300wsm?

I've made a couple hundred from 300 brass, total pain! I'm outside neck turning and annealing. Cant seem to get the neck tension right. I suspect that I have a ridge/donut inside. They shoot not bad (have had 3/4" fives at 300) but they just don't feel the same when seating and I don't have the consistency dialed yet.
 
cdn shooter said:
I've made a couple hundred from 300 brass, total pain! I'm outside neck turning and annealing. Cant seem to get the neck tension right. I suspect that I have a ridge/donut inside. They shoot not bad (have had 3/4" fives at 300) but they just don't feel the same when seating and I don't have the consistency dialed yet.
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You're not getting a donut if you're necking down to 7WSM from .300WSM and creating a false shoulder. Fire form, outside neck turn, anneal. Should give consistent results if your case capacities are consistent or at least sorted. My question is what are you using for sizing and seating dies?

I get better results from my formed .300WSM brass than my 7WSM WW brass, FWIW.
 
Jordan Smith said:
You're not getting a donut if you're necking down to 7WSM from .300WSM and creating a false shoulder. Fire form, outside neck turn, anneal. Should give consistent results if your case capacities are consistent or at least sorted. My question is what are you using for sizing and seating dies?

I get better results from my formed .300WSM brass than my 7WSM WW brass, FWIW.
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Sizing with a redding type S neck die.
 
Can anyone share a pet load for their .300WSM?? I've found some using RL17 and people love it, but RL17 is not findable right now. There's RL19 available - anyone have anything for that with 185 bergers???

Thx.

-J.
 
I use 61 grains of H4350 with 180s, and 63 grains of the same powder with 165 grain Ballistic tips and Accubonds. Both are a little less than the Hodgdons data, but the book velocity is there in either case. It's probably a fluke, but it's uncanny how well the two loads shoot together from zero to 500. Can't think of any advantage to that, but it doesn't stop me from wishing there was.
 
Finally got a load I like in my 300wsm for hunting.

175gr Barnes LRX
61 and 62.2gr H4350
Nosler cases.

Sub 0.5moa. Have not run the chrony on it yet. Both shot almost the same....going to have to shoot some 500m groups to see which wins.
 
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Tikka T3 300 WSM w/factory heavy barrel 1-11" braked, bolted in an XLR Element chassis, Bushnell 4.5-30 XRS on a MT 20 MOA rail. Using AlphaMag wsm MAGAZINES, LOADING 208 bthp AND amax TO 2.965. WLR primers, IMR 7828ssc 68.0 gr. 2840 fps excellent accuracy to 966m, as far as I've tried it. Averages under .75 moa at the 100 yd line (5-10 shot groups) with a few quite a bit smaller. (The ones I save and brag about!)

If I every shoot this barrel out, I'd consider 7mm or 6.5 wsm case but, frankly I'm quite pleased with this 300. I've just ordered a 223 T3 HB 1-8" to switch in and out of the same chassis.

Blake
 
Jordan Smith said:
A .300WSM will never equal a 7, given equal progression of bullets for both. The 7WSM should push the new 195 to 2850-2900fps with a 26" barrel and the right powder, and even the 230 Berger can't keep the .300WSM competitive with that...
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Car-full poo pooing wsm 30 cal yes the new 195 gr 7mm has a higher BC 754 and the 30 cal 230 at 717 BC 38 BC more not a really big difference at 1000 y

But these 30 cal 198gr will be better with 855 BC

Flat Line Projectile http://www.warner-tool.com/#!flat-line-projectiles/cw8c
 
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