9mm Major HS6 recommendation

[Powder Monkey]

How many grains of HS6 do recommend to push a Montana Gold 115 gr JHP to major PF?  Just got my first case today.  Lucked out in finding it in stock. 
 

[Sarge]

Looked up some old notes. 
8.6-8.8 got me 170&172 PF @1.168 out of full size 2011 no holes.

[Powder Monkey]

Thanks sarge!  

[mscott]

I’m a couple days late here but I run 9.0 gr with 115s to make 172. I suspect lots may vary.

[Powder Monkey]

Thanks much. 

[Powder Monkey]

Thanks again to both of you. I got to the range today and chronoed my two starter loads. The 9.0gr load came in at 182.2 PF. The 8.4gr load came in at 168.9.  TIN coated barrel with no poppels. 

[regor]

 

1 hour ago, Powder Monkey said:

Thanks again to both of you. I got to the range today and chronoed my two starter loads. The 9.0gr load came in at 182.2 PF. The 8.4gr load came in at 168.9.  TIN coated barrel with no poppels. 

 

Your 8.4gr load is in line with what I get out of my Czechmates (5.2" barrels, no popples) with MG 115gr FMJs. 8.4gr @ 1.155" with Winchester primers was 1475fps, 169.6PF. Fiocchi primers were about 40fps slower (used them with my old 115gr Everglades load, which was 8.9gr, 171PF). In general I'd tell people to start at 8.0gr for 115gr bullets with HS6 and work their way up. I've had as low as 8.1 be above power factor with HS6 and different primer/bullet combos.

[Banacek]

OK, I am late to the party but since I used the same powder I used for 38 Super that I did in my 9mm Major  STI DVC and now my 9mm Major Tanfoglio Gold Custom Eric with great success I will add it to the list.

 

124gr CMJ (MGB)

7.8grs Hodgdon LongShot

1390fps Avg velocity from 20 rounds (172 PF)

1.160" AOL

 

Tanfoglio has the V12 barrel, so comp and ports