Home Forums Reloading Big Game Rifles H4350 & 165Grn TTSX .300 Win MAg

I'd give it a shot as well. Another good old powder for the 300 Win.

Cartridge : .300 Win. Mag.(SAAMI)
Bullet : .308, 165, Barnes 'TTSX'BT 30368
Useable Case Capaci: 79.680 grain H2O = 5.174 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : IMR 4831

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.704% 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

-07.0 94 66.00 2893 3066 48976 10828 99.7 1.260
-06.3 95 66.50 2913 3109 50076 10879 99.8 1.247
-05.6 95 67.00 2933 3152 51200 10928 99.8 1.234
-04.9 96 67.50 2953 3196 52349 10974 99.9 1.222
-04.2 97 68.00 2973 3239 53522 11018 99.9 1.209
-03.5 97 68.50 2993 3283 54721 11060 100.0 1.197 ! Near Maximum !
-02.8 98 69.00 3013 3326 55946 11098 100.0 1.185 ! Near Maximum !
-02.1 99 69.50 3033 3370 57198 11135 100.0 1.173 ! Near Maximum !
-01.4 100 70.00 3053 3414 58478 11170 100.0 1.161 ! Near Maximum !
-00.7 100 70.50 3072 3458 59785 11204 100.0 1.149 ! Near Maximum !
+00.0 101 71.00 3092 3502 61122 11239 100.0 1.138 ! Near Maximum !
+00.7 102 71.50 3111 3547 62488 11272 100.0 1.127 ! Near Maximum !
+01.4 102 72.00 3131 3591 63885 11306 100.0 1.115 !DANGEROUS LOAD-DO NOT USE!
+02.1 103 72.50 3150 3636 65313 11339 100.0 1.104 !DANGEROUS LOAD-DO NOT USE!
+02.8 104 73.00 3169 3680 66772 11371 100.0 1.093 !DANGEROUS LOAD-DO NOT USE!
+03.5 104 73.50 3189 3725 68265 11404 100.0 1.083 !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 101 71.00 3200 3752 72754 10831 100.0 1.057 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 101 71.00 2928 3141 49588 11501 98.1 1.247

beretzs,

I took your advice and loaded up some IMR4831. Barnes has 74.7grns as max so I loaded five rounds at 72grns, 72.5grns, 73grns & 73.5grns. The 73.5 looks promising. I am seating 30 off the lands.

Thanks again for your help.

Boy there ain’t much left to do there. Very nice.

I think you found what you were looking for, lol.

I've been loading Barnes since about 1992, starting with the X, XLC, TSX and now the TTSX, in calibers from 22 Hornet on up to 300 Weatherby.

What I have noticed is, my best accuracy with the TSX and TTSX, comes in at the upper end of the powder charges, regardless of the cartridge, and, the TSX/TTSX are not as sensitive to seating depth for best accuracy. I start with the Barnes COL, and have not had to change from that to get great accuracy, though I did play with COL for a friends custom Hart in 300Win.

Thank you and once again thanks for your input and information.

Have a great Thanksgiving.

Clifford

I am pretty happy with the results. I have also found that my best results have been with the heavier powder charges. Gonna take my chrono out tomorrow and check the 165 loads so I can dial in my BT. Once that is done I should have my one gun/load solution for anything I will ever want to hunt.

Have a great Thanksgiving.

Clifford

Great advice there Scotty. Looks like the OPs rifle is doing damn good. Can't ask for much better than that. Surprised he had IMR4831 on hand though. The other day I was going to mess around with my 300wm and the powder I suggested, but saw how much I paid for the damn bullets and thought twice about it:


My 300 RSAUM loves that bullet.

I am very happy with the results. Looks like I might be able to put the 300WM stuff aside on the bench and start working on my 25-06 which is what I purchased the IMR4831 for originally. I feel your pain on the price for the Barnes Bullets. I found two boxes of the 165TTSX at BPS on Sunday and bought both of them. Unfortunately no IMR4831 on the shelf and none at Midway or Midsouth. When it is available again I think I am going to go ahead and get 8lbs instead of buying one pound at a time.

Everyone have a Great Thanksgiving!

Clifford



Great advice there Scotty. Looks like the OPs rifle is doing damn good. Can't ask for much better than that. Surprised he had IMR4831 on hand though. The other day I was going to mess around with my 300wm and the powder I suggested, but saw how much I paid for the damn bullets and thought twice about it:


My 300 RSAUM loves that bullet.[/quote]

[/quote]

Good luck on finding that IMR4831 Clifford. I use a powder that is almost identical to it (AA3100). I'm sure beretzs has burned up a bunch of that stuff too, as it works very well in the 300wm and 338wm. Your idea to move on to the 25-06 is a good one. That IMR4831 should work damn well for that cartridge. I've used AA3100 in my 25-06 with good success. Actually having fun loading up ammo with discontinued powder and discontinued bullets:


Then using AA3100 with some 100gr ballistic tips:


Got lucky with this Ruger #1, as it shoots pretty consistently. Not expecting benchrest rifle accuracy, but happy when they all fall within 1 moa with the old girl. Good luck with your 25-06 loading, and hopefully you will be able to get your hands on some IMR4831 powder. I think the last time I used it was in the early 2000's with some 190gr BTSP interlocks in my 30-06 rifles. After that, I moved on to H4831 because it was more temp stable and easier to find.