Good Results With IMR4007ssc

[bullet]

I decided to work with IMR4007ssc in my 30-06 Marlin XL7 using my favorite bullet when hunting whitetail deer and hogs, the 165gr HPBT Sierra G/K

My load chain was:
165gr HPBT Sierra G/K
IMR4007ssc
Winchester Brass
Fed 210 Match primer
OAL 3.185"

Results:
Velocity - 2907fps average
Extreme spread - 13
Deviation - 5
Group size for three shots -

Target three shot group
[

Increased the charge by 3/10 of a grain and average was 2938fps five shot group.

Target five shot group with 3/10gr increase.

I liked how this turned out, will use IMR4007ssc with my 06 some more.

 

[DrMike]

Good post, Mike. I've found IMR 4007 SSC to be a beneficial powder, especially in standard cartridges. Fine shooting, and excellent photography, as usual.

 

[bullet]

This is the first time I have used it with the 30-06 and I am impressed.

 

[bullet]

I am going to back off this load some because when I look at data including Q/L this load might be at 54,000psi and could be lower due to the shallow lands and grooves of my Marlin, but over my desired 62,500psi. If anyone would run for me this bullet and powder in their Q/L program and keep my max at 62,500psi so I can double check this, I would appreciate it. Now my brass is not showing excess but that does not mean there is not excess.

 

[DrMike]

Cartridge          : .30-06 Spring.  (SAAMI)
Bullet             : .308, 165, Sierra HPBT 2140
Useable Case Capaci: 62.677 grain H2O = 4.070 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : IMR 4007 SSC

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   77    45.36   2251    1856   31565   8043     86.9    1.437
-18.0   79    46.49   2307    1949   33626   8306     88.2    1.400
-16.0   81    47.63   2362    2044   35817   8564     89.4    1.365
-14.0   83    48.76   2418    2142   38147   8816     90.5    1.327
-12.0   85    49.90   2474    2242   40626   9062     91.6    1.287
-10.0   87    51.03   2529    2344   43263   9301     92.6    1.249
-08.0   89    52.16   2585    2448   46071   9531     93.6    1.212
-06.0   91    53.30   2641    2555   49061   9752     94.5    1.177
-04.0   93    54.43   2697    2664   52248   9964     95.4    1.143  ! Near Maximum !
-02.0   95    55.57   2752    2776   55646  10165     96.1    1.110  ! Near Maximum !
+00.0   97    56.70   2808    2889   59274  10354     96.8    1.078  ! Near Maximum !
+02.0   99    57.83   2864    3005   63150  10532     97.5    1.047  !DANGEROUS LOAD-DO NOT USE!
+04.0  101    58.97   2919    3123   67296  10696     98.1    1.018  !DANGEROUS LOAD-DO NOT USE!
+06.0  103    60.10   2975    3243   71734  10847     98.6    0.989  !DANGEROUS LOAD-DO NOT USE!
+08.0  104    61.24   3030    3364   76493  10983     99.0    0.962  !DANGEROUS LOAD-DO NOT USE!
+10.0  106    62.37   3086    3488   81601  11103     99.3    0.935  !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     97    56.70   2936    3159   69526  10337     99.7    1.003  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     97    56.70   2642    2557   49257   9940     90.5    1.175

 

[FOTIS]

Very nice Mike.

Barrel makers love you!

 

[bullet]

Very nice Mike.

Barrel makers love you!

They do don't they FOTIS :mrgreen:

 

[bullet]

Very nice Mike.

Barrel makers love you!

They do don't they FOTIS :mrgreen: My load was below max, it was 56.0 grs and Hogdon's max load is 55.9

 

[bullet]

Thanks Dr Mike

 

[hubcap]

Great post bullet. I had no idea 4007 was a good powder for 06. Thanks a bunch. While back I was eye balling three 1lb. jugs right there in front of me at gun store. I hesitated about a minute too long and another fellow walked right to me and grabbed all three containers. I asked him what he was going to load with the powder. He said the 30;06. Dang it.

 

[mbmm]

I use it in my 220 swift. I think it's dandy.

 

[DrMike]

I rescued a load for a 375 Ruger with 270 grain TSX on one occasion when I used this powder--one-half MOA. I quit with that.

 

[SJB358]

Nice!

Looks like it could be good in the Whelen and I have heard it can work very well in the 325WSM as well.

Great shooting, looks like a really good load. I can't imagine deer liking them..