458 Lott

[Greg Nolan]

Has anyone worked up loads for a 350 gr. TSX in 458 Lott? I have a Ruger #1 and see that 350 X bullets go over 2700 FPS and I would like to build an all around rifle with some clout for elk, bear and pigs. Here's where a 350gr AccuBond would be ideal if they only made them.
Thanks
Good Hunting
Elkhunt :grin:

 

[bullet]

I have only worked up a 350gr TSX in a 416Wby. Would be interesting to see what response you get and what are the loads you receive from those who have.

 

[FOTIS]

This is where I will start with mine

Cartridge : .458 Lott
Bullet : .458, 350, Barnes 'TSX'
Cartridge O.A.L. L6: 3.600 inch or 91.44 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : Winchester 748

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 78 72.00 2187 3716 30249 5615 91.2 1.454
-18.0 80 73.80 2238 3893 32149 5781 92.3 1.416
-16.0 82 75.60 2290 4076 34177 5942 93.4 1.379
-14.0 84 77.40 2342 4262 36345 6096 94.3 1.343
-12.0 86 79.20 2394 4453 38662 6243 95.2 1.308
-10.0 88 81.00 2445 4648 41143 6382 96.0 1.274
-08.0 90 82.80 2497 4846 43799 6513 96.8 1.240
-06.0 92 84.60 2549 5049 46646 6636 97.5 1.207
-04.0 94 86.40 2600 5256 49702 6749 98.1 1.175
-02.0 96 88.20 2652 5466 52983 6852 98.6 1.144
+00.0 98 90.00 2703 5679 56515 6944 99.0 1.113 ! Near Maximum !
+02.0 100 91.80 2754 5896 60314 7026 99.4 1.083 ! Near Maximum !
+04.0 102 93.60 2805 6116 64414 7096 99.7 1.053 !DANGEROUS LOAD-DO NOT USE!
+06.0 104 95.40 2856 6339 68840 7154 99.9 1.025 !DANGEROUS LOAD-DO NOT USE!
+08.0 106 97.20 2906 6565 73632 7199 100.0 0.997 !DANGEROUS LOAD-DO NOT USE!
+10.0 108 99.00 2957 6794 78824 7232 100.0 0.971 !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 90.00 2818 6171 68225 6669 100.0 1.037 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 98 90.00 2542 5021 46173 6855 93.8 1.208

 

[JD338]

+1 one for a 350 gr AB. An E-Tip would be one awesome bullet in the Lott!

JD338

 

[Thebear_78]

I have been shooting a lot of speer 350gr bullets out of my Lott. I have been using H322 and Ramshot and getting 2760fps with my accuracy load. I had a couple where I reached 2850 but accuracy wasn't as good. I can't wait to try out some of the 350gr TSX bullets too, haven't found any yet. Honestly though there isn't much that could stand in front of that 350gr speer and shake it off.

If nosler only made a 400gr Partition, that would be perfect.

 

[Greg Nolan]

Thanks for all the feedback. The Barnes TSXs look to have a good profile and probably B/C. I can't find what it is yet. I used the Speer hot-cores in my 416 and they shot real well and like Thebear_78 said "There isn't much that could stand in front of that". My start load is 82grs. of IMR 4198. The barnes book says to trim back the case to use the second cannalure of the TSX if needed for an OAL of 3.6 in. but I don't need to in the #1 so I'm 3.64 in. CCI250 primes. I'll find out how she does when it stops raining. Oh yeah I put a Limbsaver recoil pad on the rifle. I have a 2.5-10x42 Monarch on it's way. Like Wayne van Zwoll wrote" This could of passed for artillery in bygone times". Pop Thanks for the info I'll post results and hopefully pictures if I can.
Good Hunting
Elkhunt :grin:

 

[FOTIS]

Anytime Greg.

 

[Greg Nolan]

I couldn't get to the range but I went to the National Forest and shot for velocity. With the Ruger #1 Tropical with 24" barrel using 350 Barnes TSX and 82 grs. of IMR 4198 with a CCI 250 primers and an overall length or 3.64 with new Hornady brass I got a real consistant 2771 to 2772 fps. I didn't have a set up for accuracy because my scope isn't in yet but the recoil part of the equasion worked as expected. I shot into a 20' diameter 8 month old seasoned oak section and got 16 inches of penetration and split the oak enough that I could recover the bullet. 325 grs. and 3 petals were still attached. That is one tough bullet!! I think a guy could just about line three elk abreast and take them all with one shot.
Good Hunting
Elkhunt :grin:

 

[FOTIS]

Awesome man. Thanx. How did the primers look? I ask because.......


Cartridge : .458 Lott
Bullet : .458, 350, Barnes 'X' S 45805
Cartridge O.A.L. L6: 3.640 inch or 92.46 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : IMR 4198
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 84 65.60 2408 4508 48168 5145 100.0 1.188
-18.0 86 67.24 2451 4669 50826 5223 100.0 1.164
-16.0 88 68.88 2493 4831 53614 5300 100.0 1.141 ! Near Maximum !
-14.0 91 70.52 2535 4993 56537 5376 100.0 1.118 ! Near Maximum !
-12.0 93 72.16 2576 5157 59603 5450 100.0 1.096 ! Near Maximum !
-10.0 95 73.80 2617 5321 62834 5524 100.0 1.075 !DANGEROUS LOAD-DO NOT USE!
-08.0 97 75.44 2657 5487 66250 5595 100.0 1.055 !DANGEROUS LOAD-DO NOT USE!
-06.0 99 77.08 2697 5654 69863 5665 100.0 1.035 !DANGEROUS LOAD-DO NOT USE!
-04.0 101 78.72 2737 5822 73686 5733 100.0 1.015 !DANGEROUS LOAD-DO NOT USE!
-02.0 103 80.36 2776 5991 77731 5800 100.0 0.996 !DANGEROUS LOAD-DO NOT USE!
+00.0 105 82.00 2816 6162 82014 5865 100.0 0.977 !DANGEROUS LOAD-DO NOT USE!
+02.0 107 83.64 2855 6334 86551 5928 100.0 0.959 !DANGEROUS LOAD-DO NOT USE!
+04.0 110 85.28 2894 6507 91362 5990 100.0 0.942 !DANGEROUS LOAD-DO NOT USE!
+06.0 112 86.92 2932 6683 96467 6049 100.0 0.925 !DANGEROUS LOAD-DO NOT USE!
+08.0 114 88.56 2971 6860 101888 6107 100.0 0.906 !DANGEROUS LOAD-DO NOT USE!
+10.0 116 90.20 3009 7038 107650 6162 100.0 0.887 !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 105 82.00 2860 6356 93277 5715 100.0 0.944 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 82.00 2750 5876 70513 6087 100.0 1.031 !DANGEROUS LOAD-DO NOT USE!


Cartridge : .458 Lott
Bullet : .458, 350, Barnes 'X' S 45805
Cartridge O.A.L. L6: 3.640 inch or 92.46 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : H4198
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 80 65.60 2348 4286 46039 5298 99.0 1.221
-18.0 82 67.24 2395 4457 48577 5396 99.3 1.194
-16.0 84 68.88 2440 4628 51258 5488 99.6 1.169
-14.0 87 70.52 2486 4802 54091 5573 99.8 1.144 ! Near Maximum !
-12.0 89 72.16 2530 4976 57085 5651 99.9 1.120 ! Near Maximum !
-10.0 91 73.80 2575 5152 60249 5721 100.0 1.097 ! Near Maximum !
-08.0 93 75.44 2619 5329 63596 5785 100.0 1.075 !DANGEROUS LOAD-DO NOT USE!
-06.0 95 77.08 2662 5507 67137 5846 100.0 1.053 !DANGEROUS LOAD-DO NOT USE!
-04.0 97 78.72 2705 5686 70886 5906 100.0 1.032 !DANGEROUS LOAD-DO NOT USE!
-02.0 99 80.36 2747 5866 74856 5964 100.0 1.011 !DANGEROUS LOAD-DO NOT USE!
+00.0 101 82.00 2789 6047 79065 6020 100.0 0.998 !DANGEROUS LOAD-DO NOT USE!

+02.0 103 83.64 2831 6229 83531 6075 100.0 0.976 !DANGEROUS LOAD-DO NOT USE!
+04.0 105 85.28 2872 6412 88272 6129 100.0 0.956 !DANGEROUS LOAD-DO NOT USE!
+06.0 107 86.92 2913 6597 93311 6180 100.0 0.935 !DANGEROUS LOAD-DO NOT USE!
+08.0 109 88.56 2954 6783 98673 6229 100.0 0.916 !DANGEROUS LOAD-DO NOT USE!
+10.0 111 90.20 2995 6971 104384 6277 100.0 0.896 !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 82.00 2846 6296 89447 5820 100.0 0.954 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 101 82.00 2701 5670 68682 6284 99.6 1.051 !DANGEROUS LOAD-DO NOT USE!

 

[Greg Nolan]

Pop
That's an awsome ballistics program.
I used a load for H4198 out of the Barnes manual #3 for XFB. I thought IMR and Hodgden were pretty close and the lower working pressure of the TSX would make up for any slight difference. I did have one primer fall out so I was going to change the load but I didn't realize it was that far into the danger zone. The velocity seemed in line though. Hmmmm. Do you have a load worked up for the 350 gr. TSX ? Does anybody ?
Good hunting
Elkhunt :grin:

 

[FOTIS]

Yup it is an eye-opener.

I will advise when I shoot mine. 748 is where it is at.

 

[Greg Nolan]

Thanks Pop!!
Good Hunting
Elkhunt :grin:

 

[Thebear_78]

H322 and ramshot tac are also really good powders.