nosler 7mm long range accubonds

[wisdeerkiller]

I have a browning a bolt in 7mm rem mag and where I hunt here in Wisconsin I can shoot deer up to 700 yards. Also I am considering buying a rem 700 7mm rem mag (bull barrel) because I shoot my 308 1000 yards and I want to shoot farther.

Now the question is am I better off shooting the 150 or the 175 LRAB?

the drop of these 2 bullets in mils with the most accurate load of imr 4831(10mph wind)

bullets 1000 wind 1500 wind
150(3000fps) 6.8 1.7 14.3 2.9
175(2700fps) 8.3 1.7 17.0 3.0

normally heavier bullets are better at long distances or at least get better than the lighter bullets from what I've ever looked at before

So am I wrong thinking with these bullets the 150s are the better bullet or am I missing something. I am using exbal ballistic software.

Thanks

 

[cohunter14]

Assuming that the inputs are all correct, then yes the 150 is looking better. I would make sure you verify all of the numbers though. If the velocity changes a bit or the elevation, temp, etc, that could change those numbers. Also, make sure you are using the verified BC's of the bullets and not the advertised numbers from Nosler as those appear to be incorrect.

 

[Ridgerunner665]

I've been looking over sorta the same thing...except with 150's and 168's in a 280 Ackley...

150 ABLR @ 3,100 fps drifts 1" less than the 168 ABLR fired at 2,900 fps...at 1,000 yards....and yes my inputs are correct (Litz BC's and several different atmospheric data scenarios)...20 mph crosswind.


Its a "time of flight" thing...the VERY good BC of the 150 helps it hang on to more of that 3,100 fps...pretty simple really...the Ackley just can't push the 168 grain bullet enough faster to make use of the better BC...an STW would be a different story, but just barely.

For non-magnum 7mm rounds (280, 280 AI, 7mm-08, etc.)...the Nosler 150 grain Accubond LR is the best bullet available, by the numbers at least (very good BC and high muzzle velocity, potent combination)....it takes at least an STW to see any benefit from the heavier bullets, and even then its only beyond 1,200 yards, which is beyond the ideal hunting range of even the STW...in other words, useless except for paper punching.

In a nutshell...the 150 ABLR hit a sweet spot....light enough to shoot fast, long enough to have a high BC...similar to the 129 ABLR (6.5mm)

ETA: I'm using Applied Ballistics for Android to generate the data.

 

[KYpatriot]

I have a browning a bolt in 7mm rem mag and where I hunt here in Wisconsin I can shoot deer up to 700 yards. Also I am considering buying a rem 700 7mm rem mag (bull barrel) because I shoot my 308 1000 yards and I want to shoot farther.

Now the question is am I better off shooting the 150 or the 175 LRAB?

the drop of these 2 bullets in mils with the most accurate load of imr 4831(10mph wind)

bullets 1000 wind 1500 wind
150(3000fps) 6.8 1.7 14.3 2.9
175(2700fps) 8.3 1.7 17.0 3.0

normally heavier bullets are better at long distances or at least get better than the lighter bullets from what I've ever looked at before

So am I wrong thinking with these bullets the 150s are the better bullet or am I missing something. I am using exbal ballistic software.

Thanks

It seems to me that you should be able to get the 175 alot faster than that. I shoot berger 180 hybrids close to 3000. The 175 LRAB wont be as fast as the 180 hybrid because the bearing surface is a little longer on the accubond, but I am confident you will see them faster than 2700. TRy h1000 or REtumbo.

Also, dont overlook some other offerings for hunting. You can use the bonded bullets for close shots since they hold together so well and something like the 180 hybrid for longer range when the impact velocity is lower. A recent shot I took at 410 yards with a hybrid was downright impressive, bang flop on a heavy whitetail.

You are gonna love that 7mm!

 

[wisdeerkiller]

Thanks for all the input.

How accurate are you shooting those 180s?

My imr setup in 1/2" at 100.

I will not give up accuracy for 100 or 200fps.

 

[Ingwe]

I shoot 168 ABLR's out of my 7mmRemMag 26" 1:9 barrel at 3,128fps with 79.3gr of RL-33....super accurate

 

[KYpatriot]

Thanks for all the input.

How accurate are you shooting those 180s?

My imr setup in 1/2" at 100.

I will not give up accuracy for 100 or 200fps.

Hybrids are accurate bullets. Like every rifle I have loaded fur, there are several accuracy nodes. You just pick one at the velocity you want at an acceptable pressure. If you are happy at those velocities I see no reason to change it, but it sounded like you were looking for the best performance and that lies at the higher nodes with a different powder. If you have a 1/2 in rifle with one powder it will shoot others too.
Load workup is a hassle so if you like what you got I'd go with it. It is great performance just the way it is already.

 

[Ingwe]

I will say however that I have not killed a big game animal with the ABLR yet....a bunch of Prairie Dogs though....

Have any of you and what was the result?

I did kill a bunch of BG with regular AB's

 

[elkthumper]

I've been looking over sorta the same thing...except with 150's and 168's in a 280 Ackley...

150 ABLR @ 3,100 fps drifts 1" less than the 168 ABLR fired at 2,900 fps...at 1,000 yards....and yes my inputs are correct (Litz BC's and several different atmospheric data scenarios)...20 mph crosswind.


Its a "time of flight" thing...the VERY good BC of the 150 helps it hang on to more of that 3,100 fps...pretty simple really...the Ackley just can't push the 168 grain bullet enough faster to make use of the better BC...an STW would be a different story, but just barely.

For non-magnum 7mm rounds (280, 280 AI, 7mm-08, etc.)...the Nosler 150 grain Accubond LR is the best bullet available, by the numbers at least (very good BC and high muzzle velocity, potent combination)....it takes at least an STW to see any benefit from the heavier bullets, and even then its only beyond 1,200 yards, which is beyond the ideal hunting range of even the STW...in other words, useless except for paper punching.

In a nutshell...the 150 ABLR hit a sweet spot....light enough to shoot fast, long enough to have a high BC...similar to the 129 ABLR (6.5mm)

ETA: I'm using Applied Ballistics for Android to generate the data.

Ridgerunner, what powder do you prefer with those 150's?

 

[Ridgerunner665]

Haven't actually fired any yet...rifle isn't finished (any day now)...

That said, I have Norma MRP...but am keeping an eye on a couple of the new powders too (Reloder 23, IMR 7977)...

And I'm quite sure IMR 7828 ssc will be a good one too...

Cartridge          : .280 Ack Imp Nosler brass
Bullet             : .284, 150, Nosler Accubond LR 58734 G7
Useable Case Capaci: 65.712 grain H2O = 4.267 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 61000 psi, or 420 MPa
or a maximum loading ratio or filling of 107 %
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 !

76 loads produced a Loading Ratio below user-defined minimum of 85%. These powders have been skipped.
Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Norma MRP                          102.0     64.5     4.18    3108    99.8    61000   12895   1.145  ! Near Maximum !
Vihtavuori N560                    103.7     64.2     4.16    3099    97.8    61000   13152   1.141  ! Near Maximum !
Accurate MAGPRO                    104.0     67.0     4.34    3087    96.4    61000   13200   1.148  ! Near Maximum !
IMR 7828 SSC                       102.4     63.7     4.13    3085    98.1    61000   12735   1.132  ! Near Maximum !
Alliant Reloder-22                 104.0     63.7     4.13    3076    99.1    61000   12675   1.147  ! Near Maximum !
Winchester WXR                     106.8     64.0     4.15    3074    99.0    61000   12687   1.148  ! Near Maximum !
Ramshot Magnum                     103.8     68.5     4.44    3057    99.5    61000   12132   1.139  ! Near Maximum !
Alliant Reloder-17                  91.4     58.1     3.76    3049   100.0    61000   11368   1.147  ! Near Maximum !
IMR 7828                           107.0     63.0     4.08    3047    97.8    58659   12625   1.153  ! Near Maximum !
Alliant Reloder-19                 100.6     61.0     3.95    3030    99.0    61000   12059   1.146  ! Near Maximum !
Ramshot Hunter                      96.2     60.1     3.90    3025   100.0    61000   11692   1.152  ! Near Maximum !
Hodgdon H414                        90.8     58.2     3.77    3023    99.7    61000   11732   1.154  ! Near Maximum !
Winchester 760                      90.8     58.2     3.77    3023    99.7    61000   11732   1.154  ! Near Maximum !
Alliant Reloder-25                 107.0     64.5     4.18    3020   100.0    55127   12296   1.189
Norma 204                           95.4     59.7     3.87    3006    98.8    61000   11746   1.146  ! Near Maximum !
Norma URP                           95.7     57.3     3.72    3004   100.0    61000   11188   1.159  ! Near Maximum !
Vihtavuori N550                     92.9     57.5     3.73    3004   100.0    61000   11322   1.163  ! Near Maximum !
Hodgdon H4831                      105.9     62.4     4.04    3003    97.4    61000   11867   1.143  ! Near Maximum !
Hodgdon H4831 SC                   101.8     62.4     4.04    3003    97.4    61000   11867   1.143  ! Near Maximum !

 

[elkthumper]

Thanks for the info I'll keep an eye on this thread. I walked in to McGowen yesterday and they had a 280ai barrel on the shelf for my savage. Just getting started myself.

 

[icebug]

Hi folks!
Beside HDY ELD-X bullets, I'm considering the ABLR for a 7mm Rem Mag 26" barrel that I have on order. My only concern is a relatively slow twist rate, 1:9.5", which will, according to Bryan's test results, not stabilize even the lightest of the ABLR's (150grs).
Do you guys recommend that I should even give it a try or should I just forget about it?
QuickLoad guesstimated velocity is almost 3200 fps and I'm looking into hunting medium sized game (such as chamois in Europe) up to 1000 yds.
Thanks for your inputs in advance!