-
Opinions?
Just finished pressure testing my first reloaded rounds for my 6.5 with standard primers, decided to change from standard primers to magnum due to shortage and because I hunt in cold weather. Question is!! Should I continue without re-doing the pressure test? Or do they make that big of a difference?
Happy reloading!
-
8 Replies
-
Unless you’re running right at the max load charge you’re fine. No, it’s not that big a difference.
-
Why did you test with one primer and then switch? TBH, you’re probably fine if not at max, but you should have developed and tested with the magnums in the first place.
-
You don’t want to find out when you are aimed down on a buck that your load isn’t right
-
Unfortunately, change anything = retest everything
-
If you had accurate loads worked up before just start at the bottom of the node and work back up. That’s enough room to deal with the minor pressure difference and show if the node has shifted any.
-
I see a few comments already saying it’s minimal and really it’s a negligible difference **most** times. But for precision sake rerun it. Only time I see primer swaps making an impact is typically small rifle to handgun (and usually it’s light strikes) in a modern gun we have the tolerances for it but pressure and speed are linked sooo for accuracy I’d redo it. Sounds like you’re on the right track though good luck 👍
-
I voted to re-do the test – mostly because it might change the charge needed for the most accurate load. But confirming pressures is important, too, obviously.
-
I’d make a few and check it with a chronograph. In a cartridge that size, it should make very little difference unless you’re using a temp sensitive powder when it’s really cold outside.
