Hey guys, where can I find out what the different chamber pressures are for my 300 Weatherby mag. I'm using IMR 7828 trying out loads from 80.5 grains up to the max of 84.5 grains as per nosler reloading book. With a 180 gr accubond. Thanks, John
You are entirely correct. There are min/max dimensions on everything. While modern machining methods are very accurate, you can't make everything to net designed dimension. I'll give you an example. My Dad had a 03 Springfield and so do I (I have his now as he is gone). His gun has a chamber that is very loose (near max dimensions) while mine is just the opposite, very tight. His fired brass is so large that I can't close the bolt on it in my gun.The big problem with chamber pressures is that what is a safe load in my rifle may not be a safe load in your rifle with the load being equal.
Is your 300 Wby a Weatherby Mark V. The Mark V typically has a ton of free bore which I am told helps to reduce pressure spikes.Hey guys, where can I find out what the different chamber pressures are for my 300 Weatherby mag. I'm using IMR 7828 trying out loads from 80.5 grains up to the max of 84.5 grains as per nosler reloading book. With a 180 gr accubond. Thanks, John