To Kyrie, preasure data.

Thanks, Bob,


Clearly chamber pressure, bullet weight, reloading, etc. are unexplored territory to me. First, assuming case, primer, poweder, etc. were all identical, and only bullet weight varied, would a 147 grain slug create more chamber pressure and be harder on a gun than 115? I don't have any specs on the Winchester ammo, so I'm not sure if the powder load is the same and only the weight of the slug is different, or whatever. Thanks.