6,5x47 Lapua and Berger 140gr 26414

[Bora72]

Hello,
can anyone help me to start load with the bullets on the object and some Vihtavuori N140 or N150 or RS50?
My rifle have 28" 1:8" barrel.

Thanks and happy new year!

 

[Lostcreek]

start with 37 grs. of N150 and work up. 37.5 works well for me.

 

[JMayo]

I'm using varget & alpha brass
38.0 , .008 off jam.

 

[noahburleson1]

I don’t have experience with the 140 hybrid but with the 139 scenar, one lot of powder likes 36 grains and my other lot like 35.5 gr of n150. About 2740fps from a 28” Bartlein. I’d recommend starting quite a big lower than that.

 

[Bora72]

start with 37 grs. of N150 and work up. 37.5 works well for me.

Thanks, for the infos, what coal?

 

[Bora72]

I'm using varget & alpha brass
38.0 , .008 off jam.

Hello, I presume that the Varget are similar a the N140?

 

[Bora72]

I don’t have experience with the 140 hybrid but with the 139 scenar, one lot of powder likes 36 grains and my other lot like 35.5 gr of n150. About 2740fps from a 28” Bartlein. I’d recommend starting quite a big lower than that.

Hello, my all terrain bullets are in fact the Scenar 139gr..
But I've some 140gr Hybrid and I woult make some test with this masterpiece of cosistencies bullet!

On the Vihtavuori database for the n150 and the 139gr Scenar the max load are 36gr, but some friend tell me that the max pressure of 56000psi are very underrated for the Lapua brass.

 

[JMayo]

Hello, I presume that the Varget are similar a the N140?

I do not know. The burn rate chart i have has 140 right above varget. A friend uses it at 37.5.
I don't dare tell you how to test it but i personally shot up 100 rounds climbing the amount because most were suggesting a really low beginning.
I'm shooting a bat action, it's a really strong action able to take it.
You didn't say what your shooting.

 

[Clancy]

Hello, I presume that the Varget are similar a the N140?

N140 is faster than Varget. I used to not think so, but it definitely is.

N150 is probably closer.

 

[Lostcreek]

Thanks, for the infos, what coal?

2.845 .
.010 in the lands

 

[Bora72]

I do not know. The burn rate chart i have has 140 right above varget. A friend uses it at 37.5.

Yes really similar to RS50 and the varget.

I don't dare tell you how to test it but i personally shot up 100 rounds climbing the amount because most were suggesting a really low beginning.

Vihtavuory chart are really conservative on is latest database...

I'm shooting a bat action, it's a really strong action able to take it.
You didn't say what your shooting.

Sorry, I shoot with Sabatti, action are proprietary but similar to Rem 700

 

[Bora72]

N140 is faster than Varget. I used to not think so, but it definitely is.

N150 is probably closer.

Yes very smilar to Varget.

N150 are like a H4350 or RL17

 

[Bora72]

2.845 .
.010 in the lands

Thanks!

 

[Bora72]

What are the max pressure for this caliber?
I simulate with GRT and the software give me to pay attention about at 56000psi
I read on the net that the max safety pressure are about 71000psi, are this limit safety?

 

[swd]

What are the max pressure for this caliber?
I simulate with GRT and the software give me to pay attention about at 56000psi
I read on the net that the max safety pressure are about 71000psi, are this limit safety?

63,091 psi. It's a strong case but not 71K. I managed to kill a few early on..

 

[Clancy]

Yes very smilar to Varget.

N150 are like a H4350 or RL17

I promise, N140 is faster than Varget.

N150 is pretty close to Varget.

Just work up.

 

[NZ_Fclass]

N140 is faster than Varget. I used to not think so, but it definitely is.

N150 is probably closer.

Absolutely. I do wonder whether N140 was speeded up at some point, as many believe that it's a Varget burn rate. It's certainly closer to H4895 these days. N150 is really good in the 308 with heavy bullets - unfortunately, it's difficult to get a continuous supply in NZ, and expensive ( what isn't) when available.

 

[Bora72]

Absolutely. I do wonder whether N140 was speeded up at some point, as many believe that it's a Varget burn rate. It's certainly closer to H4895 these days. N150 is really good in the 308 with heavy bullets - unfortunately, it's difficult to get a continuous supply in NZ, and expensive ( what isn't) when available.

On Italy, when availlable, the Vihtavuori powders it is around 165€.
Also RS are about at 150€...