37xc Quickload help

[schmi015]

So I'm shooting a 37xc and running 125grains of H50BMG with a 390 A-tip, federal LRP and getting 2800fps out of my 28in barrel and 2834 out of my new 34in barrel. With 115grains of H1000 I hit 2950fps out of the 28in barrel but ran into pressure.

Can someone please run quickload and give me some numbers with the 390 a-tip running RE26, US869, N570 and 20n29? The 37XC has 139 gr of H2O capacity.

 

[schmi015]

@rustyinbend can you help me with this?

 

[Dogtown]

Unless there's been a newer update, I'm not seeing 37xc in QL.

 

[schmi015]

Well that's a bummer. I was hoping for anything that could help.

 

[Dogtown]

David Tubb is known for being generous about load data for his cartridge. Send him an email.

 

[John Glidewell]

https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.davidtubb.com/index.php%3Froute%3Daccount/download/free%26download_id%3D46&ved=2ahUKEwjli5SCt9yDAxU6I0QIHTGOB-kQFnoECBMQAQ&usg=AOvVaw0RigWIhh1LZHanf3kFnbKE

 

[Dogtown]

Same file, minus the HTML vomit

 

[schmi015]

Same file, minus the HTML vomit

Thanks, I have the write up. Just looking for some info with these other powders RE26, US869, N570 and 20n29.

 

[schmi015]

Ran some 37 xc loads today and here were the results

 

[Dogtown]

Pretty impressive with N570.

 

[Rocketmandb]

How do you like the N570? I just pre-ordered 750 of the new Bergers and I'm sure that all the H1000 I've got will be for naught as it's too fast for the bigger stuff. I've got 12lbs of N570, but have heard it's hard on barrels. H50BMG would be my next choice.

 

[schmi015]

How do you like the N570? I just pre-ordered 750 of the new Bergers and I'm sure that all the H1000 I've got will be for naught as it's too fast for the bigger stuff. I've got 12lbs of N570, but have heard it's hard on barrels. H50BMG would be my next choice.

So those were the first 10 rounds of N570 down that barrel. Total round count on that barrel is now 47. I have a great load of 125.5grains of h50bmg with a 390 a-tip that is single digit sd's with a spread of 14fps. That load works in two different barrels at 2824fps. I would love to use h1000 but in this barrel i hit sticky bolt lift at 114 grains(k&p 34in) and my other barrel 115(Bartlein 28in) . The bartlein is a faster barrel. I'm hesitant to continue with n570 due to that reputation it's gaining for barrel wear. What does 2950 (n570)get me that 2824(h5obmg) cant do?

 

[Rocketmandb]

What does 2950 (n570)get me that 2824(h5obmg) cant do?

For me, it's powder in hand vs spending on a couple of 8lb jugs.

 

[schmi015]

For me, it's powder in hand vs spending on a couple of 8lb jugs.

Right now i have an equal amount of h1000. n570, and h50bmg. But I'd really like more of re26 and re33.