Author Topic: Disco SSG thread (Read 55716 times))

Buldawg76 · « **Reply #200 on:** March 26, 2016, 02:28:25 AM »

Quote from: Dairyboy on March 25, 2016, 12:31:08 PM

Like said many ways to skin a cat. I have a WAR SSG for my Mrod and although very similar to that design it's much simpler. There's really no need for a counterbore it doesn't need to be flush with the hammer face and spring wise they typically like a longer lighter spring so it's under constant preload on the bolt. Not saying it can't work how David did it because he proved to us it does work great. I'm just saying there are many ways to do it.

Its just like Dillon says there are many ways to make one and the bolt /guide can be whatever size you feel fits best and no need to countersink the head into the hammer either. I was just trying to show the concept of what is required to make a SSG from scratch and exactly how it is designed and constructed is entirely up to what fits your gun and desires on the capabilities of ease of adjustments and power limits. Those all are what dictate the spring size and strengths and guide size and lengths to either fit inside hammer cavity or protrude from rear cap to be externally adjustable as well as appealing to cosmetics versus function. There are many way to skin the cat in this instance so its all up to your abilities and equipment at your disposal.

Mike

Fullquiver · « **Reply #201 on:** March 31, 2016, 10:32:12 PM »

Mooseslayer: Where did you find your springs at?

mooseslayer · « **Reply #202 on:** April 02, 2016, 05:05:00 PM »

I got my springs at Trakar Springs in Ontario Canada.

http://www.trakar.com/products/compression-spring-length/?HoleDiameterMIN=0.093&HoleDiameterMAX=1.875&WireDiameterMIN=0.041&WireDiameterMAX=0.047&SpringRateMIN=0.1&SpringRateMAX=95&SolidHeightMIN=1.58&SolidHeightMAX=7.98&LengthMIN=10&LengthMAX=18&SolidLoadMIN=0&SolidLoadMAX=200&order=HoleDiameter&submitadvanced=Search

They were 10" lengths in .041 and .047 best for me.

mooseslayer · « **Reply #203 on:** April 02, 2016, 05:13:27 PM »

I cleaned up my SSG a bit.

This was the original...

This is it shortened and cleaned up ready for paint...

David Mccann · « **Reply #204 on:** April 02, 2016, 11:01:52 PM »

lookin good. hows things in canada?

mooseslayer · « **Reply #205 on:** April 02, 2016, 11:21:03 PM »

Got a few days in 50's, but now snowing and wind howling . Just looked out and whiteout. No shooting for me for a bit

Fullquiver · « **Reply #206 on:** April 03, 2016, 10:03:32 AM »

Quote from: mooseslayer on April 02, 2016, 11:21:03 PM

Got a few days in 50's, but now snowing and wind howling . Just looked out and whiteout. No shooting for me for a bit

Same weather here in MI doesn't look like I'll be shooting much in the next couple of days either...

Geoff · « **Reply #207 on:** April 15, 2016, 06:47:25 PM »

Here is my string with my disco double with BNM breech and shroud. I went from .99 to 1.38 avg FPE/cuin per shot, so am happy

http://i1039.photobucket.com/albums/a474/AndrewyChase/FFH%20installed%20041516_zpsdv2vyg1c.jpg~original

mooseslayer · « **Reply #208 on:** April 17, 2016, 07:54:47 AM »

Nice string Geoff. I need to get back and finish testing as the weather is finally getting nice here.

MichaelM · « **Reply #209 on:** April 18, 2016, 01:40:39 AM »

Just jumping in here and showing my disco SSG results this is with an internal "cartridge" style SSG I made for the disco.. will post pics at a later date... its made so the entire spring/guide rod assy can be removed from the rear of the gun and no handtools are need to make adjustments after its installed....

basic statistics are....
Disco Double with
hogged out valve,
custom gauge block that's pretty much full diameter flow,
severely reduced transfer port at .120 ( though I may go smaller to flatten out curve a touch more...)
.039 heavier spring( I believe this is the same spring rstern recommends for over 2kpsi fills

String shot from 2000 to 1300 psi with 14.3 cphp's would get significantly more eff with 18.1's but since I shoot almost exclusively crosman pellets.....

here is the pudding

here is the EFF calcs

I am happy but not entirely satisfied with the center peak of the string.... I would prefer it to stay around 925 instead of peaking a few shots into the 130's.... may try to go to a .110 tp and see if that helps....

mobilemail · « **Reply #210 on:** April 18, 2016, 08:09:02 AM »

Those are some incredibly flat shot strings - it looks like you're shooting a regulated gun! You guys are incredible!

MichaelM · « **Reply #211 on:** April 18, 2016, 01:59:50 PM »

Quote from: mobilemail on April 18, 2016, 08:09:02 AM

Those are some incredibly flat shot strings - it looks like you're shooting a regulated gun! You guys are incredible!

Geoffs shot string is so much prettyier.... lol mine peaks a little higher then Iwould like.... may throw in a .110 transfer port and see if I can flatten it out a touch more

or maybe get some 18.1 and not change anything and see where its at lol

David Mccann · « **Reply #212 on:** April 18, 2016, 05:19:04 PM »

awesome strings guys. we had temps in the mid 70's. we camped all weekend.. lots of shooting time. very calm in the morning. no wind.. seems i have some very accurate 22xx /disco crossbreeds...dime size groups at 30 yrds..one ragged hole most of the time.. lovin it. several ssg installed into all mine except 2.. get to them soon.. very good mod that ssg. thanks bob for sharing.. cheers
david

Buldawg76 · « **Reply #213 on:** April 19, 2016, 02:46:13 AM »

Got the QB bug right now but will get back to my disco tubed 22xx/ challenger/Prod franken gun in time so I am down but not out of the game by no means.

Mike

Dairyboy · « **Reply #214 on:** April 21, 2016, 11:32:13 AM »

I will be trying my hand on the ssg this weekend plan to be an internal one with an adjuster for gap on the back like my Mrods

oldpro · « **Reply #215 on:** April 21, 2016, 05:44:14 PM »

OK ill do it LOL. Been getting tons of emails for me to build a ssg for the disco so ok ill do it. Ive been so busy I just didnt have time but ill make time so if someone sends me their disco(has to be bone stock) Ill build them a ssg and tune it for free (you pay shipping fees.) Then ill use that info to make a bunch of them.

Dairyboy · « **Reply #216 on:** April 21, 2016, 06:01:28 PM »

Somebody needs to take this offer. If i didnt have everything to make one and if my gun wasn't tore apart for cocking issues and without a bolt for who knows how long I would send mine.

Tater · « **Reply #217 on:** April 21, 2016, 06:12:50 PM »

If I could afford it, I'd buy one right now and have it shipped directly to you.

mobilemail · « **Reply #218 on:** April 21, 2016, 08:29:19 PM »

PM sent. :-)

oldpro · « **Reply #219 on:** April 21, 2016, 09:04:29 PM »

PM accepted. We have our volunteer.

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Disco SSG thread

Author Topic: Disco SSG thread (Read 55716 times))