Thread: Signs of pressure in a 6.4x47

Not much help Puffin because my load development for my 6.5x47L was a doodle and I never stretched the envelop to find the last higher velocity node. Just wasn’t necessary and I had no desire to go there.

I was mindful however b4 I started of the very strong 6.5x47L SR primer case's ability to hide to a certain extent the onset of high pressure (within reason) also the Barnard action I have found doesn’t always present sticky bolt lift as early as some other actions. Plus that action has no ejector hole for brass flow. Have tried the head expansion measurements in the past but that is not always conclusive – I had an article debunking head measurements as the finite method but can no longer find it.

My loads gave 2900 for the 123gr Scenar and 2850 for the Berger 130gr VLD.

Cases have had 4 loads now and no issues detected with them to date.

I need to plug these into QL now that I have a copy so I can better understand where I am pressure wise with the loads.

The 130gr Bergers shot 5 shot 100yd groups of =<0.2 on good days and =<0.4 on bad (read me) days.

The equal most accurate rifle I own.