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<  16ga. Ammunition & Reloading  ~  1 1/8 oz load data for 2 1/2" 16 ga shells
jsamp
PostPosted: Sun Jun 28, 2020 6:43 pm  Reply with quote



Joined: 24 Jun 2020
Posts: 1

I am looking for 1 1/8 oz load data for 2 1/2" 16 ga shells (preferably with a roll crimp, but any reliable pressure tested data would be appreciated. All the manuals I have checked stop at 1 oz. Thanks
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Old colonel2
PostPosted: Sun Jun 28, 2020 8:56 pm  Reply with quote



Joined: 07 Jun 2020
Posts: 224

PM sent.

You will find 1 1/8 can fit in 2 1/2, but it is tight and as you have already figured roll crimping is the way to go.

The only 21/2 1 1/8 data I have is for fiochi with HS6, Longshot, and HS7.

I have found by toying with some 2 3/4 data depending on the wad, and with a roll crimp you can fit it into 2 1/2 hulls.

Lastly I have found that 1 1/8 fits 2 1/2 RMC brass with ease


Last edited by Old colonel2 on Sun Jun 28, 2020 8:58 pm; edited 3 times in total
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Old colonel2
PostPosted: Sun Jun 28, 2020 8:57 pm  Reply with quote



Joined: 07 Jun 2020
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Duplicate
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Swampy16
PostPosted: Mon Jun 29, 2020 4:26 am  Reply with quote



Joined: 17 Oct 2019
Posts: 453
Location: New Jersey

Are Fiocchi and Cheddite very different? I’ve read they can use the same data. I’d like to try those in Cheddites hulls. Can you post the recipe? I’m ordering 500 Cheddites today and 500 SG-16 wads. I’ve got a lot of roll crimping to do, lol.
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Old colonel2
PostPosted: Mon Jun 29, 2020 11:43 am  Reply with quote



Joined: 07 Jun 2020
Posts: 224

While it is possible fiochi are near identical to cheditte they in my experience are different and have different data listed for them. Are they close enough that the data interchanges safely, maybe, however I do not feel comfortable posting that as I cannot authoritatively prove it.

The fiochi 2 1/2 hull (cut down to 2 1/2) with a 1 1/8 oz follows:

23 grs HS6, TC16 wad, Fiochi 616 primer, 8,800 PSI 1220 FPS source was BPI 16ga version 5
25 grs Longshot, TC16 wad, Fiochi 616 primer, 8,900 PSI 1190 FPS source was BPI 16ga version 5


I did find one fold crimp cheditte 2 1/2 hull recipe with 1 1/8 oz lead posted by another 16ga member "Bowbuilder"
24 grs Longshot, SP16 Wad, Win 209 primer, 10,600 PSI 1305 FPS, I do not know where it was originally sourced from
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UncleDanFan
PostPosted: Mon Jun 29, 2020 5:59 pm  Reply with quote
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I would suggest using a Federal hull, which has more internal capacity. I've loaded roll crimped 1 1/8 loads in them with Longshot and Z16 wad with great results.

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Old colonel2
PostPosted: Mon Jun 29, 2020 6:29 pm  Reply with quote



Joined: 07 Jun 2020
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Concur the federal hull is a better place to start.

Though if possible activ is even better as a place to start.

All said I really like the RMC brass.
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MaximumSmoke
PostPosted: Wed Jul 01, 2020 8:19 am  Reply with quote
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UDF says:
Quote:
I would suggest using a Federal hull, which has more internal capacity.


What?? For the same hull length, the Fed Hull has less capacity than Cheddites or the current Fiocchi 16's. It's basewad is higher, and its hull walls are thicker.

Agree on the load fit, though.

By the way, does the original poster really need 2.5 inch hulls? I see people trim hulls to 2.5 inch all the time, and always wonder why. Does the OP have a 2.5 inch chamber, or is it really a 2 9/16 inch gun? In my experience, only British 16's come in 2.5 inch, while the rest of the world used 65 mm for the shorter chamber or 2 9/16ths in the US. Sixty-Five millimeters is 2.559", and 2 9/16ths is 2.563 -- a .004" difference -- unlikely any difference in the real world considering the variations of hull manufacture. Anyway, that extra 16th inch beyond 2.5" will definitely get any load that fits into a 2 3/4 inch hull with a pie crimp into a 65mm or 2 9/16" hull with a roll crimp, so do not trim to 2.5".

Some folks worry about higher pressures for similar loads in shorter hulls. This is not a big concern if the components inside the load are the same, and besides, the roll crimp compensates for that. Roll crimping almost always results in a pressure reduction (and sometimes only a very slight velocity reduction). Roll Crimp depth, by the way, should be about .070" to .080" -- slightly greater than a sixteenth inch -- about 2mm is perfect - certainly not greater than 0.1 inch (2.5mm).

One can also go through the math on this. Free hull height above the shot should be about 5/16ths inch for most plastic wads (they have some compliance), or about 3/8 to 7/16 inch if using fillers that are not so compliant, like fiber wads and cards. The 2 9/16 inch hull is only 3/16 inch shorter than the 2 3/4 inch hull. If one only needs about .160" to .200" of hull free above the shot to make a roll crimp, vs. at least twice that to make a pie crimp, the load fits either hull length, with the appropriate crimp. Finished height of the shell will also be about the same. One only needs to look at old factory stuff from the '30's and '40's with the same loads in both lengths in hulls that are otherwise identical, the longer hull in pie crimp and the shorter hull rolled.

Cheers and Happy Reloading!
Tony
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Brewster11
PostPosted: Wed Jul 01, 2020 10:28 am  Reply with quote



Joined: 08 Feb 2009
Posts: 1301
Location: Western WA

Tony,

For what it's worth, I trim my shells down to 2 1/2" because the extra sixteenth sometimes causes the empty to hang up on the ejection port of my little M12, and occasionally the A5. It's usually a reload with a raggedy lip.

B.
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WyoChukar
PostPosted: Mon Jul 06, 2020 5:10 pm  Reply with quote



Joined: 16 Jul 2015
Posts: 2124
Location: Hudson,Wy

Not sure if this helps, but here is a recipe that uses q 2 9/16" Fiocchi hull:
1 1/8 oz. lead shot
Rem SP16 wad
22 gr. 800-X
CCI 209 primer
1,260 fps
10,200 psi

I believe this is a fold crimp load, but the source doesn't list crimp style. I have been loading some fold crimp 1 oz. loads with Longshot powder and feel the Longshot is the best bet for working up an 1 1/8 oz. load for fold crimps, but haven't felt the need for it in my 2 1/2" gun. With roll crimping I imagine that it would be pretty easy to fit 1 1/8 oz in a 2 1/2" hull using LS.

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