700X Powder obsolete for 20 ga. trap loads?

[tjs45d]

I picked up a new to me Mec Grabber 20 ga. to replace an old 600 Jr. I have been using for 30+years. I have always used 700X in my trap loads since way back then and never changed powders, bushings, or other components. When I was double checking my drop weight on the new Grabber with a couple different bushings, I decided to look up current loads to make sure I was using correct charge weight. Looks like I am way behind the times. Hodgdon's data no longer lists any loads for AA hulls using Win 209 primers, and 700X powder.
I have always used AA hulls, Win 209 primers, Claybuster CB1078-20 wads, and my 600 Jr. was dropping 12.0 grains of 700X. Question is, do I use up my stock of 700X or switch powders? I have shot thousands of rounds of this load with no issues
EDIT: The load is 2 3/4" AA Hulls - 7/8 Oz. shot

(I have a Dupont IMR handloading guide dated 5/1983 that lists a load of 12.5 gr. using the Win 209 primer and the Win AA20 wad. Velocity listed as 1110 and pressure at 10,800 (LUP) That may have been the data I used when we set up the press, which was probably around the date of this Reloading Guide.)

Thanks for any input ...!!

 

[Stumper]

I don't load 20 ga. My first thought upon reading your load was that most 20 ga data uses slower powders......I went and looked at some of my paper sources......Sure enough- most 20 ga loads use slower powders but there are listed loads using AA hulls and other wads with slightly heavier charges and other hull/wad combos using much heavier charges of 700x. Current AA hulls are different in design than the old AAs but they are supposed to use identical data so I think that you should follow your proven recipe.

 

[kudu]

Use up your powder. Seems like I remember using 700X on some 20 gauge 30+ years ago .You can probably find an old recipe that matches it. I currently use Green Dot in my 3/4oz 20 gauge AA shells. Really cold weather makes them a bit poofy, but I generally don't leave them in a sub-zero vehicle before I shoot them.

 

[hdwhit]

tjs45d wrote:
I have always used AA hulls, Win 209 primers, Claybuster CB1078-20 wads, and my 600 Jr. was dropping 12.0 grains of 700X...

Then keep on. The fact someone stopped listing it in their published data didn't change the characteristics of the primers, powder, hulls, wads or shot.

 

[243winxb]

20 gauge 2 3/4"

Mec 1973 bushing guide lists 7/8 oz, 700X - 12.7 gr , 2 3/4 shells. NO Hull Brand listed. Using a plastic wad.

1999 IMR has a Rem primer 209P , 700X - 13.0 gr, 7/8 oz shot, in a WAA hull , showintg 1160 fps and pressure of 11,800 PSI. RXP 20 wad.

 

[tjs45d]

Thanks for all the replies so far guys..! This board is great in that you can post a question and have an answer shortly!
Once I couldn't find any current data on 700X loads with those components, I started doing some searching and everything I ran across
said 700X was dangerous to use in 20 ga...?? I just wondered how I missed that in the last 30 years...