.300 WSM WOW!

[Gb300wm]

Yep JBT. I’ve never encountered a problem with my 10 tw in a 300 winnie and a 30” Brux. I was running the 230 otm’s at 2765 fps.

 

[dragman]

I can say I have seen it first hand. I have also had great success with them as well.

 

[mattdienes]

What’s all this ranting about a 300wsm? Are they a good round?

 

[dragman]

What’s all this ranting about a 300wsm? Are they a good round?

The one I bought from you is one of only 2 guns I wish I didn't sale!

 

[Steve Blair]

I’ve shot lots of 230 Hybrid OTM’s from a 10” twist .300 Win Mag out to 1,760 yards with good results. 10” twist stabilizes the Hybrid OTM’s just fine in my experience.

230 Hybrid OTM's are shorter than 230 Hybrid Match, easier to stabilize. That said, I've shot a lot of 230 Hybrid Match through 10" Brux and Krieger barrels to 1000 yards at ~2865 fps. I did later switch to 9.75" and would have no problem using a 9" twist.
They are great bullets but the shooter must really be on top of the torque.

 

[ben_g]

Hi Steve.

My main interest in the 230’s is because I can actually buy some here in Australia.

215’s are sold out, probably because the FTR guys snap them up.
I do not yet know the exact FB spec on my new barrel, but I believe it’s throated to suit the 215’s and the 210 JLK’s
Do the 230’s require a significant increase in FB over the above bullets?

Will I achieve 2800fps with the 230’s in your opinion? Remember I only have a 30” barrel and will use AR2209 (H4350)

I may have to fall back on the Hornady 208ELD, I have read the 225Hornady has a very long bearing length and would require a long FB that won’t suit the other projectile options.

I will just have to buy some 230’s and test them I guess

Dragman, which ELD’s are you using? 225 or 208??

 

[Steve Blair]

I used a 34" barrel and H4831 SC. I think AR2209 is a bit fast for 230s. My loads were 66-67 grains, lot dependent, and not a hot load. Brass life was ~10 firings with Norma Brass. My freebore is .280", as shown in the attached reamer print.
The downside is the attention and control required when shooting. Good luck.

 

[ben_g]

I used a 34" barrel and H4831 SC. I think AR2209 is a bit fast for 230s. My loads were 66-67 grains, lot dependent, and not a hot load. Brass life was ~10 firings with Norma Brass. My freebore is .280", as shown in the attached reamer print.
The downside is the attention and control required when shooting. Good luck.

Thanks Steve.
I can easily obtain AR2213SC so I might get some to trial with the 230’s

There is something to be said for lighter recoil in certain situations. But I have Dasher, 284 and 7mm SAUM barrels to choose from as well.
Really wanting the 300 for 1000-1200yard F-open events held here in Australia. But if I can hang on to it I might give it a run in our normal F-open events for 800/900 and 1000yards if conditions are dirty. I’ve read it is very easy to tune and groups very well with the 210 to 215 weight pills.

Did you find it finicky or easy to tune with the 230’a??

 

[Raythemanroe]

What is old is new again.


Ray

 

[Steve Blair]

They were very easy to tune with a broad, ~.8 grain window. My 5-shot, 100 yard load development groups were around .1-.15".

 

[ben_g]

I am playing with a new WSM (I have had many many of them)
I have used Berger 190's, 200 hybrids, 210's, 215's, and 230's all in berger
I have used JLK 210's and Sierra 210's
I have also used Amax 208 and the new ELDM 208's
And a few others that didn't do anything for me right away. Now I have tried all these not in the same guns so it's not a factual comparison of any kind just general experiences that I have had.
-Best 100 yard groups ever I got with the 208 Amax
-Best 1000 yard setup I ever had was the 200 grain hybrids (set the record at Ridgway with them)
-Best over 1000 yard groups was the 230's
-The best over all consistent from 100 yards - 1 mile was the 208 Amax (I believe some of that was that they liked to be pushed a little faster than the bergers)

And with that being said I am playing with the ELDM at the moment I have 1500 of them with my new WSM and I am going to do my preliminary testing @ 100 yards tomorrow.

Would really appreciate your results with the Hornady 208’s

These are easily available here

 

[dragman]

Would really appreciate your results with the Hornady 208’s

These are easily available here

What brass are you using? Also powder?
I have used: norma, nosler, bertrum, and Winchester. The brass and chambering really seems to make a difference. I have a 341 neck .200 freebore I used to use. Now I'm running .338 neck and .238 freebore

 

[ben_g]

I am planning to use AR2209 in Norma brass with the 210gr JLK’s

I also have easy access to AR2213SC

I am chasing the FB spec for the chamber. All I know is it is chambered to suit 210JLK’s

 

[dragman]

Not familiar with that powder. My Hornadys have always shot well just touching not jammed hard. With Norma and 210's I actually got better accuracy with RL 17 than H4350. Also the two primers I got best most consistent results with were cci 250's and S&B lrm

 

[ben_g]

Not familiar with that powder. My Hornadys have always shot well just touching not jammed hard. With Norma and 210's I actually got better accuracy with RL 17 than H4350. Also the two primers I got best most consistent results with were cci 250's and S&B lrm

Sorry I’m in Australia.
AR2209 is H4350, it’s made just down the road from me.

2213SC is H4831SC that’s just the ADI names.

 

[dragman]

Never used SC.
If I remember my best 210 vld loads with h4350 was 63.1 grains jammed about 5-8 thousands that gun was with Norma brass and cci250's

 

[100FUEGOS]

And instead of a 300WSM, why not configure a 7SWM, better ballistics, same capacity?

 

[dkhunt14]

And instead of a 300WSM, why not configure a 7SWM, better ballistics, same capacity?

The 7 WSM is too overbore. It showed up for 1000 yard BR. Many tried and it just wouldn't shoot small enough to win. Barrel life was poor with the rate of fire. The 7 SAUM has done a little better in BR. Matt

 

[ben_g]

And instead of a 300WSM, why not configure a 7SWM, better ballistics, same capacity?

Problem with a 7WSM is just when you get it tuned (and from what I have read it can be difficult to tune) your already looking for your next barrel. F class string firing will toast the barrel in short order.

I have a straight 284 and also a 7mm SAUM in the 7mm stable.

The 300WSM offers similar wind drift to the SAUM but is apparently very easy to tune, has better barrel life and some people who shoot them argue they seem to suffer less vertical dispertion in rough/dirty conditions at the long ranges.

I guess I will see, the SAUM also has a reputation of being easy to tune, it’s just a little harder on barrels.

 

[Laurie]

The 7 WSM is too overbore. It showed up for 1000 yard BR. Many tried and it just wouldn't shoot small enough to win. Barrel life was poor with the rate of fire. The 7 SAUM has done a little better in BR. Matt

Problem with a 7WSM is just when you get it tuned (and from what I have read it can be difficult to tune) your already looking for your next barrel. F class string firing will toast the barrel in short order.

The 7WSM is very widely used in high-level UK F-Class, where (so far anyway) the SAUM is a minority taste. BUT ..... we shoot in generally much cooler conditions, and crucially we pairs-shoot so the rate of fire is very much slower than in US F. Throw in many users throttling it back a little below its maximum performance and we get 900-1,100 rounds from a barrel which although not great is acceptable.

Several of our top shooters have tried the 300WSM and the 7 SAUM, but so far the 7 WSM has held its place. It's a straight issue of the shooting environment - ours obviously just gives the 7 WSM an advantage, yours tips it the other way to less overbore designs.