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April 23, 2015, 09:36 PM
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#1 |
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Senior Member
Join Date: July 8, 2013
Location: Littleton, Colorado
Posts: 1,121
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Berry's Bullets
What is the difference between a 9mm, 100 grain, round nose flat bottom bullet and a 9mm, 100 grain, round nose, hollow base bullet, other than one is flat and the other is hollow? Is there an advantage to the hollow base?
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April 23, 2015, 09:42 PM
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#2 |
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Senior Member
Join Date: January 6, 2008
Location: Northeast Colorado
Posts: 1,993
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The hollow base makes for tighter seal in the rifling.
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April 23, 2015, 10:13 PM
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#3 |
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Senior Member
Join Date: March 21, 2013
Location: Idaho
Posts: 5,522
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As Colorado Redneck stated, the hollow base tends to obturate and form a tighter seal.
It also has the advantage of being a longer bullet, so it has more surface contacting the barrel - which bodes well for accuracy. Like everything in life, there's a trade-off: Hollow base bullets don't like to be driven too hard. The base can over-obturate and cause barrel damage (rare) and accuracy problems. The bullet is plated, so you shouldn't over-drive them anyway. If you find the right load recipe, I think you'll be pleased with them.
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