Sheridan C9A shoots high



Author Topic: Sheridan C9A shoots high  (Read 213 times))

Offline furstheimer

  • Shooter
  • *
  • Posts: 4
  • yes
  • Real Name: DAVID
Sheridan C9A shoots high
« on: February 10, 2019, 07:14:55 PM »
Bought a 1998 Sheridan C9A at a flea market last weekend. It looked neglected but was all there except for the three screws in the rear sight. Pump linkage was tight and no barrel separation. No pump pressure at all, so I got it for $40.00. I got it home, cleaned out the paint overspray in the barrel, and lubed the pump cup with power steering fluid w/stop leak. After several pump and shoot cycles over 10 minutes, it held two pumps and then 5 pumps overnight! I got some sight screws at the hardware store, cleaned up the wood and metal and now it looks only slightly used.
I fired several rounds at 15 yards and found the rifle shooting high even with the rear sight adjusted to the lowest position. I searched the forum but found no solution to the problem I was comfortable with. My solution was to put a "speed nut"( a spring steel, sheet metal clip that acts like a nut used to connect sheet metal panels. Used extensively on automobiles, cloths dryers etc.) over the front sight to raise it about 1/8". I had to grind some off to make it fit and then epoxied it in place. Works well and looks good. It can be removed with a heat gun if I ever come up with a more elegant arrangement.
  • Murphysboro, IL, USA

Offline Blunderbuss

  • Shooter
  • *
  • Posts: 40
  • yes
  • Real Name: Bob
Re: Sheridan C9A shoots high
« Reply #1 on: February 11, 2019, 08:44:07 AM »
I think you did well for $40 even if you were going to use it for parts ..the fact that you got it up and running is just icing on the cake. Yeah nothing's perfect but as long as you get it to shoot straight.. I just had a similar problem with a brand new gun that's shooting low I have my backsight adjusted all the way up just to get it to shoot straight.....
  • USA, VT, Topsham

Offline avator

  • GTA Senior Contributor
  • ******
  • Posts: 19374
  • Happiness is a warm airgun... -Lennon Modded-
  • Real Name: Bill
Re: Sheridan C9A shoots high
« Reply #2 on: February 11, 2019, 08:50:53 AM »
You can also adjust POI with more or less pumps. That's the beauty of pumpers, adjustable power.
For example:
3 pumps for 10 meters is plenty.
  • From deep within the Rabbit Hole, Alabama
Favorite Everyday Shooters:
Sam Yang Sumatra 2500 carbine .25
Urban .22
AirMax Varmint w/ .22 CP-2 long barrel
AirMax Plinkster .177
CP1 .177 Mini Carbine
CP2 w/ .177 Varmint long barrel
XS-60C GenI .22
2-22XX Carbine HPA .177
2240 Stubby .22
Blaze NP .177
3-M/M Daisy 881
2-Mendoza RM377 .177
2-XS-12 .177
1-Hatsan 1000x .177 Carbine (Pvt. Stryker)
Various Others

AirMax Extreme MKII 4500 (for the tanks)
Vevor Basic. (for the road)
Vintage - too many to list

Online DanD

  • Did someone say mid-sized springers?
  • GTA Senior Contributor
  • ******
  • Posts: 2178
  • A solid maybe
  • Real Name: Dan
Re: Sheridan C9A shoots high
« Reply #3 on: February 11, 2019, 10:45:52 AM »
Hi, David. Good job on that C9A. I like your creative fix to raise the front sight.
What kind of epoxy can be defeated with a heat gun?
  • Binghamton, NY

Offline 1953 Panther

  • Expert
  • *****
  • Posts: 1337
  • I love cheap pellet rifles.
  • Real Name: Noone
Re: Sheridan C9A shoots high
« Reply #4 on: February 11, 2019, 06:14:19 PM »
You can change where the rear sight sits on the barrel to change the elevation also. I have done it on my old 397 and 392.
Daisy 1938 BB gun
Industrial Brand great wall engineered red wooded step child B-1
Crosman 1000X
Pink Crosman 760
Western Auto 760
Bunch'a other cheap Crosmans, Hatsans, and misc Chinese works of mechanical engineering.

Offline Habanero69er

  • GTA Senior Contributor
  • ******
  • Posts: 7149
  • NRA Life Member 🇺🇸
  • Real Name: Dave
Re: Sheridan C9A shoots high
« Reply #5 on: February 11, 2019, 06:19:59 PM »
David, what pellets are you using? Maybe try different ammo? It's an easy thing to try to see if there's any change of POI.
  • Ormond by the Sea, FL, USA 🇺🇸
ΜΟΛΩΝ ΛΑΒΕ




Find other GTA members in your area. 🇺🇸
https://www.zeemaps.com/map?group=962067

Offline furstheimer

  • Shooter
  • *
  • Posts: 4
  • yes
  • Real Name: DAVID
Re: Sheridan C9A shoots high
« Reply #6 on: February 11, 2019, 07:32:49 PM »
I used JB Weld but only a thin layer between the clip and the sight. The pellets used were 14.3 grain CPHP's and JSB Exact Jumbo Heavies 18.13 grains. Same result. I will do more testing when the weather improves. I will also try a light re-crown. Can't be too aggressive with brass. I usually use a pencil in a slow cordless drill with the eraser end sticking out and put some 600 grit sandpaper between the eraser and the crown to smooth things out.
  • Murphysboro, IL, USA

Offline Habanero69er

  • GTA Senior Contributor
  • ******
  • Posts: 7149
  • NRA Life Member 🇺🇸
  • Real Name: Dave
Re: Sheridan C9A shoots high
« Reply #7 on: February 11, 2019, 07:35:41 PM »
Wait, isn't a Sheridan C9A a .20 rifle?   ???
  • Ormond by the Sea, FL, USA 🇺🇸
ΜΟΛΩΝ ΛΑΒΕ




Find other GTA members in your area. 🇺🇸
https://www.zeemaps.com/map?group=962067

Offline avator

  • GTA Senior Contributor
  • ******
  • Posts: 19374
  • Happiness is a warm airgun... -Lennon Modded-
  • Real Name: Bill
Re: Sheridan C9A shoots high
« Reply #8 on: February 11, 2019, 07:49:08 PM »
Something ain't right here.
  • From deep within the Rabbit Hole, Alabama
Favorite Everyday Shooters:
Sam Yang Sumatra 2500 carbine .25
Urban .22
AirMax Varmint w/ .22 CP-2 long barrel
AirMax Plinkster .177
CP1 .177 Mini Carbine
CP2 w/ .177 Varmint long barrel
XS-60C GenI .22
2-22XX Carbine HPA .177
2240 Stubby .22
Blaze NP .177
3-M/M Daisy 881
2-Mendoza RM377 .177
2-XS-12 .177
1-Hatsan 1000x .177 Carbine (Pvt. Stryker)
Various Others

AirMax Extreme MKII 4500 (for the tanks)
Vevor Basic. (for the road)
Vintage - too many to list

Offline furstheimer

  • Shooter
  • *
  • Posts: 4
  • yes
  • Real Name: DAVID
Re: Sheridan C9A shoots high
« Reply #9 on: February 11, 2019, 10:29:19 PM »
Ok, my bad, I did a Mr. Stupid and read the .22 caliber tins instead of the .20 tins. The actual pellets I used were JSB Exact .20 Diablo at 13.73 grains and the Benjamin/ Sheridan Cylindricals at 14.3 grains.
  • Murphysboro, IL, USA

Offline avator

  • GTA Senior Contributor
  • ******
  • Posts: 19374
  • Happiness is a warm airgun... -Lennon Modded-
  • Real Name: Bill
Re: Sheridan C9A shoots high
« Reply #10 on: February 12, 2019, 07:50:12 AM »
LOL.... you had me scratching my head.
  • From deep within the Rabbit Hole, Alabama
Favorite Everyday Shooters:
Sam Yang Sumatra 2500 carbine .25
Urban .22
AirMax Varmint w/ .22 CP-2 long barrel
AirMax Plinkster .177
CP1 .177 Mini Carbine
CP2 w/ .177 Varmint long barrel
XS-60C GenI .22
2-22XX Carbine HPA .177
2240 Stubby .22
Blaze NP .177
3-M/M Daisy 881
2-Mendoza RM377 .177
2-XS-12 .177
1-Hatsan 1000x .177 Carbine (Pvt. Stryker)
Various Others

AirMax Extreme MKII 4500 (for the tanks)
Vevor Basic. (for the road)
Vintage - too many to list

How do you word it... "Air Guns" or "AirGuns"?
Sponsored Ad:
 

Sponsored Ad: