Imr 4064 130 gameking 6.5 creedmoor

[Michael C. Smith]

Thought I would just try something different. Never heard of anyone running this powder in a creedmoor. Ist shot is the low one on a warm barrel next 3 went through the same hole and I pulled the 5 one as normal!

Peterson brass 2nd firing 50.2 water capacity
Imr 4064 37.5g
Fed 210 primer
130 gameking
2.800 coal
22in. Savage 16 6.5 creedmoor
100 yards

Book says 2700fps 37.6 is max. Brass looked good. Could someone run the numbers for me please.
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[DrMike]

That's a pretty mild load. It assuredly has room for an increased charge. However, accuracy does look to be good.

Cartridge          : 6.5 Creedmoor Hornady
Bullet             : .264, 130, Sierra HP GK 1728
Useable Case Capaci: 50.609 grain H2O = 3.286 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : IMR 4064

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   85    37.35   2593    1941   46929   9715     99.4    1.249
-09.0   86    37.77   2618    1978   48293   9796     99.5    1.232
-08.0   87    38.18   2642    2015   49693   9873     99.7    1.216
-07.0   88    38.60   2666    2052   51130   9947     99.8    1.200
-06.0   89    39.01   2691    2090   52604  10018     99.9    1.184
-05.0   89    39.43   2715    2128   54118  10085     99.9    1.169  ! Near Maximum !
-04.0   90    39.84   2739    2166   55672  10148    100.0    1.153  ! Near Maximum !
-03.0   91    40.26   2763    2204   57268  10208    100.0    1.138  ! Near Maximum !
-02.0   92    40.67   2787    2242   58907  10265    100.0    1.124  ! Near Maximum !
-01.0   93    41.09   2810    2280   60589  10320    100.0    1.109  ! Near Maximum !
+00.0   94    41.50   2834    2318   62317  10375    100.0    1.095  ! Near Maximum !
+01.0   95    41.92   2857    2357   64091  10428    100.0    1.082  !DANGEROUS LOAD-DO NOT USE!
+02.0   96    42.33   2881    2395   65914  10482    100.0    1.068  !DANGEROUS LOAD-DO NOT USE!
+03.0   97    42.75   2904    2434   67786  10535    100.0    1.055  !DANGEROUS LOAD-DO NOT USE!
+04.0   98    43.16   2927    2473   69710  10587    100.0    1.042  !DANGEROUS LOAD-DO NOT USE!
+05.0   99    43.58   2950    2512   71687  10639    100.0    1.029  !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     94    41.50   2916    2455   72056  10046    100.0    1.030  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     94    41.50   2711    2121   52510  10603     98.5    1.183

 

[Michael C. Smith]

That's a pretty mild load. It assuredly has room for an increased charge. However, accuracy does look to be good.

Cartridge          : 6.5 Creedmoor Hornady
Bullet             : .264, 130, Sierra HP GK 1728
Useable Case Capaci: 50.609 grain H2O = 3.286 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : IMR 4064

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   85    37.35   2593    1941   46929   9715     99.4    1.249
-09.0   86    37.77   2618    1978   48293   9796     99.5    1.232
-08.0   87    38.18   2642    2015   49693   9873     99.7    1.216
-07.0   88    38.60   2666    2052   51130   9947     99.8    1.200
-06.0   89    39.01   2691    2090   52604  10018     99.9    1.184
-05.0   89    39.43   2715    2128   54118  10085     99.9    1.169  ! Near Maximum !
-04.0   90    39.84   2739    2166   55672  10148    100.0    1.153  ! Near Maximum !
-03.0   91    40.26   2763    2204   57268  10208    100.0    1.138  ! Near Maximum !
-02.0   92    40.67   2787    2242   58907  10265    100.0    1.124  ! Near Maximum !
-01.0   93    41.09   2810    2280   60589  10320    100.0    1.109  ! Near Maximum !
+00.0   94    41.50   2834    2318   62317  10375    100.0    1.095  ! Near Maximum !
+01.0   95    41.92   2857    2357   64091  10428    100.0    1.082  !DANGEROUS LOAD-DO NOT USE!
+02.0   96    42.33   2881    2395   65914  10482    100.0    1.068  !DANGEROUS LOAD-DO NOT USE!
+03.0   97    42.75   2904    2434   67786  10535    100.0    1.055  !DANGEROUS LOAD-DO NOT USE!
+04.0   98    43.16   2927    2473   69710  10587    100.0    1.042  !DANGEROUS LOAD-DO NOT USE!
+05.0   99    43.58   2950    2512   71687  10639    100.0    1.029  !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     94    41.50   2916    2455   72056  10046    100.0    1.030  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     94    41.50   2711    2121   52510  10603     98.5    1.183

Wow that is low. I am using a coal of 2.800 instead of 2.675. Her is a pic of the load data. I wonder why it is so far off? Do you trust quickload with imr 4064? That's a pretty big difference all the way up too 41 grains.

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[DrMike]

The data I provided is for 2.800 OAL. I did generate the data for the 130 grain Game King and not for the 130 grain HPBT. When data is adjusted to reflect an OAL of 2.670, the maximum charge is significantly reduced.

Cartridge          : 6.5 Creedmoor Hornady
Bullet             : .264, 130, Sierra HP GK 1728
Useable Case Capaci: 48.807 grain H2O = 3.169 cm³
Cartridge O.A.L. L6: 2.670 inch = 67.82 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : IMR 4064

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   88    37.35   2634    2003   49944   9597     99.6    1.215
-09.0   89    37.77   2659    2041   51437   9671     99.7    1.198
-08.0   90    38.18   2684    2080   52972   9742     99.8    1.182
-07.0   91    38.60   2709    2118   54549   9809     99.9    1.166  ! Near Maximum !
-06.0   92    39.01   2734    2157   56170   9872    100.0    1.151  ! Near Maximum !
-05.0   93    39.43   2758    2196   57836   9932    100.0    1.136  ! Near Maximum !
-04.0   94    39.84   2783    2235   59549   9988    100.0    1.121  ! Near Maximum !
-03.0   95    40.26   2807    2274   61311  10041    100.0    1.106  ! Near Maximum !
-02.0   96    40.67   2831    2314   63122  10094    100.0    1.092  !DANGEROUS LOAD-DO NOT USE!
-01.0   97    41.09   2855    2353   64984  10146    100.0    1.078  !DANGEROUS LOAD-DO NOT USE!
+00.0   98    41.50   2879    2393   66900  10197    100.0    1.064  !DANGEROUS LOAD-DO NOT USE!
+01.0   99    41.92   2903    2432   68870  10248    100.0    1.050  !DANGEROUS LOAD-DO NOT USE!
+02.0  100    42.33   2926    2472   70898  10298    100.0    1.037  !DANGEROUS LOAD-DO NOT USE!
+03.0  101    42.75   2950    2512   72984  10348    100.0    1.024  !DANGEROUS LOAD-DO NOT USE!
+04.0  102    43.16   2974    2552   75131  10397    100.0    1.011  !DANGEROUS LOAD-DO NOT USE!
+05.0  103    43.58   2997    2593   77341  10445    100.0    0.998  !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     98    41.50   2959    2528   77434   9873    100.0    1.001  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     98    41.50   2758    2196   56294  10481     98.8    1.147  ! Near Maximum !

There is no significant difference when I generate data for the 130 grain HPBT at 2.800 inches, however.

Cartridge          : 6.5 Creedmoor Hornady
Bullet             : .264, 130, Sierra HP GK 1728
Useable Case Capaci: 50.608 grain H2O = 3.286 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : IMR 4064

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   85    37.35   2593    1941   46930   9715     99.4    1.249
-09.0   86    37.77   2618    1978   48294   9796     99.5    1.232
-08.0   87    38.18   2642    2015   49694   9873     99.7    1.216
-07.0   88    38.60   2666    2052   51131   9947     99.8    1.200
-06.0   89    39.01   2691    2090   52606  10018     99.9    1.184
-05.0   89    39.43   2715    2128   54120  10085     99.9    1.168  ! Near Maximum !
-04.0   90    39.84   2739    2166   55674  10148    100.0    1.153  ! Near Maximum !
-03.0   91    40.26   2763    2204   57270  10208    100.0    1.138  ! Near Maximum !
-02.0   92    40.67   2787    2242   58908  10265    100.0    1.124  ! Near Maximum !
-01.0   93    41.09   2810    2280   60591  10320    100.0    1.109  ! Near Maximum !
+00.0   94    41.50   2834    2318   62318  10374    100.0    1.095  ! Near Maximum !
+01.0   95    41.92   2857    2357   64093  10428    100.0    1.082  !DANGEROUS LOAD-DO NOT USE!
+02.0   96    42.33   2881    2395   65916  10482    100.0    1.068  !DANGEROUS LOAD-DO NOT USE!
+03.0   97    42.75   2904    2434   67788  10535    100.0    1.055  !DANGEROUS LOAD-DO NOT USE!
+04.0   98    43.16   2927    2473   69712  10587    100.0    1.042  !DANGEROUS LOAD-DO NOT USE!
+05.0   99    43.58   2950    2512   71689  10638    100.0    1.029  !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     94    41.50   2916    2455   72058  10046    100.0    1.030  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     94    41.50   2711    2121   52512  10603     98.5    1.183

I do like the Sierra HPBT bullet; it is a superb big game bullet.

Yes, I do like the QL data. Like all data, you must be responsible for what you do, working up the load and watching for pressure signs. Pressure limits and velocities are subject to the effects of differing lot numbers, temperature, etc. Many of the differences between published data can be understood by normal differences in components and in lot-to-lot variation. For this reason, even pressure-tested data must be viewed as a guide, and the handloader must accept responsibility to ensure that his/her load is safe in the test system.

 

[Michael C. Smith]

Ok thanks Dr Mike. I will probably work it on up and see what it shows. Which at 100 yards or less that we will use this load for it would be fine at the 2600fps. If I could get up to around 2800 it would probably be better for longer distance. At the 2600 you could probably drive it right through the shoulders of our Alabama whitetail and it would probably stay together. It's just odd to me for the max charge to be that far off.

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[DrMike]

Note that Sierra data is for a 24 inch barrel, whereas the data QL generated is for a 22 inch barrel. While this will have no discernable effect on maximum chamber pressure, it will affect velocity. I do like to track velocity, understanding that there is a rough correlation to chamber pressure throughout the early portion of the pressure curve.

 

[Michael C. Smith]

Ok I will kept that in mind. I was going to bring the chrony to work today but the weather is sunny then cloudy. Didn't figure it would work to well today.

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[SJB358]

Bet it is a really mild shooting load as well. I am digging all of the CM data and shooting around this place.. Hard not to like what it is doing for you all.

 

[Michael C. Smith]

Bet it is a really mild shooting load as well. I am digging all of the CM data and shooting around this place.. Hard not to like what it is doing for you all.

Yea it was really mild. I am going to try it at some longer distance and see how it does before I try to juice it up. If it still shoots sub moa I may just leave it alone. The only bullet that I have not been able to get to shoot constantly is the 135 berger classic hunters.

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[Cleveland48]

Been wondering about that 130 HPBT gameking. Never tried it in mine, but I hear it is a tough bullet. Tougher than the 140 sp gameking which is one of my favorite bullets.


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[gerry]

I can't help with the 6.5 Creedmoor loads but did shoot a mule deer doe with my 260 Rem at 200 yards last fall with the Sierra 130 gr HPBT started at 2900 fps. My sample of one left me impressed and I have no problems using them again. It left an exit wound around 1 1/2" if I remember right and a blood trail a blind man could follow, deer was down in about 20 yards or so.

 

[wildgene]

...I've used the .25/ 120gr., 6.5/130gr. on deer & antelope, the 7mm/160gr. & .30/ 165gr. Sierra HPBT GameKings on deer & elk, consistently accurate, might not be the highest B.C., but you can't argue the effectiveness of their terminal ballistics...

 

[bdbrown66]

@DrMike I know this is an old thread, but I'm wondering if you would mind revisiting it? I've been working up some loads for my 6.5 CM Franchi, and next on my list were the Sierra 130gr GKHP bullets. I've used the 85gr GKHP's successfully in my .243 for deer, and these should be more of the same, just bigger and better. As I looked at my powder supply, I thought, "Why not IMR 4064? It should work well on these lighter bullets."

Using the Hornady seating depth tool, I found that max COL for this bullet in my rifle is at 2.680". I intend to start my load development at .020" off the lands, leaving me with a beginning COL of 2.660".

If you would be so kind, could you run the numbers for me, using the following parameters:
COL 2.660"
IMR 4064
Starline brass
24" barrel
WLR primers

As a secondary request, could you also run the same numbers with Sig Sauer and Hornady brass to see if it makes any meaningful difference in the projections?

Thanks in advance,
Brian

 

[TexasLife]

@DrMike I know this is an old thread, but I'm wondering if you would mind revisiting it? I've been working up some loads for my 6.5 CM Franchi, and next on my list were the Sierra 130gr GKHP bullets. I've used the 85gr GKHP's successfully in my .243 for deer, and these should be more of the same, just bigger and better. As I looked at my powder supply, I thought, "Why not IMR 4064? It should work well on these lighter bullets."

Using the Hornady seating depth tool, I found that max COL for this bullet in my rifle is at 2.680". I intend to start my load development at .020" off the lands, leaving me with a beginning COL of 2.660".

If you would be so kind, could you run the numbers for me, using the following parameters:
COL 2.660"
IMR 4064
Starline brass
24" barrel
WLR primers

As a secondary request, could you also run the same numbers with Sig Sauer and Hornady brass to see if it makes any meaningful difference in the projections?

Thanks in advance,
Brian

knowing what the h2o of the brass is would be more helpful. not necessarily when load developing though unless you have enough info for ql to do very close results.

 

[DrMike]

Cartridge          : 6.5 Creedmoor Hornady
Bullet             : .264, 130, Sierra TGK 4330
Useable Case Capaci: 43.745 grain H2O = 2.840 cm³
Cartridge O.A.L. L6: 2.660 inch = 67.56 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : IMR 4064

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    30.00   2322    1556   34232   7026     96.1    1.519
-18.0   81    30.75   2373    1625   36363   7201     96.9    1.483
-16.0   83    31.50   2424    1695   38617   7367     97.5    1.443
-14.0   85    32.25   2474    1767   40999   7525     98.1    1.403
-12.0   87    33.00   2524    1839   43517   7673     98.6    1.365
-10.0   89    33.75   2574    1912   46178   7811     99.1    1.328
-08.0   91    34.50   2623    1986   48993   7939     99.4    1.292
-06.0   93    35.25   2672    2061   51969   8056     99.7    1.258
-04.0   95    36.00   2720    2136   55118   8162     99.9    1.226  ! Near Maximum !
-02.0   96    36.75   2768    2212   58452   8256    100.0    1.194  ! Near Maximum !
+00.0   98    37.50   2816    2289   61982   8338    100.0    1.164  ! Near Maximum !
+02.0  100    38.25   2863    2366   65723   8414    100.0    1.135  !DANGEROUS LOAD-DO NOT USE!
+04.0  102    39.00   2909    2443   69689   8488    100.0    1.107  !DANGEROUS LOAD-DO NOT USE!
+06.0  104    39.75   2955    2521   73897   8559    100.0    1.079  !DANGEROUS LOAD-DO NOT USE!
+08.0  106    40.50   3001    2600   78367   8628    100.0    1.053  !DANGEROUS LOAD-DO NOT USE!
+10.0  108    41.25   3047    2680   83117   8695    100.0    1.028  !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     98    37.50   2900    2428   72178   8032    100.0    1.095  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     98    37.50   2689    2087   51843   8502     97.9    1.256

 

[bdbrown66]

Thank you. That falls exactly in line with the Sierra data, 37.6 max load. And if the predicted psi number is correct, that is just under the 62k pressure limit.

If I can get good accuracy up around that 2750-2800 fps range, that should work nicely.

 

[DrMike]

That should work for most game in the lower 48.