I could use a little quick load help!

[taylorce1]

I'm playing with 85 grain Sierra HPBT Game Kings in my 6X47 Rem. There is no data for this bullet in my Sierra manual so I used 85 grain Speer data from Hogdon's web page. Tried BL-C(2) this weekend and it gave me stellar groups with the 55 grain Nosler BT (5 loads tried 3 sub 1"), and 60 grain Sierra HPBT (4 loads tried all sub .5"), but the 85 grain Gamekings wouldn't do under 1.5" with anything and all had primer cratering to some extent.

I'm looking for powders other than Hogdon's that will at least get me into the 2700 fps range with this bullet. Anything over 2700 fps makes it have the necessary ft-lbs to be legal for hunting in CO. I'm just looking for recommended powders and max charges as I can back it down from there.

My cases avg 30.2 grains H20, COAL is 2.40" and it has a 20" barrel 1:12 twist. I've been using CCI 400 primers as well.

 

[DrMike]

Here are some projections from QL to help get you going.

Cartridge : 6 x 47 (6-222RemMag)
Bullet : .243, 85, Sierra HPBT 1530
Useable Case Capaci: 29.739 grain H2O = 1.931 cm³
Cartridge O.A.L. L6: 2.485 inch = 63.12 mm
Barrel Length : 22.0 inch = 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 51397 psi, or 354 MPa

or a maximum loading ratio or filling of 110 %

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 !

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Vihtavuori N550 110.0 30.8 2.00 2878 93.7 51178 8852 1.058 ! Near Maximum !
Norma 203 old 105.3 29.2 1.89 2861 97.0 51398 8484 1.071 ! Near Maximum !
Accurate 2495 103.1 26.7 1.73 2857 100.0 51398 7941 1.097 ! Near Maximum !
Hodgdon H414 107.1 31.1 2.01 2855 89.8 51398 8713 1.054 ! Near Maximum !
Winchester 760 107.1 31.1 2.01 2855 89.8 51398 8713 1.054 ! Near Maximum !
Rottweil R903 107.7 29.2 1.89 2852 96.7 51398 8382 1.072 ! Near Maximum !
Lovex D073.6 99.8 28.2 1.83 2849 98.8 51398 8134 1.074 ! Near Maximum !
Accurate 2520 99.8 28.2 1.83 2849 98.8 51398 8134 1.074 ! Near Maximum !
Accurate 4064 110.0 28.2 1.83 2847 99.4 50465 8216 1.101 ! Near Maximum !
Somchem S355 106.9 28.7 1.86 2837 96.5 51398 8302 1.072 ! Near Maximum !
Hodgdon H380 103.7 29.0 1.88 2824 93.4 51398 8339 1.071 ! Near Maximum !
Lovex D073.5 92.9 27.3 1.77 2800 98.1 51398 7822 1.087 ! Near Maximum !
Accurate 2460 92.9 27.3 1.77 2800 98.1 51398 7822 1.087 ! Near Maximum !
Rottweil R901 97.5 25.4 1.65 2793 99.1 51398 7724 1.097 ! Near Maximum !
SNPE Vectan SP 7 97.6 28.7 1.86 2790 93.2 51398 8010 1.078 ! Near Maximum !
Lovex S065 109.8 29.5 1.91 2787 92.1 51398 8085 1.078 ! Near Maximum !
Norma URP 110.0 29.8 1.93 2780 92.1 46230 8483 1.103
Bofors RP19 ~approximation 110.0 29.8 1.93 2778 92.1 46185 8478 1.104
Norma 204 110.0 31.1 2.02 2765 85.5 49999 8186 1.072 ! Near Maximum !
Ramshot Hunter 110.0 31.1 2.02 2764 89.1 46556 8488 1.101
Rottweil R907 107.8 29.0 1.88 2761 89.1 51398 7929 1.079 ! Near Maximum !
IMR 4007 SSC 104.4 29.0 1.88 2759 89.1 51398 7921 1.079 ! Near Maximum !

 

[taylorce1]

Thank You Dr. Mike! I've got a few of those powders on the bench as well. None of these powders were listed on Hogdon's web site that I have H414, W760, and H380 for this cartridge. Plus I have N550 and Hunter, so I should be set to try some more loads.