Lyman 525 & NEF UltraSLug

[Greg5278]

Judging by the brass deformation, and the Ironing of the crimp, You are way overpressure. You will need to back off more than just 2 grains. The accuracy sounds very good, but you should get the load pressure tested after you back off. Tom Armbrust at Ballistic Reseacrh can test them for you. I would guess you current load is around 15K PSI maybe a touch more.
Please be careful. Maybe try IMR 4759, I use it with a 605gr slug at get high velocity and low pressure. My load uses 64.0 Gr. of IMR 4759 and gives 1555 FPS @ 11,400 PSI
Greg

[phaessler]

Thanks Greg5278, the 50gn loads were real hot, and thus exhibited those first signs of excessive pressure. I have another lot of slug rounds, at different charges, that I plan to send out. Have had excellent sucess with lighter charges, as much as 14% less powder.
I have found that the Fiocchi hulls while new, they offer little in the way of basewad strength and support, and even down to 38-40gn BlueDot loads, they deformed into the ejector area.
I will be posting the data as soon as I get them sent out, curious myself, but sidetracked with my .45-70 at the moment, and coyote hunting.

Pete

[filthygovmploye]

gonna necro this thread, any new developments in the last 3 years??

[SuperBlazingSabots]

Greetings Pete and Peter, this post brings back memories of good friends, please don't forget this Slug Shooter's family, your family!

Best regards,
Ajay
BlazingSabots@Gmail.com
Blazing Sabots, LLC
www.BlazingSabots.com
http://www.facebook.com/BlazingSabots?ref=hl
www.PreciousVideoMemories.com

[flak]

Hello to all.
My name is Valentine and I write from Florence.
I read your post just now.
We, too, in Italy we use the lyman slug with excellent results on the boar.
We use wads nobel sport GT 21 mm but I do not know if they are available in the U.S..
Are rigid and do not break through at the moment of launch
I hope to be of help uncork

[littlejack]

Hey Valentine:
Welcome to the CastBoolits.
Jack

[TonyfromItaly]

Ciao Valentine!

i write from Florence too. I make my own molds besides using lyman's and lee's- welcome to CastBoolits.

antonio

[45beargun]

this is an excellent thread with lots of hard work being shared

I'm curious to know how the 2400 loads worked out

[dverna]

I was hoping to see the pressure results. But either the testing was never done, or the results showed over pressure (my expectations). Still, some very accurate results for the 525 - so the slug can shoot if we get things right.

Don Verna

[phaessler]

The testing was done and it was high, just shy of 13K. Havent been back to revisit it using a lighter charge either.
Thanks for the interest.
Pete

[SLEI]

Hello to all.
My name is Valentine and I write from Florence.
I read your post just now.
We, too, in Italy we use the lyman slug with excellent results on the boar.
We use wads nobel sport GT 21 mm but I do not know if they are available in the U.S..
Are rigid and do not break through at the moment of launch
I hope to be of help uncork

This is old topic but I'm loading Lyman 525gr slug with am. GT21 and RS27 wads from Siarm.
Is shot cards or other material needed between wad and slug?

[SuperBlazingSabots]

Greetings, I surely miss my friends here Pete and Peter Nap, they were both very friendly and openly shared their findings with all others right here.

Hope they are safe and well in times like these.

Best regards,
Ajay K. Madan
Super Blazing Sabots