300 Norma Magnum Improved reamer and die release

[Schw15]

That's a pretty awesome load right there! How much do you really gain by pushing it past that node into a faster one besides more barrel wear, more powder, and issues if the temps get hot... I'd call it a day and go shoot!

I agree the 81.5 going to be the one I run most likely. Going to test at distance next

 

[KH_Outdoors]

Does anyone have a micron 300 norma improved 35 die? Bullet central is out of stock

Those Bullet Central dies are back in stock if you still need one.

 

[Schw15]

Those Bullet Central dies are back in stock if you still need one.

I grabbed one from someone off of here thanks though I appreciate it

 

[KH_Outdoors]

I grabbed one from someone off of here thanks though I appreciate it

No problem! I was waiting for one to come back in stock too

 

[Schw15]

No problem! I was waiting for one to come back in stock too

They are super nice and size more than any other die I've seen.

 

[KH_Outdoors]

They are super nice and size more than any other die I've seen.

That's the hope!

 

[Schw15]

That's the hope!

Mine sized the .200 line to .583
fired .585

 

[Raven81]

Very similar to my reamer design. Great minds think alike! the biggest difference is the freebore on mine is .286 and seats the 245 Bergers OAL at 3.77

Sir, is your reamer available to order?

 

[Mad Minion]

Sir, is your reamer available to order?

I can share the reamer print with you and you can get one made, but the biggest problem you may run into is dies. You will need to have one custom made

 

[Raven81]

I can share the reamer print with you and you can get one made, but the biggest problem you may run into is dies. You will need to have one custom made

Thanks! I think we're just gonna go with Alex's 275 Reamer.

 

[Schw15]

Any of you guys mess with n568 and berger 245 combo much?

 

[KH_Outdoors]

Any of you guys mess with n568 and berger 245 combo much?

Working on that combo right now actually! Love it

 

[Schw15]

Working on that combo right now actually! Love it

What are you seeing charge wise and speed wise?

 

[KH_Outdoors]

Here's where I'm at so far. For reference, this is a 300 NMI 35 with the 245 EOL, N568, Lapua brass, 215m. The barrel is a 26" Benchmark 8 tw Med Palma.

Charge Weights/Velocities:
(2 shot average for a quick ladder)

84 gr - 2807

85 gr - 2845

86 gr - 2867

87 gr - 2890

88 gr - 2912

Target below for reference:

Based on what I'm seeing, I plan to target the 86-87 gr range. That looks like a wide tuning window when considering groupings, low ES, & consistent Point Of Impact. No pressure at the top end though.

Overall, N568 seems to be showing better results for me than N570. However, almost exactly 80 fps less velocity for the same charge weights. N568 has shown lower ES/SD's. More temp stable. Cleaner burning. (In my gun anyways).