quote:

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Originally posted by Tailgunner:
Yes, it will change your chamber pressures.
So will........
Changing brands of bullets in the same weight.
Changing brands of brass will change your pressures.
Changing brands or types of primers will change your pressure.
Using the same load in a different rifle will change the pressure.
Changing the component "lot #" can change your pressure.
Changing the seating depth can change the pressure.
Changing your socks won't change the pressure

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TG - You left out a change in temperature can change your pressure.

I wonder if shooting up hill or down hill changes it too?

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A well placed bullet is worth 1,000 ft/lbs of energy.

Crimping or not crimping can change your pressure.

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A well placed bullet is worth 1,000 ft/lbs of energy.

The bottom line is as ElD suggests, if you change anything in reloading, it will have an effect in other areas...sometimes several areas at once. Pressure is just one of them. Changes can also effect accuracy, feeding, case life, etc. etc.

As I believe you said you are new to reloading, I say welcome to you. It's a fascinating hobby. Just do your homework, read and study the books and pay attention to what you are doing. Work UP to things and don't try to skate on the razor's edge. And you will live happily ever after.
This hobby doesn't take any rocket scientist to do...just a little common sense. You are showing a lot of sense by asking questions. There is a lot of talent and experience in these forums and 99% of the members will be glad to help you.

Go for it!

By the way, what guns are you reloading for?

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A well placed bullet is worth 1,000 ft/lbs of energy.

[This message has been edited by Pecos45 (edited 05-08-2002).]