Loading for the 6mm Remington

[Larry in SD]

A really good friend of mine has a Remington Model 660 6mm Remington. I just mounted up a new Scope for him and cleaned the rifle. He was having accuracy issues and I think I found the problem, a loose scope mount.

At any rate he wants me to load him up some ammo for it. He has brought me 70gr. Nosler Ballisitic Tips and H-4350 Powder. In the Nosler Reloading Data on line I do not see H-4350 listed. However in the Hodgdon Reloading Data on line with a 70gr. Sierra HPBT it shows H-4350 with a starting load of 46.0grs. and a maximum load of 50.8grs. (showing compressed).

Does anyone have a pet load for the 6mm Remington using H-4350 Powder with 70gr. Nosler Ballistic Tips?

Thanks

Larry

 

[DrMike]

Neat rifle, Larry. Your friend has a true classic. I have no "pet loads," but QL does provide this projection with the 70 g BT and H4350.

Cartridge          : 6 mm Rem.  (SAAMI)
Bullet             : .243, 70, Nosler BalTip 39532
Useable Case Capaci: 50.892 grain H2O = 3.304 cm³
Cartridge O.A.L. L6: 2.825 inch = 71.76 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Hodgdon H4350

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   86    39.44   2739    1166   32331  10352     81.6    1.162
-18.0   88    40.43   2810    1227   34580  10734     83.2    1.133
-16.0   90    41.41   2881    1291   36987  11111     84.7    1.104
-14.0   92    42.40   2954    1356   39566  11481     86.2    1.067
-12.0   95    43.38   3026    1423   42329  11844     87.6    1.034
-10.0   97    44.37   3099    1493   45291  12198     89.0    1.001
-08.0   99    45.36   3172    1564   48467  12541     90.3    0.970
-06.0  101    46.34   3246    1638   51847  12872     91.5    0.940
-04.0  103    47.33   3320    1713   55456  13189     92.7    0.911  ! Near Maximum !
-02.0  105    48.31   3394    1790   59329  13491     93.8    0.883  ! Near Maximum !
+00.0  107    49.30   3468    1870   63489  13776     94.8    0.856  ! Near Maximum !
+02.0  110    50.29   3543    1951   67960  14042     95.7    0.830  !DANGEROUS LOAD-DO NOT USE!
+04.0  112    51.27   3618    2034   72772  14289     96.6    0.805  !DANGEROUS LOAD-DO NOT USE!
+06.0  114    52.26   3692    2119   77958  14514     97.3    0.780  !DANGEROUS LOAD-DO NOT USE!
+08.0  116    53.24   3767    2206   83555  14716     98.0    0.757  !DANGEROUS LOAD-DO NOT USE!
+10.0  118    54.23   3842    2295   89605  14894     98.6    0.734  !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    107    49.30   3649    2070   75005  14016     99.0    0.794  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:

 

[Larry in SD]

Thanks for the info DrMike. Yes it is a neat Rifle. I mounted up a Swarvoski V6 3x18x50mm Riflescope on it for my buddy.

Larry

 

[DrMike]

Great choice in scopes, as well. I have several of the Z6 scopes, and they are top gear.