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16ga Handloads - Pressure Test Results
Unread 11-16-2023, 05:10 PM   #1
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Brett Trimble
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Default 16ga Handloads - Pressure Test Results

Gentlemen,

Iíve attached results from pressure/velocity testing I received today.

My intent is to find a good non-toxic, low pressure load using 2 1/2 in cases and 7/8oz of shot for quail/dove and another for Chukar/Pheasant using around 1oz of larger shot.

These are for use in a Lefever 16ga made in 1903.

Please have a look at the results and give me your thoughts.

Best,
Brett
Attached Images
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Unread 11-16-2023, 05:27 PM   #2
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Bob Brown
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Wow, those longshot pressures on the last page are amazing low. I didn't know you could get those velocities with such low pressures. I've got a couple of old English 16 gauge hammer guns I'll try them in.
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Unread 11-16-2023, 05:44 PM   #3
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There’s more variation in that last Longshot load than I’d like to see. I would be a little worried about ignition in cold weather too. A little more powder might help those, I think.

I measured the powder and shot charges individually with an accurate powder scale. Generally, I’m a little surprised by the variation in some of these loads. But… this is the first time I’ve had loads tested!
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Unread 11-17-2023, 03:01 PM   #4
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Nice results. All of these are roll crimp. How does the roll crimp fare against a 6 or 8 point crimp in terms of pressure, more, less, about the same ?
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Unread 11-17-2023, 04:54 PM   #5
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Randy, I haven’t had star crimped loads tested. I’m told roll crimped loads have slightly lower pressure.
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Unread 11-17-2023, 08:10 PM   #6
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You used a nitro card over your powder? I’m not saying this condescending, I’m asking.
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Unread 11-17-2023, 08:41 PM   #7
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Jeff, I did. I read that one or the other powder could migrate with one or the other hull/powder combo. The card is a solution..
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Unread 11-18-2023, 02:47 AM   #8
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Thank you
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Unread 11-18-2023, 09:15 AM   #9
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Thanks for posting. Is Longshot a fine or dense powder when compared with Greendot and Unique. I am thinking of stack height with folded rather than roll ramps and the SG wad in Cheddite/RST hulls.
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Unread 11-18-2023, 10:03 AM   #10
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Quote:
Originally Posted by john pulis View Post
Thanks for posting. Is Longshot a fine or dense powder when compared with Greendot and Unique. I am thinking of stack height with folded rather than roll ramps and the SG wad in Cheddite/RST hulls.

Compared to green dot it is. I was using long shot on a 2 3/4 low pressure load for my 16. I was using two over shot cards and a cheerio. Cut the hull shorter and it worked perfect.
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