300 wm rifle twist

[patrick021]

i have a300 wm shooting a berger 215 with a1/10 twist .should i get a 1/8 ?

 

[VargmatII]

It will do just fine as it is!

 

[Rob01]

i have a300 wm shooting a berger 215 with a1/10 twist .should i get a 1/8 ?

Why change if it's shooting fine?

 

[patrick021]

i have a300 wm shooting a berger 215 with a1/10 twist .should i get a 1/8 ?

 

[patrick021]

it’s not shooting like i want .the 215 calls for 1/9 and i was wondering what your opinion was

 

[babyguppy]

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bergerbullets.com

edit - If I had a choice of 1/8 for my 300wm or stay with 1/10; I'd get 1/8.
more options. If 215 is as heavy as you are going to go, i'd go with 1/9.
ps edit - my sako trg RIFLE - 300 win mag shoots 1x10 twist, 215 bergers out of a 27" barrel around 2900 fps. It groups less than .5" at 300 yards with the load. I'd still prefer a 1:9 based on Berger's stability chart.

 

[Rob01]

it’s not shooting like i want .the 215 calls for 1/9 and i was wondering what your opinion was

What rifle and what loads have you tried?

 

[patrick021]

berger 190 shoots great .25 “

 

[Rob01]

I meant load data with the 215s. I have shot up to 240s in a 10 twist 300WM so wondering if it’s your load data that may not be letting the 215s work for you.

 

[patrick021]

nosler brass 75 grains h-1000 215 berger cci 250 primer i don’t remember how far of the lands i’m not looking at my book i think 10 thousandth

 

[winxp_man]

My custom 300WM is a 1-10. 210 VLD shoot .25-.5 moa all day. I also do the 220SMK's and they shoot in the .25-.5 moa.

 

[perttime]

nosler brass 75 grains h-1000 215 berger cci 250 primer i don’t remember how far of the lands i’m not looking at my book i think 10 thousandth

I think you might have room to try slightly different powder charges. https://www.hodgdonreloading.com/reloading-data-center?rdc=true&type=54
... or different powders?

 

[smoooth1]

Try 77.0 grains H1000, maybe 78.0, depending on your case capacity.

 

[babyguppy]

might want to step up to some better brass. If you're going to chase the rainbow, you might want to invest in some more consistent brass like Lapua.
edit - like rob01 said, what other loads have you tried with your H100? I believe there's a whole reloading section on 300 win mag, with combinations.

 

[Rob01]

nosler brass 75 grains h-1000 215 berger cci 250 primer i don’t remember how far of the lands i’m not looking at my book i think 10 thousandth

What loads, with this combination of components, have you tried to settle on that one? Those components are fine but if you haven't found the right load with them may mean you haven't tried the right combo yet.

 

[patrick021]

i’ll do some more checking on what my loads are

 

[babyguppy]

Do you have a chrono to check to see how consistent your shots (FPS) are? just wondering.

 

[patrick021]

Getting a different one

 

[patrick021]

i went to shoot today i don’t know the fps but i used nosler brass 215 berger h-1000 /75.5 grs cci primer i set it at 4 different settings off the lands but .090 works the best
.25 to .50 at 100 yds