I am working to develop a load for each of the above powders. I have found clearly defined maxes in several books and from the Hodgdon's site. I will be running this ammunition in an RPR with a PVA 26" Barrel. My question is that as I prepare for the OCW load workup, I see quite a few folks posting loads well above max. Is there a rule of thumb about how far above max the true max is (again, I understand that this varies from rifle to rifle). If the book max for H4350 and a 130 is listed as 39.2. How far above that do most people venture (5%, 10%...etc.) when loading their OCW test. I don't want to spend time loading several iterations above the max if it may be to high. Dan Newberry indicated that one should load one iteration above max. We that would be far lower that may report their sweet spots to be. For example. With H4350 many people state that 42 grains is a well know sweet spot. That's a full three grains above book max. Is it common to go that far above max?
I'd like to add that, It is my intention to run the 130's in a Pmag, not and AI mag. So far my measurements indicate that I will be 10 thou off the lands at Pmag length. Anyone see an issue with that?
Also, do any of you have info to offer regarding with the above?
Thanks,
I'd like to add that, It is my intention to run the 130's in a Pmag, not and AI mag. So far my measurements indicate that I will be 10 thou off the lands at Pmag length. Anyone see an issue with that?
Also, do any of you have info to offer regarding with the above?
Thanks,
Last edited: