375HH Swift 250gr A-Frame load data

[Jefferry404]

@FlyGuy
I try to fit QL to known data, reload 3 rounds and measure velocity with LabRadar, then adjust QL burn rate to match the velocity.
Regarding Swift. I use 10733psi for the start pressure and per QL developer Herr Brömel., was measured in a lab.
FYI, i posted quite a bit about the Swifts, here is a link

J

Post in thread 'Need help, Load discrepancy Swift vs Hodgdon'

Mar 19, 2024

Buried in snow here, nothing better to do...
Using Hodgdon manual and of all the load data, only the 7mm-08 has data for hornady and swift a-frame same bullet weight. Here is the data:

Hodgdon Data:7mm-08		powder	charge	vel.	psi
139 gn hyd sp, OAL=2.800, 1.157, 0.382		h414	45.5	2710	43339
140 gn swf sp, OAL=2.750, 1.115, 0.390		h414	46.0	2791	57133

...

• Jefferry404

• 

FYI, Swift manual states their loads are pressure tested.
Steve