Home Forums Reloading Big Game Rifles 300 WSM pet loads?

Winchester brass, Winchester primer, 150 ABs , 70 gr of Hunter , average 3300 fps out of a 26 in barrel. Tiny groups

You going to try H4350 next? I ran a ton of 165 Hornady BTSP's in mine:


None of them ever seemed to be too finicky with H4350. Too bad that RL16 didn't work out for you. I'm going to be trying that in my new to me 300RSAUM.. Hoping it does well. I know it likes Big game as of now..

BSA,

Honestly, I think I may move to 180’s and H4350, got quite bit of both. I was reading a couple of different sites last night people claimed their Tikka T3’s either loved 165 AB or hated them, I think mine hates them. It will shoot 165 gr Barnes TTSX’s decent.

Ok new load and it shoots great out of my rifle. I’m using 62.8 gr Hybrid 100V, 178 gr ELD-X, and LR magnum primers. Confirmed it again last weekend and .84” 5 shot group. I forgot my Magneetospeed speed again. But will get velocities next time out with it.

IMR 4350 with a 150 Accubond

RL 17 with 180 Ab or Bt , and 168 ttsx

I’m having to stay at the house all weekend to take care of the wife from her surgery last week. Getting bored, I was going through my notes and found I had gotten a 3/4” 4 shot group at 100 yards using 64.0 grains of 180 gr. Accubonds, H4350 and 250 CCI’s. I had forgotten all about this load as I thought I was almost out of the 180 gr. Accubonds when working up this load, but bought some more early last spring.

I ran 64-65gr of that powder with 180gr Nosler partitions. Very accurate load. Also use CCI250's in my 300WSM's. I never shoot mine. The only one I have now is a Tikka with a wood stock. Very nice rifle and pretty good shooter. Your 178 ELDX load sounds like a good one. I've been seeing 180gr SST's quite a bit and bought a few boxes of them, along with some 175gr Sierra SMK bullets. They were on sale, so I bought 2 boxes. The 180gr SST's were $31.99/box. Hard to beat that price. Wondering how the 180gr SST compares to the 178 ELDX though. I also have some of those...

165g Sierra GameKing HPBT
64.7g H4350
CCI 250

Hey Hudge, why not just use the 165 TTSX, if your rifle likes them. Finally got around to testing my 300 RSAUM with the 165 TTSX. It likes them. Shoots them around 1 moa or less:

That will flatten any elk I've seen. Just as well as any 180gr pill. Maybe even better than most 180gr C&C'S.

I'm really liking that little rifle. Great shooter and is lightweight. It's a clunky Ruger m77 mk2, but I like it. I may end up selling my 300WSM, as this Ruger does everything my WSM does. Strange that a Ruger shoots almost as good as a Tikka, but I'll take it..

BSA,

I’m always trying to improve on my loads. The 165 gr. TTSX was ok, but honestly rushed to get a load for moose season 2 seasons ago. I used StaBALL 6.5 with my 165 gr. TTSX load, but I think velocity is lower than should/could be.

Concerning SST’s, my other 300WSM, a Rem 700, loves 165 gr. SST’s and IMR 4320. My son’s co-worker seems to want the gun more than me, so when he returns from training in AZ, I’ll probably sell it to him.

I've had a couple 300WSM's that struggled to make 2,950fps with a 165gr pill, so I know what you are talking about. That was even with H4350. That StaBall 6.5 seems like great powder, but I have only played around with it recently in a 22-250 and one of my 6.5 Creedmoor's. I've never ran the SST, but just loaded up some 180's to try in one of my new 30-06 rifles. I can also understand about improving loads, but that shouldn't take long. One range trip generally, per powder type or bullet change. Also, one of the nice things about the 300WSM is they are generally quite accurate. I remember developing a load for one of my buddies. That rifle shot just about every charge into 1/2 moa. His rifle loves the 165 TSX. Then he says, "I should load some TTSX, they will probably shoot better".. I said, you can try them, but good luck getting a load that shoots better. I like and appreciate precision, but know when "enough is enough"..

My old 300 WSM was pretty good with H4831 and 200 PTs but for some reason I have had a lot of luck with 165 ABs and RL19.

The same load works well in my buddies 300 WSM EW.







19 and 180 ABs were real decent as well.



I have a buddy that uses a Tikka with H4350 and 180 TTSXs that is also another great shooting load.

Great info beretzs. As per usual.

One of my loads; Winchester brass, Federal 210M Mag primer, 70 gr of 4831SC and a 168 Berger. Going by memory but high 3200's low 3300's.

Many moons ago 2012 time frame I had a stainless tikka in a 300 wsm. When sportsmans was selling them for $600 bucks the tikkas were a “budget” rifle. Anyhow this load shot extremely well and the 180 load shot extremely well. Sold that tikka 9yrs ago to a buddy still has it.

W-W cases
68.0gr RL19
168gr barnes TTSX
FED 215
Base to ogive 2.850
AVG velocity 2,906 FPS

64.0gr h-4350, fed 215, 180gr nosler bt or accubond
COAL 2.900
2,891 f.p.s was the avg.

Out of my model 70
178gr eld-x
69.5gr H4831sc
Rem 9 1/2 M
2.903 oal
2905 fps

Slow barrels I guess?

We were shooting our 300 Wizzums at the same time frame, but I don't recall you ever talking about it.



One thing about it. It is a hell of an "inherently accurate" cartridge..

I could never get the speeds out of it like a lot people were getting. So who knows probably was a slow barrel.