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| < 16ga. Ammunition & Reloading ~ Felt wads & overshot cards |
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 Posted:
Sun Jul 26, 2015 9:07 pm
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Joined: 28 Aug 2014
Posts: 924
Location: Eastern Tennessee
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I was building a new steel shot load to try for doves I pulled out of Lyman's. I've found the shot column is too short for this load with a psi of 9200. I experimented and discovered a 1/8" felt wad under shot and a thin osc resulted in perfect crimps/shot column.
Should I be concerned about pressure with these type of additions?
I have always followed the advice of this article:
https://www.ballisticproducts.com/bpi/articleindex/articles/curmudgeon_articles/060131_load_adjustments.htm
but wanted to get others opinions. |
_________________
16' Brown A5
15' Brown White Light Citori
13' Brown Upland Spcl BPS
02' Rem 870 Exp
53' Rem 870 Wing
53' Mar 90 DT
50' Mar 90 DT
47' Rem 31L
46' Win 12 (2)
33' Rem 31 |
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| Posted:
Mon Jul 27, 2015 2:50 pm
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Member
Joined: 03 Dec 2006
Posts: 759
Location: Somewhere in the Socialist State of Minnesota
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| Posted:
Sat Aug 01, 2015 10:23 am
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Member
Joined: 12 Mar 2005
Posts: 6535
Location: massachusetts
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Filler wads placed inside the shot cup under the shot can't to any significant degree. Anything placed on top of the shot column or under the plastic wad might. How much is anyone's guess. Lab trials will. Carefully observing field testing might too if the resulting effects are very obvious (not a good idea if the unmodified average load pressures are already over 9.5K PSI or if the gun used is not a stoutly built modern design).
Will a very thin overshot card wad placed on top of the shot significantly affect the load pressure? Probably not the load pressure, but it might very well affect shot patterns. How much? Who can say. Only a pattern board can tell us anything. |
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