300 gr cast for 45 Colt

[wiiawiwb]

I'm looking to get a 300 gr cast bullet from MBC for use with my Ruger SRH and Rossi 92. Currently am using both HS-6 and Unique although I much prefer HS-6. Trying to find loads and they seem to be all over the map. There's nothing in my Lyman manual.

http://missouribullet.com/details.php?prodId=318&category=20&secondary=14&keywords=

I'm not looking to push the envelope with speed. Just trying to try a larger bullet as I have been using the MBC 250 and 255 gr cast bullets thus far. Hodgdon shows a starting load of 9.0 gr of HS-6 with a max of 10.0 gr with a 300 gr JFP. I'll being using a cast TCFP.

Any thoughts of how I would adjust the 9.0-10.0 gr range to account for a TCFP?

edited: The bullet profile is a TCFLP, not a RNFP so I changed it above

 

[rondog]

IMO, bullet weight is bullet weight, regardless of the nose profile. I'd use the same charge for one 300gr. jacketed bullet as another. BUT, since you're comparing jacketed vs. lead, I'd dial the load back. How much, not sure..... but probably at least to 8, maybe 7.5. Try to find a similar comparison in another caliber maybe, and check other data sources/books/online, etc.

 

[Sunray]

"...with my Ruger SRH and Rossi 92..." Don't think I'd want to use Ruger data in the Rossi, but there's no using jacketed data for a cast bullet.
There's cast 300 grain rifle data on Reloader's Nest. Mostly using H110. Buckets on of for handguns.
The nose profile is irrelevant. Only the base of a bullet matters.