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CVC
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Nosler Brass

I was looking at Nosler brass and it said it was thicker than Remington or Winchester so start at minimum charge and work up.

My question is what effect will thicker brass have on performance?

Also, if it is thicker then does that mean it has less capacity?

Don Fischer's picture
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Nosler Brass

It won't have any effect on preformance. It does have a slightly reduced case capacity so it's best to start a bit low.

I'm not sure what advantage there is to thicker but I don't shoot competatively either. I've used thick and thin cases without any problems and haven't noticed any real difference. I have used a lot of military cases and they are thick. They work fine.

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Nosler Brass

I can't see any noticeable difference providing you are consistant with cases(always use the same)
I did a Google with " Nosler brass weight", some reading but you won't learn a heck of a lot.
I 'm not much help but I said it anyway Laugh Laugh Laugh

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Nosler Brass

For the same powder charge and seating depth, a thicker case will cause higher pressures. That's due to the same amount of powder being stuffed into a smaller space. I've noticed slightly higher velocities when going from Winchester brass to the slightly thicker Remington brass in the same rifle.

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Nosler Brass

CVC
To answer your questions.

Thicker brass will have no affect on performance. What it will do is hold up, longer, for more expansions and contractions during firing and reloading.
If you do a lot of reloading and reuse cases many times over. The thicker the brass the longer they last. What you may notice after several reloads is. The velocity may decrease a bit. This is because the brass is thinning a bit, from use, and the capacity is increasing.
It's wise not to over load cases that you intend on reloading many time over. 1) You may stretch the primer pocket and therefore limit the number of reloads. 2) If you full length resize and have the die set a bit to long. You get case stretch about a half inch above the rim and therefore limit the amount of reloads.

Thicker brass has less capacity. The exterior measurements remain the same for any brass. Therefore thicker brass will have a smaller capacity.

If you don't intend on using the brass more than once or if the intension is to reload the same brass only once. The thinner brass will allow for more capacity and increase the performance a bit

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Nosler Brass

Just to extend what has already been said, thicker brass helps when forming an ackley improved cartridge. The thicker brass seems to take the stretching in the neck better, although some annealing maybe necessary in advance.

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Nosler Brass

The drawback of thicker is that the neck/shoulder area get's worked more times thru more reloads and tends to get brittle. Sometime results in neck and shoulder splits. Some people anneal them at some point to soften those areas. I don't think getting a few extra rounds from a case is worth it as the primer pockets are probably getting a bit loose at that time also.

Thick or thin, you should be able to get 5 or 6 good reloads from the case depending on how hot you load and how well you keep them trimmed to length. Trimming can bring another problam especially with thin cases. If you de-burr inside and out to much, you'll see splits start to form at the mouth of the case early. Not the cases fault but improper de-burring. Couple light turns to champher it and call it good.

Your gonna find guy's like me that thin or thick doesn't matter to, others that want thin thinking they'll get more velocity with the extra capacity, and guy's that prefer thick because they think they last longer. Choose your expert!

Try both and see what you like to use. I doubt you'll be able to tell any difference other than the heavier cases will reach pressure sooner, but not by much.

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