7-300 Norma Mag Improved

[Huntnful]

Did some more N570 testing this morning.

91gr.

Shot it at 600 yards. I haven't zeroed with this combo or anything, and didn't hold for wind. Just wanting to see how it shoots.

But now here's the caveat.

This is the throat area after 101 rounds of H1000

And this is the throat now, after just 22 rounds of N570

So N570 is pretty brutal.

May still load of 50 of them with N570 for
Hunting season since I have a new barrel
for next year already. Or just stick to H1000

 

[Phil Rizzo]

Have you tried 568?
Seems like it might be a compromise of the 2, and you definitely have the capacity.

 

[nwmnbowhunter]

How many shot strings of n570?

 

[Huntnful]

How many shot strings of n570?

That was 2 foulers. And four 5 shot strings,
the 5 shots were each shot over the course of 8 minutes, not back to back to back. With full cooling in between.

Have you tried 568?
Seems like it might be a compromise of the 2, and you definitely have the capacity.

I haven't tried 568, just simply because H1000 shoots so good. So I'm going to give up speed, might as well just stick with H1000. I'm sure 568 would be a great option in this cartridge though! But I'm not sure how easy it is on the throats compared to 570.

I know 560 burns hotter than the sun and is super hard on throats also.