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Hi Unregistered,
On July 29th, this site will be moving..! No, really - it's "moving" to another physical location - including servers, gateways, routers - everything - including my coffee cup...
So, from the date of July 29th through July 30 or 31 (shooting for these dates, but - as always, I'm at the mercy of my ISP who has to install the lines to the new location - and we actually get them running ;) ). But - this site, cloud servers and main web will be OFF LINE.
Now, please save these dates!! Please - don't be "that guy" who emails me on the 30th to tell me you "can't open the Parker Website". I'll already know it is offline - and also know that you are "that guy"...
I'll take this notice up and down over the next week or so - and leave it up during the final few days before shutting it off on the 29th..
John D.
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01-27-2012, 09:38 AM
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#21
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Member
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Member Info
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Join Date: Jun 2009
Posts: 3,166
Thanks: 2,021
Thanked 5,748 Times in 1,591 Posts
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A 1970 Hercules catalog arrived in the mail yesterday. It contained the same load data as the 1968 version I obtained. The difference being the 1970 catalog gave specifics on hull type and primer wheras the '68 version did not. Neither cites chamber pressures. Unique is looking like it is a very good powder for use in composite barrels with 1 1/4 ounce lead loads for sure and my intuition based on multiple sources tells me 1 3/8 ounce and perhaps 1 1/2 ounce loads could be tamed to sub 9000 psi with it. I am now awaiting arrival of some mid to late '70's Hercules guides with the hopes they provide further details especially chamber pressures.
If my personal calculations are correct (and I believe I am close) my home brewed crow load of 2 7/8" Fed Hull, Win 209 primer, 27 gr of Green Dot, SP10 wad, .135 NC and folded crimp should be giving around 1150fps and 7600 psi. This will have to be sent out for testing to confirm. My calculations also indicate using 29 gr of Unique in this load should bring about 1220 fps and 7200 psi, again needs to be sent for testing to confirm.
If you decide to use these loads it is at your own risk because they are based on educated guesstimates
As EDM used to say, investigation continues.
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02-01-2012, 10:21 PM
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#22
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Member
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Member Info
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Join Date: Oct 2011
Posts: 40
Thanks: 54
Thanked 2 Times in 2 Posts
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1967 Alcan 10 ga. 2 7/8 1330 fps 1 5/8 AL- 5 44 Grs. 2-.135" + 3/8" FBS
1330 fps 1 5/8 AL-5 41 Grs. PGS + .135" + 3/8" FBS
1335 fps 1 1/4 AL-5 41 Grs. 2 - .200 + 3/8" FBS
1335 fps 1 1/4 AL-5 38 Grs. PGS + .135" + 1/2" FBS
1300 fps 1 1/4 AL-120 37 Grs. 2- .200" + 3/8 " FBS
1300 fps 1 1/4 AL-120 34 Grs. PGS + 2- .135" + 3/8" FBS
All using Alcan 220 MAX-FIRE primers and no to 50 to 60 pounds of wad pressure. Wad pressure should be adjusted to form the perfect crimp.
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