Superbolt Update #2

[Manuel_FZR]

[Blazini]

Could the cracking problems be due to barrel alignment? Some folks are saying they had no problems,some the bolt cracks within the first 500 shots. Perhaps the bolt isn't the problem at all. With so many after market barrels in use couldn't the problem lie with poor manufacturing on the barrel makers behalf? I shot a cp one piece all last year on my e-mag and by looking at the wear markings in the breech area it's obvious that the barrel is not perfectly aligned. The anno shows wear heavily on one side of the barrel while the other side is unmarked. These problems would be compounded by reducing the bore size of the barrel.

[HyperSnyper]

Originally posted by Gunga


Shocktech is working on this. I don't know how much weight you'd save with titanium, but you can bet it's gonna be an expensive bolt. Titanium is hard to work with in comparison to other materials.

I knw that it would be a little more pricey, but not way out of our range.

A combo of a Titanium Bolt and Titanium Sear would be unreal. Way more durability that the old school SS ones right?


-Hyper

[Riotz]

Maybe aluminum or steel threads inside the bolt, connected together, sort of like what they do with concrete pillars.

[tremis]

Sorry hypersnyper, SS is a lot more durable than Ti. Ti is basically the middle ground between steel and Aluminum. Its stronger than Al and lighter than Steel. It would be nice if it were the other way around and lighter than Al and stronger than SS, but its not. It is also harder to machine and weld. Hence it being more expensive.

Tremis

[jurassic]

The SB was boiled for 10 min and the heat turned off and let set overnight in the pot of water. Removed from the pan the next morning before going to work. After work I hand fit it to a CP .689 barrel and it was very snug. Actually had to force it into the breech. Set the SB on a window sill to dry out as it was swollen from the water soak. After 3 days, tried it in the CP and it fit fine. Not snug and not loose. Cut a foamie in half and trimmed till it fit flush with the end of the bolt and super glued it on. The super glue was the type for plastics and not metal. Before the SB was installed, I tried them in the other barrels ( Dye aluminum .687, CP .689, S P Venturi need a ball gauge to measure the bore as the calipers would not fit past the enlarged muzzle but the breech checked at .695, the stock Minimag barrel at .692 bore.)The SB fit nicely in all of them accept the Dye S/S. Which is the older type with porting at the muzzle only. The bore size is .691. The SB fit very snugly within the breech. The breech was .685 to .689 and was obviously egg shaped. So it 's possible that Blazini is right on his speculation on poor manufacturing of barrels and possible barrel misalignment.
I have shot approx. 1000 balls with SB before discontinuing use at the first announced recall notice and before the boiling procedure. Have not been been
out to the field in a couple of weeks but have shot about 200 balls in the backyard along with some dry firing since the SB was boiled. Some minor wear on the sleeve from the spring but no damage or cracking has been noted and the foamie is still intact.
So! Tom, Please don't give up on the SB. You are on the right track. A lighter bolt is the way to go!

[iisp0tii]

hey tom, can u put the agd long nose bolt on the online store???

[tremis]

I checked the Venom page, it looks as though it hasnt been updated in awhile, but it says they still sell the "thunderbolt". I think thats the way to go for light. Some type of "fiber reinforced" nylon type power pison and face and a Ti body with a tool steel lip for catching the sear. Even has a lil faomie on the end. I think they glue the plastic to the Ti part, but you could leave a lip on the front of the ti part so the pison and face only fits in from the back and you wouldn't have to worry about some punk kid lying about it shooting out and whacking him in the arm. ( Read that with some sarcasm for flavor). Just a thought, I never heard Tom's opinion about the thunderbolt. I should have asked him at the tech conference, but there were so many things to ask and so little time.

Tremis

[Cha0tic]

hey tom,

i like the idea of having female threads on the sleeve and male threads on the SS bolt.

i do not like the idea of aluminum because it will not be a big improvement over the SS. is carbon fiber hard to work with? what if you make the bolt o.d. thinner and the delrin sleeve thicker? would this improve the strength?

the sb problem should be solved. i do not like the idea of this being put on the "back burner".

[iisp0tii]

lets see, there are some more materials u can make it out of:
delrin
plastic
plexiglass
titanium
aluminum
carbon fiber
brass
ok, i dont know if any of these would work, just somthin to ponder.

[Gambit1106]

Tom,

I do not know if this will help in the research on the SB. I have done the boil test today now i did a before and after look at the bolt.

Before: I was using a honed spring, in a E-Mag, using a SP Freak barrel. Shooting average of 270 to 280. I have about 4000 to 5000 rounds and numerous dry fires. What I have noticed it the spring wear is wearing down the delrin right about where the metal on the bolt stops. There is a nice indentation there where I could see a reason for the bolt breaking at this point.

After the boil: I followed the instructions exactly. What I found was with the delrin somewhat swollen you can see these lines more clearly. I tried to make pics with no luck. What I am seeing is a ring around the top of the bolt from spring wear in thew delrin. Second I am seeing a large amount of small lines in the side of the sleeve, along with several larger deeper lines where I could see a area where a stress crack could form.

If you want me to I could send this bolt to you if you want to look at it. I have not shot it yet. Also I will attempt to get my camera to take some better pics of this. I hope this helps.

Darren

[Gecko]

hmmmm i like the barrel alighnment comment.......
Makes sence, havn't heard any issues with threaded barrel guns (extreem micromag). Any micromag users out there with superbolts?
Gecko

[zads27]

Just so you know, I have some experience with carbon fiber materials and manufacturing (mainly in the production of aerodynamic parts for racing cars, and such)

For those who are looking at carbon fiber as a sleeve material, what you're really looking at is a composite material. Carbon Fiber as you know it, is a mixture of carbon fibers and epoxy. The carbon fibers simply reinforce the epoxy.. in the application of a replacement of the current superbolt sleeve, the epoxy is what would be taking the wear, from the barrel, bolt spring, etc,.
This is a possible material for the superbolt sleeve, if.. the carbon fibers are intermediary between epoxy and the bolt, and the epoxy and the outside of the sleeve (where it would have to be relatively thick).
This is because the carbon fibers themselves are the limit of the wear on such a theoretical sleeve. Once the sleeve is worn to this point, the sleeve would have to be replaced.

Though the manufacturing of such a said sleeve would be somewhat different, I do believe it would be possible.

As far as replacement sleeves? Well, unless you could find some pretty innovative way to do it, you may not be able to have the sleeves be replaceable at all, due to the way the bolt/sleeve combo would have to be made. However, if you made the sleeve strong enough, the replacing would be a moot point.

Blah blah, It is an option though. If the delrin doesn't work out, It could be possible to simply chuck the delrin sleeves and make 'carbon fiber' sleeves onto the remaining skeleton ss bolts.

[PRO_Ski101]

I'm not very good at fixing things,but i'm wonderin.I heard a lot of ppl talkin bought the "new" SB coming with foamies on them.Is this tru?

[Chef123161]

Backburner...

I agree with some of the other people. The superbolts should be put on the backburner and then you can concentrate on the extreme bodies :) Just my opinion.