33   2882    2767   60229  10419    100.0    1.192  ! Near Maximum !
-01.0  102    52.87   2909    2818   62182  10466    100.0    1.175  ! Near Maximum !
+00.0  103    53.40   2935    2868   64198  10512    100.0    1.159  ! Near Maximum !
+01.0  104    53.93   2960    2919   66282  10558    100.0    1.142  !DANGEROUS LOAD-DO NOT USE!
+02.0  105    54.47   2986    2970   68433  10602    100.0    1.126  !DANGEROUS LOAD-DO NOT USE!
+03.0  106    55.00   3012    3021   70656  10646    100.0    1.111  !DANGEROUS LOAD-DO NOT USE!
+04.0  107    55.54   3037    3073   72953  10689    100.0    1.095  !DANGEROUS LOAD-DO NOT USE!
+05.0  109    56.07   3063    3125   75328  10731    100.0    1.080  !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    53.40   3030    3057   76492  10129    100.0    1.079  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    103    53.40   2789    2591   52012  10877     98.8    1.267

 

[SJB358]

it was mentioned above , these ABLR bullets can be tough to get to work well . if things don't go well , consider a different bullet before you burn up all your powder and bullets . usually ballistic tips are easy to tune .

Was just going to say that. If by chance the ABLRs aren’t grouping, I’d likely swap to another 150 grain bullet and try that first before I went nuts changing things too broadly. Great bullets when they shoot, but they can make a fella nuts when you try to force them.

 

[hunter24605]

Was just going to say that. If by chance the ABLRs aren’t grouping, I’d likely swap to another 150 grain bullet and try that first before I went nuts changing things too broadly. Great bullets when they shoot, but they can make a fella nuts when you try to force them.

Yes, I only got them to shoot good in one rifle, a Savage High Country 6.5 PRC. All the others turned out to be pretty bad. And I tried everything, except loading them backwards...Hopefully someone will figure out the intricacies of how to get the accuracy of the box ammo.

 

[TackDriver284]

Was just going to say that. If by chance the ABLRs aren’t grouping, I’d likely swap to another 150 grain bullet and try that first before I went nuts changing things too broadly. Great bullets when they shoot, but they can make a fella nuts when you try to force them.

Happened once to me.

 

[bclark7b]

You appear to have a solid grasp of what is necessary. The only difference in the data provided and that which you generate will be that your velocities will be somewhat faster with the longer barrel. Roughly, you can estimate about 25 fps for each additional inch of barrel length. Chamber pressure, which is what the shooter must always be aware as the potential for problems, is unaffected by barrel length.

BTW, God has blessed you with some lovely girls. And pictured near the sunflowers! Being a KS native, I do love sunflowers. We enjoyed two daughters in our home before they were joined by a brother. The children were always a joy for me, but my daughters were a special joy; they were definitely daddy's girls--and still are to a great extent. Congratulations on a lovely family.

Thanks DrMike! We have definitely been blessed. The smaller one is actually a boy so we have a boy and a girl, but our daughter has been bugging us for a sister and hopefully we'll be adding to the family soon. Good to hear your daughters are still daddy's girls! I'm hoping mine will be as long as I'm still breathing.
Last question before I go shoot these things. I used a hornady OAL gauge and got a measurement of 3.386 so i tried to set my rounds to 3.336 but they ended up 3.334 give or take .001. I had some factory ammo that used this same 150gr ABLR and the OAL on those is 3.245! I was confident with my numbers until I saw that, and then I started second guessing myself. Is factory ammo just that different, or did I make a mistake somewhere? Thanks again for all the information you have given!

 

[bclark7b]

Well I fired 11 rounds and didn't blow myself, or my rifle up, so I've got that going for me. My velocities were pretty consistent with what they were supposed to be except for a few. So now that I've finished that I'm wondering what is next? Do I now play around with jump and check my groups to see what the rifle likes best? Like people have mentioned I'm not going to spend too much time on these if I can't get them in really tight groups, but I think I can do better than I was doing yesterday when I shot them. Also I'm wondering if changing the OAL will affect the pressure at all? Thanks everyone!

 

[Slimfinn]

First of all congrats on not blowing yourself up! And making your own ammo.
You want to take those 11 charges and decide what powder charge/charges give you a good "node" to take advantage of. Do you have the list of charges and velocity you can post? Also did you happen to shoot them all at the same target?

 

[jimbires]

playing with seating depth will change pressures . this change is nothing to worry about if you are not at , or very close to , max powder charges . you will get the highest pressures when the bullet is jammed into the rifling . if this is where the bullet wants to shoot , back off on the powder and work up while watching for pressure signs .

with the LRAB bullets , I don't think you'll be jammed into the rifling . these bullets seem to like a jump .

 

[brucel]

Don't give up on the ABLR !
I loaded some up with what I had on hand and it has turned out to be the most accurate load I've ever had out of my grandfather's .270 that I inherited. I've loaded for this rifle for 50 years and there are a couple of very nice loads I've come up with (sub-MOA) but I can't get the powders, standard large rifle primers, or bullets right now so I experimented and it paid off (IMR7828SSC, Fed 215 magnum primers and the 150 ABLR - it settled in a couple of grains below the Nosler manual max load). Younger son killed 4 deer with this last season and I will be taking it as my backup rifle on an elk hunt this fall).
Oh, yeah - it took me a lot of years to realize that group size (accuracy) was paramount - not a particular velocity.