338-378 weatherby Ramshot LRT loads

[hemiluver]

Friends totally new here and was wondering if you legends could help a brother out? I cant find any load data for 338-378 with Ramshot LRT. I really just need a starting point and the targeted bullet is both 265gr Accubonds or Hornady ELD-X 270gr

Thanks-Gary

 

[sable tireur]

You might find something useful in this thread:

https://www.longrangehunting.com/threads/ramshot-lrt-powder.203398/

I found that LRT was just a pinch too slow to get the most from this case. Close but not quite up to what I wanted.

The three I found which worked better for me are:

VVN-570
Norma 217 (discontinued)
Retumbo

Enjoy!

 

[budlight]

I've owned several wildcat calibers with ZERO information. So I used two things. Similar case volume and the burn rate chart.

The 338-378 is so big that it makes my 338 Lapua look like a ladies rifle in case volume. So similar case volume is a no go. The burn rate chart is your only friend. Find loads of similar powder,

Chart of All Rifle Cartridges by Case Capacity – Backfire

backfire.tv

one of the newest burn rate charts:

Hodgdon – Hodgdon Powder Company

hodgdon.com

 

[memtb]

I can't give you much help on that particular combination!

But, I can say….Welcome from North-Central Wyoming! memtb

 

[hemiluver]

I've owned several wildcat calibers with ZERO information. So I used two things. Similar case volume and the burn rate chart.

The 338-378 is so big that it makes my 338 Lapua look like a ladies rifle in case volume. So similar case volume is a no go. The burn rate chart is your only friend. Find loads of similar powder,

Chart of All Rifle Cartridges by Case Capacity – Backfire

backfire.tv

one of the newest burn rate charts:

Hodgdon – Hodgdon Powder Company

hodgdon.com

Thank you good sir!

 

[hemiluver]

You might find something useful in this thread:

https://www.longrangehunting.com/threads/ramshot-lrt-powder.203398/

I found that LRT was just a pinch too slow to get the most from this case. Close but not quite up to what I wanted.

The three I found which worked better for me are:

VVN-570
Norma 217 (discontinued)
Retumbo

Enjoy!

Thank you so much!

 

[Window]

Friends totally new here and was wondering if you legends could help a brother out? I cant find any load data for 338-378 with Ramshot LRT. I really just need a starting point and the targeted bullet is both 265gr Accubonds or Hornady ELD-X 270gr

Thanks-Gary

Is Ramshot all you have? If so, no worries. By chance, do you have any H1000?

 

[hemiluver]

Is Ramshot all you have? If so, no worries. By chance, do you have any H1000?

I have H1000, RL25, and others. The problem is like most powders they arent readily available. I found a bunch of LRT. The gun loves RL 25 with 225 TTSX bullets but doesnt seen to like the 265 and 270gr and I ran out of RL25 before the load was to my liking

 

[HRM Johnny]

Welcome from Virginia.