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I ended up with 8 lbs of 1250 and don't have any loading data newer than 2003. I want to use a Fed GM hull, WW primer, 1 1/8 of shot, loaded to 1175 fps or thereabouts. Anyone have an idea of how many grains of this stuff to use? I have been all over the internet and it seems the powder is discontinued, and so is the data.

Thanks
 

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As per XP100 not much data for Accurate 1250, the last book I have (1996) shows 25gr with a WW primer and 12S3 --- 1/1\8 at 1200fps and 8800 LUP for GM plastic. And 26.5gr with WW primers and 12C1 --- 1\18 at 1200fps at 7600 LUP in paper. PSI would be HIGHER.

They don't show anything slower or lighter with 1250. Never used 1250 so that's all the published data I have, and like I noted it's from 1996. so it's 15 year old data. Ross Puls
 

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26 gr will work well as a Caps load (25 gr with Fed 209A primer), 1250 is too slow for what you want.

Solo 1250 was one of the best powders out there for Handicap loads. A lot of folks (myself included) got their feelings hurt when Accurate dropped it.
 

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320090T, the information contained in the 2003 manual is still the best. Newer manuals use a crimp depth of 0.80" instead of the standard .055". I asked their ballistician why and was told they wanted to make absolutely sure they were not understating their pressures.

Here are some loads from that manual:

GM hull, W209 primer, 12S3 wad, 23gr Solo 1250, 1 1/8oz shot, 1200fps, 7100psi. This is the lightest load they list.

same components using 23.5gr, 1255fps, 8000psi.

same components using 25.5gr, 1310fps, 9600psi.

BTW, the previous ballistician told me he would not use 1250 for anything under 1 1/4oz @ 1250fps, because that's when it really started to shine.

Before I stopped hunting with a 12 ga I used 1250 to load 1 1/4oz @ 1220fps. It was a very nice load, but dirty with lots of unburned powder in the bore. I never bumped the load up because I didn't want the additional recoil.
 

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I got much less velocity on my loads than listed above. 25 gr with GM hull, 209A and WTW gave around 1280 fps with regular chrono, less the estimated 30 fps for leading pellet, close to 1250. Fairly deep crimp, too lazy to go measure them now.

Very mild recoil for a Caps load. I went to Unique when Accurate dropped this great powder.
 

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I have their data manual version 3.3 in pdf format (file date 31 Dec 09), and can email it if anyone PM's an email address. It has data for 1250, but only in Remington and Winchester hulls.
 

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I've seen one load for Solo-1250 in Fed Gold Medal hulls, Don Zutz listed it as a way to get better fill in the outer ring of patterns:

Federal Gold Medal hull
CCI 209 Magnum primer
26.0/Solo 1250
Federal 12S3 wad
1 1/8 ounces lead shot
Pressure: 10,100 l.u.p.
Velocity: 1,255 f.p.s.
(Solid hunting load for Modified choke.)

Seems prety stout, no indication if it's best to keep it at this level or if loading it down a bit would still keep it performing well.
 
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