I have been out of the 10mm world for years. I just got a Rock Island Tactical last week for 400 dollars. I get my load data out thats older than dirt. Today I picked some Berrys 155grs. I have no load data for them. I load Berrys in my 38 Super right at high end lead data. My go to powder is Blue Dot. Could some give me some data. Powder on hand Green and Red and Blue Dot. And HS6 and 2400. Thanks I am happy to have a 10mm again.

Lyman cast bullet handbook #4 says 9.7 grains of blue dot starting load for a 401654 150 grain.  11.0 is max.  Starting velocity should be 1218 and max is 1369.

Modern Reloading #2 says 11.1c grains to start (1302 fps) and 11.5c grains max (1340 fps) Blue Dot with a 155 grain Jacketed bullet.

suggest you get some newer manuals.

Thanks. I have Lymans 49 edition. Just wanted to ask and see what people like.

I have loaded lots of Blue Dot over the years, with great results.  10.2 grains to 10.4 grains of Blue Dot has always been great target play with my cast 175 grain bullets
Red Dot can also work well, 175 grain cast  over 6.2 grains

Some Speer Data to study...





Lyman



Alliant 2006 data

Test Firearm - S&W 1006. Nice, I miss my 1006 and my 1076 but once Smith stopped supporting them and stopped stocking parts I had to sell them.

I loaded up 25 155gr Berry Bullet with 11.0grs of Blue Dot and test fired them and damn they are snapping. Thanks everyone for the help.