140 grain Nosler Partitions and H4350 in a 7x57 Husqvarna rifle?

[MD]

Just wondering, is anyone else using 140 grain Nosler Partitions and H4350 in a 7x57 Husqvarna rifle?

I use 48.5 grains of H4350 behind 139 grain Hornady Interlock bullets now but have some NPs I want to try in my Husqvarna 4100.

I'm wondering if I should try the same powder weight with the NP bullets?

 

[nowarningshot]

Firstly, and you know this....search around and find some load info for that projectile. Either one of the many paper sources or perhaps Reloaders nest. Start a little light and work up. Simple elementary reloading step.

Personally i use the 160 Amax. Partitions are a slam dunk awesome bullet in everything....good combination of ease in work up and knock down terminal performance. For me with the 7x57 if i dont try to load it to 7 mag levels my results have been good. Using a premium projectile is a better way to increase performance than stuffing a case to compressed. Since speed is much lower than the magnums, a lot of the old inexpensive "Chevrolet" projectiles work just fine like your Interlocks.

 

[Eagleye]

The 4100 is a great action, so you should have no problem with stout loads for your 7x57.

I have shot 52 grains of IMR 4350 behind the 140 Partition in my 700 Classic in 7x57, and still no pressure issues.

I have since settled on the same charge of RL 17, for a bit more velocity than IMR 4350 and tighter groups as well.

Start 4 grains below and work up carefully.

Regards, Dave.

 

[Why not?]

....Personally i use the 160 Amax. ....

Unfortunately, all Husqvarna 7X57 factory rifles have 1:12 twist barrels, and will not stabilize that bullet.

The 140 Partition has been very accurate in every one of those rifles that I have owned, and performs far beyond what one would expect in the '57.

Ted

 

[Neilm]

I would be comfortable in using your data from the Hornady 139 gr with the 140 gr Nosler partition. In my experience the partition likes to be driven fast .