Originally Posted By: yoteblasterHeres what I am talking about, Sierra reloading data out of the Complete Reloading Manual For The 223 Remington
AR-15 load data
Sierra 55 grain SBT #1365
25.7 H335 max load
Bolt action
Sierra 55 grain SBT #1365
27.5 H335 max load in 223 chamber
It shoots great with 27.2 grains of H335 but it shows some pressure signs, flat primers but functions fine. It does have a 5.56 chamber. It shoots the best at all of the top loads but as stated it shows some pressure signs.
But the book says 27.5 as max. Why are you showing pressure at 27.2?
Manuals are not Bibles. They are a guide, based on the equipment and components tested at the time. The test does not simulate what is happening in your gun, only what they tested. Therefore they are all guides. They give you a "safe" place to start, and then they show you where they found Max, but that may differ from your specific application.
