|
S |
M |
T |
W |
T |
F |
S |
|
|
|
|
1
|
2
|
3
|
4
|
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
|
26
|
27
|
28
|
29
|
30
|
31
|
|
|
|
4 members (Toby Barclay, Lloyd3, SKB, 1 invisible),
518
guests, and
6
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
Forums10
Topics38,498
Posts545,429
Members14,414
| |
Most Online1,344
Apr 29th, 2024
|
|
|
|
Joined: Mar 2009
Posts: 2,020 Likes: 50
Sidelock
|
Sidelock
Joined: Mar 2009
Posts: 2,020 Likes: 50 |
If it is low pressure you value most, move away from the AA hull and move to a larger volume hull, i.e. Federal Gold Medal.
If it is making the best out of the AA Hull then hit the Hodgdon site or Alliant site as JDW described, there are options thre.
While I do not believe it a great extreme cold weather powder I have found SR7625 a good low pressure powder in a Gold Medal Hull.
Michael Dittamo
Topeka, KS
|
|
|
|
|
Joined: Mar 2002
Posts: 7,723 Likes: 480
Sidelock
|
|
Sidelock
Joined: Mar 2002
Posts: 7,723 Likes: 480 |
To be true to a double classic sensibility you should forgo AA plastic and use paper, Federal paper hulls. I load several light loads in Federal Papers and find them to be a pleasure to shoot.
|
|
|
|
|
Joined: Mar 2002
Posts: 1,815 Likes: 4
Sidelock
|
|
Sidelock
Joined: Mar 2002
Posts: 1,815 Likes: 4 |
KY Jon has a good point. I try to use Federal etc Paper for my SxS loads when possible. They are tradional and give lots less pressure.
|
|
|
|
|
Joined: Mar 2013
Posts: 2,862
Sidelock
|
|
Sidelock
Joined: Mar 2013
Posts: 2,862 |
I load paper when I hand load black powder and roll crimp. You can't beat the smell, it's as good as the smell of the original Hoppe's No. 9....
I prefer wood to plastic, leather to nylon, waxed cotton to Gore-Tex, and split bamboo to graphite.
|
|
|
|
|
Joined: Mar 2009
Posts: 2,020 Likes: 50
Sidelock
|
|
Sidelock
Joined: Mar 2009
Posts: 2,020 Likes: 50 |
While paper is nice and I admit it is a fine quality approach. That said it is not required to go low pressure. It can be done with Federal Gold Medal plastic and some other plastic hulls too.
Paper is nice, no argument there, but it is not the only low pressure choice.
Once you embark on various older styles, paper or all brass you will find some decent psychological rewards. Some are scared off by the complications of older methods and you really should not be.
That said if you want to avoid those minor complications you can stick to plastic and do fine.
Last edited by old colonel; 05/12/14 01:47 PM.
Michael Dittamo
Topeka, KS
|
|
|
|
|
Joined: Apr 2013
Posts: 687 Likes: 48
Sidelock
|
|
Sidelock
Joined: Apr 2013
Posts: 687 Likes: 48 |
I use Cheddite, Rio, B&P and Eley for my 2 1/2" low pressure loads.  From what I've read tapered hulls are designed propel target loads with smaller charges of fast burning powders. Ammo companies don't use them for heavy field loads.
Last edited by oskar; 05/12/14 02:09 PM.
After the first shot the rest are just noise.
|
|
|
|
|
Joined: Mar 2014
Posts: 54
Sidelock
|
|
Sidelock
Joined: Mar 2014
Posts: 54 |
He Gill
I think 5000psi is way low the powder wont burn as designed and the wad is not sealing. If the barrel wont handle 7000psi it wont handle 5000psi and it is over the hill. In a un neglected Damascus gun the barrels are as strong as steel tubes or stronger.
Remember recoil is a function of velocity NOT pressure.
I think steel barrels were much cheaper to make and the bad news about Damascus was marketing not fact.----- Cliff
wear those safety glasses
|
|
|
|
|
Joined: May 2009
Posts: 156
Sidelock
|
|
Sidelock
Joined: May 2009
Posts: 156 |
I would strongly consider going to 7-8K psi, as much below that most powder burn is highly erratic. I really like 7/8 oz 12 ga. loads, have loaded them for over nine years.
My favorite recipes, all w/ AA hulls, all 7/8 oz:
17.2 gr/Clays
17.5 gr/Red Dot
16.9 gr/E3
17.5 gr/Promo
17.2 gr/Clay Dot
All w/ CB 7/8 oz grey wad (AA clone)
You might also try 3/4 oz wads w/ the above powders, but bump up the powder about .4 grains (safe w/ same charges above, just check for acceptable powder burn, i.e., not much residual powder in barrels).
Last edited by GF1; 05/12/14 06:15 PM.
|
|
|
|
|
Joined: Jan 2006
Posts: 9,426 Likes: 314
Sidelock
|
|
Sidelock
Joined: Jan 2006
Posts: 9,426 Likes: 314 |
"In a un neglected Damascus gun the barrels are as strong as steel tubes or stronger."
I was hoping that was true, but it is not.
Soon to be published tensile strength testing showed both Twist and Crolle Damascus to average about 54,000 psi
Hunter Arms Armor Steel was 101,000 psi.
Published tensile strength for 4140 chrome-moly - 90,000-100,000.
HOWEVER, from Sporting Guns and Gunpowders, 1897 in a discussion of the 1891 Birmingham Proof House Report - “…the strength of the Damascus was so much in excess of all ordinary requirements that no fear need be felt of their giving way…”
|
|
|
|
|
Joined: Jan 2002
Posts: 13,158 Likes: 1154
Sidelock
|
|
Sidelock
Joined: Jan 2002
Posts: 13,158 Likes: 1154 |
From another thread I posted on:
All is not lost. You can get low pressures with other powders, too. The last loads I had Tom Armbrust test was with Solo 1000.
Average for five:
1192 fps
5182 psi
1 oz. 7 1/2s
These were in either STS or Nitro hulls, not AAs, but I really wouldn't expect much difference as they are all compression formed hulls. Might want to send a sample to Tom to make sure, tho'.
SRH
On second thought, I need to check and make certain which hull I loaded those in. The letter from Tom A. is out in the shop. I'll get back to you on it, to be certain. Don't want to post any misinformation.
SRH It was STS hulls, the wad was Claybuster 1100-12, and the primers were Cheddite 209, charge was 18.1 grs. Solo 1000. SRH
May God bless America and those who defend her.
|
|
|
|
|
