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Old August 3, 2011, 06:55 PM   #7
Lost Sheep
Senior Member
Join Date: January 24, 2009
Location: Anchorage Alaska
Posts: 3,340
Overall Length


Thanks for asking our advice.

If a cartridge is too long or too short it may have trouble passing through the action from the magazine to the chamber. It may also not have enough contact between the cartridge neck and the sides of the bullet for the brass to hold onto the bullet when firing. Such a hold is important to build up the pressure for the powder to burn correctly. Smokeless powder needs high pressure to reach the design burning rate.

If a cartridge is too short, the danger is much different. If a bullet is too deep in the case, the volume of free space (not actually occupied by powder granules) can be very small. A small space that is TOO small can let pressures climb very high very quickly and climb beyond what your primer, brass cartridge or firearm's steel can contain.

That's the bad news.

Here's the good news.

Your loading amounts and dimensions are all within SAAMI (Small Arms Ammunition Manufacturing Institute). That's what the loading manuals are for, to keep you safe.

You are golden. Go forth and enjoy.

High pressure is often indicated by difficult extraction, primers that have had the firing pin dent blown back out, primers that have been perforated, case head separation, case mouth splits, short case life, and a long list of others. Watch for these. If you find one, it may not mean high pressure, but just soft primers or something, but if you do find one, come back and ask.

What I am telling you with the above paragraph is to be observant. You have already demonstrated that you are. I am confident that you and your 94 will do well for many years to come.

Lost Sheep
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