Thread: Signs of pressure in a 6.4x47

As all chambers and barrels are different all traditional methods such as stiff bolt lift flattened primers etc. can be misleading at best dangerous at worst. Use a chronograph and note the fps velocity increase for each step in powder charge. You will note as you reach max there will be a diminishing increase in velocity. That is max do not continue. However in many cases your accuracy node will be below max. It really isn't about those last 50fps its about where it shoots the best.

@Puffin, putting a 6.5 projectile in a 6.4 chamber WILL cause a pressure spike

Sorry dude, couldn't resist. Catch you at the range sometime, my bloody swipe card has stopped working, aargh !

Originally Posted by ebf

@Puffin, putting a 6.5 projectile in a 6.4 chamber WILL cause a pressure spike

Sorry dude, couldn't resist. Catch you at the range sometime, my bloody swipe card has stopped working, aargh !

Did you get to the range today ??

You could've made an @Norway video with real snow !!


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