For my 375 H&H I am loading a reduced-load for plinking and possibly very close hunting. Open sights.
235 gr Speer with Somchem 335 powder.
https://www.somchemreload.com/search?c=8&f=127
Start load is 64.7 gr.
Is 60 gr too low?
If not, is a filler of tissue paper (I have no dacron) necessary?
If so, is a .75" square adequate?
Advice will be appreciated.

No knowledge of this powder.

But, 60 grains is 10% less than starting load, so should not be a problem.

I think you won’t need to use a filler for that much powder.

For reduced loads we usually use pistol or shotgun powder.

Works best.

Thanks Saeed.

dryer lint works just as good as Dacron.

quote:

Originally posted by Lamar:
dryer lint works just as good as Dacron.

Excellent idea! Never would have thought of that.

I use S335 for .577/450 and .450 No. 2 Musket. About 35grs for 1200-1250ft/s with cast lead bullets in the order of 500-550gr.

In full-size cases I use toilet paper as filler, although most of the time I use reduced-volume cases.

If you want to use a toilet paper filler, determine what size you need to fill the whole available space when wadded into a ball. In my experience powder migrates into loosely-wadded material (whether dacron or TP) with handling, leading to inconsistent velocities in older ammo that has been handled some.

Thanks Peter
I was wary of stuffing too much paper in there, but you reckon that tamping it down is better?
I can see that if it is too loose then granules will slip around to the case mouth.

do not tamp a ball of anything down on top of the powder and leave loose room above it.

the filler material must touch both the powder and the base of the bullet.

think about an engines piston coming up against both valves closed.
only there ain't no spark to slow it down.

Agreed, a load with a filler should effectively be a compressed load.

The problem is not so much powder migrating past the filler, but even into the filler.

Capok is easy to get from Taylor’s.