by BD1 » Thu Dec 01, 2011 8:07 pm
I'm loading the 225 FTX over 43 grains of 297 at COAL of 2.240, with very good results. 297 is a couple grains slower than 296 in this application.
Quickload tells me that N110 should be at 100% case capacity at about 35-36 grains yielding around 2,200 fps out of a 16" barrel at around 40,000 psi. Shorten up the OAL to crimp in the cannelure and at COAL 2.120 you'd max out around 33 grains.
Quickload tells me that at 2.120 Bluedot maxes out at 27 grains yielding around 2,000 fps
Quickload tells me that the 1680 would max out around 40 grains for a little under 2,000 fps.
My model in quickload has been developed around Lil Gun, H110 and 297. Blue dot is significantly faster than those powders which makes the Quickload prediction less reliable. 1680 is significantly slower, also making the prediction less reliable. The N110 is closer, and should be more reliable.
As always, start lower and work your way up. Remember. you read this on the internet so proceed with caution. Read through the reloading forum and you get an idea of where to start.
BD