It depends on the brake I think. I had previously used MBM brakes and never experienced pressure as a shooter and didn't know why folks were commenting about it but I used a PVA jet blast this year and noticed that pressure blast as the shooter.
Because the caliber is excellent when loaded properly. The .280 comes immediately to mind as one of those grossly under loaded cartridges in factory ammo due to the 760 and 7600 being chambered in it for introduction. Great round when loaded for a bolt action. Not everyone wants to shoot the same cartridges as the crowd.
All SAAMI ammo is loaded to a specific functional COAL, you change that dimension and you can change the dynamics of the pressure curve, which they don't publish data for. They also have to make sure that ammo will shoot in every factory cut chamber on the market with tentatively zero risk to the consumer.
Who says I’m trying to make it faster?? Where in my post did I say I was hot rodding anything? Try following along here. Book values are actually quite fine with me. A 140 grain bullet in a Norma factory whitetail loading chugs along at 2800 fps in my rifle. A 139 grain Hornady Interlock over a book loading of 4831 does 2990 fps. You don’t see the difference here? They underload factory .280 to accommodate the pumps and auto loaders. The .280 should do everything the .270 does, but they neuter the factory loadings. Understand? If I didn’t reload, I would not achieve what the .280 is capable of with factory ammo because the factory doesn’t want the liability of blowing someone’s pump Remington. Get it, or should I write in crayon? And fwiw, I have a 7 mag.
Are you not following along? I AM USING BOOK VALUES. I am not “pushing” anything. I am not exceeding book values. But the book gives me almost 200 fps more than factory. I don’t care “what you believe”, look up the history of the .280 and why it never took off. It was severely under loaded to account for the pumps and auto loaders. My original response to you was “why shoot those calibers”. I gave you a very good example and why folks would want to. All you’ve done is ignored what I was saying and start some BS that I’m “going over book”, when I’ve been clear that I’m not. But for some reason you want to turn this into a pissing match and die on that hill. I’d suggest you learn more about other cartridges than your mainstream favorites.
