300 wsm powder

[Magnum_Willys]

17,19,22,26 are all temp sensitive. Ive burned 40 or so pounds of h4831sc in my wsm's and its really been the ticket. Recently been playing with 215 and 230 bergers with Viht n565 and it has also been performing well.

How fast can you push the 215’s ?   2850 ?   Yours is throated long on a tikka action if I recall. 

[Karl Blanchard]

17,19,22,26 are all temp sensitive. Ive burned 40 or so pounds of h4831sc in my wsm's and its really been the ticket. Recently been playing with 215 and 230 bergers with Viht n565 and it has also been performing well.

How fast can you push the 215’s ?   2850 ?   Yours is throated long on a tikka action if I recall.

modified rem 700 SA. With n565 i hit pressure at 2,970. H4831sc was 2,930. 2,885 seems to just be the sweet spot for that gun with both so thats where I've left it. 

[b23]

17,19,22,26 are all temp sensitive. Ive burned 40 or so pounds of h4831sc in my wsm's and its really been the ticket. Recently been playing with 215 and 230 bergers with Viht n565 and it has also been performing well.

How fast can you push the 215’s ?   2850 ?   Yours is throated long on a tikka action if I recall.

modified rem 700 SA. With n565 i hit pressure at 2,970. H4831sc was 2,930. 2,885 seems to just be the sweet spot for that gun with both so thats where I've left it.

The new N568 that is coming out, whenever that is  , with the heavies in your WSM should give you a nice boost above what you're getting with either of those.

[Karl Blanchard]

17,19,22,26 are all temp sensitive. Ive burned 40 or so pounds of h4831sc in my wsm's and its really been the ticket. Recently been playing with 215 and 230 bergers with Viht n565 and it has also been performing well.

How fast can you push the 215’s ?   2850 ?   Yours is throated long on a tikka action if I recall.

modified rem 700 SA. With n565 i hit pressure at 2,970. H4831sc was 2,930. 2,885 seems to just be the sweet spot for that gun with both so thats where I've left it.

The new N568 that is coming out, whenever that is  , with the heavies in your WSM should give you a nice boost above what you're getting with either of those.

im highly doubtful of that. You can only fit so much powder in a wsm case.

[b23]

17,19,22,26 are all temp sensitive. Ive burned 40 or so pounds of h4831sc in my wsm's and its really been the ticket. Recently been playing with 215 and 230 bergers with Viht n565 and it has also been performing well.

How fast can you push the 215’s ?   2850 ?   Yours is throated long on a tikka action if I recall.

modified rem 700 SA. With n565 i hit pressure at 2,970. H4831sc was 2,930. 2,885 seems to just be the sweet spot for that gun with both so thats where I've left it.

The new N568 that is coming out, whenever that is  , with the heavies in your WSM should give you a nice boost above what you're getting with either of those.

im highly doubtful of that. You can only fit so much powder in a wsm case.

Maybe but the new N568 is a SC powder and if it's something like N570 but in SC form, with the 230's particularly, it could do well in the WSM's that are able to run a OAL around 3.200

[jrebel]

Starting working with H4350 today.  I loaded in 0.2 grain increments to find a node.  Shot one factory round first to reference the velocity and then the other rounds with time for the barrel to cool in between.  It was 33 degrees outside so I only gave it a few minutes between shots and think I got pretty outstanding results. 

Beginning load 62 grains to max load of 64 grains of H4350. 
200 yards to target
Lab radar for chronograph

Hopefully the data shows up.  I will also post a picture of the target.  Amazingly all but all rounds shot well up to 63.4 grains, then it opened up and shot right. 

I will work with 63.0 grains and start playing with seating depth.  With that said, it shot 1/2 MOA at current seating depth so may just take it out to 300 and 400 yards and see how it performs.  I'm perfectly OK with the speed being where it is, especially with a powder that is very temp stable and reliable. 

[Magnum_Willys]

Bullet?

[jrebel]

Bullet?

180 grain accubond. 

[CaNINE]

You have some consistent combustion going on around 63 grains. Time to run a seating depth study to tune your harmonics.  Very promising.

[Magnum_Willys]

What a classic ladder - those 300 wsm's and 4350 are well behaved.  62.8 looks like a winner!