410 hull types - Federal, Remington, Winchester...?

[sandspider]

Hi all

 

I'm trying to work up some clay pigeon loads for my 410 shotgun (fibre wad, 2.5"). The only hulls that I have are once fired Eley Fourlong 2.5" hulls. (I know these aren't the best, but they're all I have!) I have Alliant 2400 powder, so I'm looking at recipes on the Alliant website. However, the only varieties of hulls I see loads for are Federal plastic target shells, Remington plastic (STS, Premier), Winchester AA HS and Winchester AA (old type). Obviously, I want my load to match my hull type as best possible - does anyone know which data set I should go for?

 

I would assume perhaps the Federal ones, as they seem to be the most "basic" cases. I e-mailed Alliant but they weren't helpful.

 

Many thanks in advance,

 

Giles

[sandspider]

Actually, I looked at the Federal load data, and it's all using 410 powder, so it's no good to me.

 

I looked at the Remington plastic data, and that does use 2400 powder, and the correct type of primers. However, the wads it lists are SP410, Fed 410 SC, WAA41, CB1050-41 and Duster 4150. There only appears to actually be load data for 2400 powder with SP410 wads. (Is this a plastic wad?)

 

My wads are little pieces of cork in an unmarked bag! Can I use this data with caution (start low and work up) or do I really need to find a recipe that exactly matches my components? (My gun is 3" magnum proofed, so I doubt I'm in much danger working on 2.5" non magnum loads, but I want to be on the safe side...)

 

Many thanks again.

[Andy H]

If you substitute fibre for plastic wads the general rule is that fibre wads will produce a lower pressure due to the less efficient gas sealing compared to a plastic wad where the powder cup expands into the case and bore for a better gas seal.

[sandspider]

Thanks Andy

 

So if pressure and therefore velocity is lower, I should be safer still with a fibre wad in a plastic wad recipe. Perhaps I'm just spending too much time on the internet and should just get out there and try it!

 

Cheers.

[Andy H]

Just checked my reloading data ,For 14.5 grains of vectan sp3 behind a 5/16oz load the pressure is 524 bar with a plastic wad but only 349 bar with a cork wad.

[Floating Chamber]

Just checked my reloading data ,For 14.5 grains of vectan sp3 behind a 5/16oz load the pressure is 524 bar with a plastic wad but only 349 bar with a cork wad.

 

You could use 8 grains of Vectan A0 with that load.

[Andy H]

Vectan A1/AO/AS are all good especially when they are less than £17-00 for 1/2 a kg but they are quite a large flake powder.