08-27-2020, 01:12 AM
Today, range trip, shoot some chrony data for the 103's using CFE and 2520. Also I wanted to do a ladder for the Lever that I discovered in my stach... 
I'm still crunching numbers but it looks like my node is going to be somewhere around 2680.
I also graphed the powder response I got from these loads in this barrel, to the gas gun loads for the 100 Btsp. which since Hdy seems all over the map I picked that one as being "close" to the 103 Eldx.
Anyway, when I graph the book loads to what I get from the same range of powder, CFE for now, this barrel shoots 80-100 ft/s faster than the book data. No signs of overpressure.
Note the data is for an 18" barrel and I have a 20", so that accounts for some of the delta, but I think I've still got 40-50 more than expected.
Which is good. Now on to trying seating depth to tune the groups a bit.
I'm still crunching numbers but it looks like my node is going to be somewhere around 2680.
I also graphed the powder response I got from these loads in this barrel, to the gas gun loads for the 100 Btsp. which since Hdy seems all over the map I picked that one as being "close" to the 103 Eldx.
Anyway, when I graph the book loads to what I get from the same range of powder, CFE for now, this barrel shoots 80-100 ft/s faster than the book data. No signs of overpressure.
Note the data is for an 18" barrel and I have a 20", so that accounts for some of the delta, but I think I've still got 40-50 more than expected.
Which is good. Now on to trying seating depth to tune the groups a bit.