Home Forums Hunting & Shooting Custom Rifles & Wildcats 358 wsm - what's the recipe

My 358 wsm is getting close to be being done, what is load for to start with for Barnes 200 tsx or 225 accubonds, someone must have one of these worked up. Brass question also, neck up 325 wsm brass?

I'd wonder if someone with QL couldn't input your H20 capacity into the program in order to give you some relevant starting points. I'd bet it isn't too far off from the Norma in overall case capacity.

I'd be happy to do a QL run for you if you can me some info

I don’t have charge weights handy, but CFE 223 was the powder to used based on QL, and it worked well on paper and game for 200-225 gr bullets. QL has data on it (case capacity) listed under 35 Sambar

Case capacity should be roughly 1/2 way between 35 Whelen & 358 Norma. I've found the same powders (RL15, H4895, etc., & especially PP2000MR) that work best in the Whelen also are optimal in the Norma with lighter bullets (200 & 225). Reality isn't always logical, but I'd try these first using warm to max Whelen loads & sneaking upward carefully in 1/2 gr increments until you find pressure or run out of case space. 1 or 2 shots per charge weight is sufficient when looking for pressure. A chronograph is a very helpful tool.

As msalm said above CFE223 may be the cat'sass, but the lot I have is real peaky & not as well behaved as the very similar PP2000MR.

Ideally if i had a recipe using H4895 or H414 it would be great, i have several pounds of them two on hand.

Rifle is a Dakota action, 1:12 barrel (From Ragged Hole assume by Wilson) at 23.5".

Find “Whelen’s Northwoods Trails” @ 35cal.com
There is probably useful information there for you.
Search here too…Reloader 17 is another good powder for it.

Lt Dan…….uh, I mean Capt John,
There are at least a half dozen Fire members that have built and worked with the 358 WSM extensively. They probably have yet to see your post inquiry. I’m sure you’ll hear from them eventually.

Have you got load data. in Australia it know as the 35 Sambar

Hey mate I run reloader 17 in mine with 200grain ttsx
Chronographed at 3180fps , rifle is a Kimber Montana with a Walter lothar chrome moly barrel , it’s a great cartridge goodluck with it

Just wondering, 'cause I don't have a 35 Sambar/358 WSM, why you guys don't run 250 grain projectiles for elk, moose, sambar? Is it recoil with the 250's or flatter trajectory with the 200's perhaps?

Me personally I’ve ran 250grain woodliegh round nose and shot 8 or so stags with them they did shake my leupold mounts to bits so I went to Warne mounts which are miles better , I settled on the barnes 200grain as the case just seems to be the most efficient with them there fast which is what barnes need and I think the .358 diameter makes a good hole even before it opens up so good blood trails , I’d use 250grain again if going for buff but a 200grain mono is plenty for sambar the way I hunt

Thanks 35Sambar.

The recipe is defined - so with no R17 to be had we settled on H4350, maybe according to others leaving some speed on the table but 67 grains of H4350 behind a Barnes 200 TTSX is spot on. A dot you get with shoot n see target will cover 3 bullet holes, case closed for me. I don't think game will know the difference, the gun is a Montana 1999 action 23.5" McGowan Barrel ported with a 1:12 twist, topped it with a 2-8 Vortex Razor, figured an early season pig might need to experience it one of these nights if it cools down just a bit.

wasnt someone building 358WSMs on Savage actions recently?

That should be pretty darned effective!

Cartridge : .35/300 WSM (.35 Sambar)
Bullet : .358, 200, Barnes 'TTSX' 30461
Useable Case Capaci: 70.471 grain H2O = 4.576 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 23.5 inch = 596.9 mm
Powder : Hodgdon H4350 *T

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.746% 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

-07.5 98 62.00 2470 2709 35501 6904 85.1 1.341
-06.7 98 62.50 2490 2754 36336 6979 85.6 1.329
-06.0 99 63.00 2511 2800 37191 7053 86.0 1.316
-05.2 100 63.50 2532 2847 38068 7127 86.5 1.300
-04.5 101 64.00 2553 2894 38966 7200 86.9 1.287
-03.7 101 64.50 2574 2942 39890 7272 87.4 1.273
-03.0 102 65.00 2595 2990 40831 7344 87.8 1.260
-02.2 103 65.50 2616 3039 41806 7415 88.2 1.246
-01.5 104 66.00 2637 3088 42801 7485 88.6 1.233
-00.7 105 66.50 2658 3137 43822 7555 89.1 1.220
+00.0 105 67.00 2679 3187 44871 7623 89.5 1.207
+00.7 106 67.50 2700 3238 45947 7691 89.9 1.194
+01.5 107 68.00 2721 3289 47054 7758 90.3 1.181
+02.2 108 68.50 2743 3341 48188 7824 90.7 1.169
+03.0 109 69.00 2764 3393 49355 7889 91.1 1.156
+03.7 109 69.50 2785 3445 50552 7953 91.4 1.144

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 67.00 2839 3579 53528 7951 95.8 1.118
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 67.00 2488 2749 37107 6996 80.4 1.319

Thanks for the printout, appreciate the effort nice to see. We probably could of gone hotter but as we moved up things got better and better and it was like I AM GOOD! It shoots better than i can hold it.

the reason I used the Montana it was short mag ready action, simply added barrel and the seller had a nice unfinished stock which in English walnut so it turned out pretty nice all the way around