N550 info

[glider]

Looking for feed back on N550 powder with;
6.5x47 139gr
260 rem 142 smks
Pros and cons .
Thx

 

[Patch700]

Looking for feed back on N550 powder with;
6.5x47 139gr
260 rem 142 smks
Pros and cons .
Thx

With respect to the 47L , a great powder for squeezing an extra 80-100fps out of that case..

A double based powder that is somewhat finicky when temp swings are abound.
Clean burning when at near max volumetric efficiency.
Can be a bit harsh on bbl life as compared to single based powders in the same class such as H4350 etc.

Personally a favorite powder choice of mine in this caliber... Harder on barrels during fast strings , but barrels are a commodity just as are bullets and powders.

With a freebore of between .160"- .180+" you will see a charge of between 39-41grns of powder in a bolt gun will be close to your top end node (working up to that of course)

 

[glider]

With respect to the 47L , a great powder for squeezing an extra 80-100fps out of that case..

A double based powder that is somewhat finicky when temp swings are abound.
Clean burning when at near max volumetric efficiency.
Can be a bit harsh on bbl life as compared to single based powders in the same class such as H4350 etc.

Personally a favorite powder choice of mine in this caliber... Harder on barrels during fast strings , but barrels are a commodity just as are bullets and powders.

With a freebore of between .160"- .180+" you will see a charge of between 39-41grns of powder in a bolt gun will be close to your top end node (working up to that of course)

Patch thank you for reply .
Just what I was waiting for.
Running 139 scenars and 142s around 2780
26 " Kreiger 4r trying to reach 2820.
130 jlks over H 4350 41.4 grs gets me 2820fps there super accurate rounds .
Want to see how 139 /142s perform with there added wieght over N550 compared to JLK.
Maybe to much for 47l.

 

[Baddog0302]

http://www.vihtavuori.com/en/reloading-data/rifle-reloading/6-5-x-47-lapua.html

 

[ShootDots]

My first 6.5 x 47 that I used for actual F-Open competition, shot a 130gr Berger VLD over 40.1grs of VV N550. It was VERY accurate, was speeding along at 2970, and ate my barrel like candy. I got only 1800 rounds from it. BUT it was accurate and velocity was "up there".. Would I use it again? Not for F-Open. Hunting or some other shooting discipline where long shot strings are nonexistent, it would be a superior choice.

 

[savagedasher]

My first 6.5 x 47 that I used for actual F-Open competition, shot a 130gr Berger VLD over 40.1grs of VV N550. It was VERY accurate, was speeding along at 2970, and ate my barrel like candy. I got only 1800 rounds from it. BUT it was accurate and velocity was "up there".. Would I use it again? Not for F-Open. Hunting or some other shooting discipline where long shot strings are nonexistent, it would be a superior choice.

I found it to shoot very well and fast. But it was very sensitive to temperature changes. Hunting or shooting in colder weather mabey . It is not my choice . Larry

 

[Rustystud]

Used it with 210s in a 308. Great in cold weather. Loads had to be reduced when temperatures went up. It is expensive and not as easy to get in my area.