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Old September 6, 2012, 07:04 AM   #13
SL1
Senior Member
 
Join Date: November 8, 2007
Posts: 2,001
+1 on advice from mrawsome22.

But none of those are sure things for exceeding SAAMI peak pressure limits. Going with unusually fast or unusually slow burning powders can produce higher or lower PEAK pressures than the more normal buring rates while still producing similar feel and sound when fired.

So, the best thing to do is stay with the components and loads in your data, And, if you need to change the COL to obtain reliable feeding in your gun, evaluate the effect on pressure that your change will produce. (Folks here with the QuickLOAD program will help you with that, if you post a request.)

Most 9mm guns are made pretty well, and are much more likely to prematurely wear and batter into a state of inaccuracy rather than blow apart with loads that are somewhat too hot. On the other hand, some of the guns made for lower pressure rounds, such as .25 ACP and .32, and perhaps .380, may not be made out of materials that are as tough. Pushing those is more likely to create a blow-up.

SL1
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