Looking for 6.5x50 cast data

[mwells72774]

For a lyman 266469 140gr "as cast" with and without GC.

I've got a good bit of win 748 and IMR 3031. Brass will be either PPU or norma. WLR primers.

[lobowolf761]

Check out the Lyman cast bullet handbook 3rd edition. It shows the bullet weight at 143grn using #2 alloy.

[lobowolf761]

I see load data using 2400,imr 4227,imr 4198 & imr 4895

[JeffinNZ]

I think you will find the 266469 is going to be too skinny for the Jap. They are like Carcanos and prefer a fat bullet of .270 ish.

[krallstar]

i use the NOE 269 145Gr. FN 4 cavity GC drops @ .272. I size to that so gas check is same. Had Buckshot make my die. Sized to .272 i can now seat boolit so gas check sits in the neck just as shoulder starts from the neck. Sized at .270 could just get to seat 1 lube ring in.

[bruce drake]

JeffinNZ is correct. look up Beagling a Mold on this site to see how to widen out the diameter on that 266469. I own the same mold and 2 different T38s that do not care for the boolit as cast and sized to .266".

[mwells72774]

Obviously it's irreversible but are there any negative effects to beagling a mold?

[whisler]

Beagling is reversible, you just remove the furnace tape.

[mwells72774]

Oh hm. I've got a lot of research to do.

[bruce drake]

Beagling is a great way to bump the size up just a little bit to help get the diameter you need.

[ukrifleman]

146440I use the .265 RCBS 140gn `Silhouette` mould beagled to .268 for my Type38 Arisaka.
ukrifleman.

[lobowolf761]

Does beagling a mould effect the roundness of the bullet or is that solved when it is sized?

[ukrifleman]

Does beagling a mould effect the roundness of the bullet or is that solved when it is sized?

Beagling a mould might have a minimal effect but, in my T38 at .268, I have not found a problem.

You might have to remove a bit of lead `flashing` prior to loading which is easy enough, I just use my thumb nail!

I fix the gas checks with Lok-Tite and shoot them unsized as cast.

One thing to be aware of, if you seat your un-sized bullets below the case neck into the shoulder of the case, this could tear off the gas check as is passes up into the case neck.

This works well in my rifle, yours might be different.

One thing to be aware of, if you seat your un-sized bullets below the case neck into the shoulder of the case, this could tear off the gas check as is passes up into the case neck, so keep this in mind when seating un-sized bullets.

You just need to trial your mould with some furnace tape and see how you go, it is easy enough to remove and put the mould back to standard.

ukrifleman.

[mwells72774]

That's awesome! Now to find furnace tape. My brother is HVAC so he may have some.

[lobowolf761]

Beagling a mould might have a minimal effect but, in my T38 at .268, I have not found a problem.

You might have to remove a bit of lead `flashing` prior to loading which is easy enough, I just use my thumb nail!

I fix the gas checks with Lok-Tite and shoot them unsized as cast.

This works well in my rifle, yours might be different.

You just need to trial your mould with some furnace tape and see how you go, it is easy enough to remove and put the mould back to standard.

ukrifleman.
Thanks for the info. I really appreciate it. I have just never of beagling before. It may help me with some of my milsurps rifles.