[doonnzl]

If someones got a spare couple of minutes and a spring balance, Id like to know what weight of pull is required to open the action on an unmodified spring in good condition....

As an example my weak-ass spring weighs in at roughly 4 - 4.5 kg to cock the action OR 2.5 kg until it reaches the hammer and goes up to 3.5 kg to pull it back (already cocked).

PS My bolt has been radiused already, that may decrease the pull required to cock it compared to an unmodified bolt hence the reason for the 3 different readings.

Purpose.... Do we need to radius bolts, do we need weaker springs for sub sonic ammo, do I need to look at reducing friction on my bolt?

Its a field trip!

Sorry..... 8.8 - 9.9 pounds to cock
5.5 pounds then 7.7 for the hammer (already cocked)

 

[cajungeo]

My 10/22 takes 10 lb to cock, and 7 lbs to pull the bolt back, using a spring scale.

 

[New Guy]

This is may sound strange but removing 4 coils from the return spring with the bolt and hammer mods gave me the following results with a RCBS (spring) trigger pull gauge:
4.5 lbs to move the bolt and ~ 8 lbs to cock the hammer
6.9 lbs to pull the bolt back with the hammer already cocked

cajungeo get the award for lightest springs

On another note, I just rechecked the trigger pull for my backup (experimental) trigger assembly - its at 8 oz but I'm working on another hammer which I've gotten down to about 2.25 lbs but it'll be at 1.5 to 1.75 with a little more work. What's trigger pull are you guys using?

 

[doonnzl]

Which leads me to belive I have a friction issue !!!

Cajungeo, was the bolt smooth or jerky when you were pulling it back?.... mine came back in jumps, was not smooth at all. Looking at maybe a polishing project? (would polishing remove too much material and create a sloppy mechanism?) or a coating of some description (teflon?)
Its interesting to see there is F all difference between the bolt moving and rubbing up against the hammer. Do you have the VQ hammer spring in as well?

New guy, all I fitted was a VQ hammer and retained the original hammer spring and made a overtravel stop and Ive gone from 2.5 kg to 0.5 kg (5.5 lbs to 1 lbs) I likes it a lot

 

[cajungeo]

Mine is fairly smooth. I use a gunslick grease on the bolts friction areas, but am ordering a dry powder teflon, as I think it will keep the action cleaner, the grease attracts grit. The only jump was just after it cocked it became easier to pull.

Sorry I was reading the KG scale. So I'll start over. Std spring is 10 lbs to cock, volquartsen spring is 10 lbs, 7 lbs to move bolt after cocked. Trigger is 2 lbs.

Now I must qualify the scales I'm using a cheap fishing scale, but lifted some barbell weights with it to test. + or - 1 lb.

 

[doonnzl]

Is dry powder teflon a permanent coating or a lubricant like graphite?

 

[cajungeo]

Its a lubricant, but unlike graphite, it dosen't turn everything black it touches. I used to use a little squeeze bottle of teflon powder, I believe it was a remington product, but haven't seen it in years.

Here is what I'm going to try, as from being in aircraft, the teflon is very wear resistant.

Dri-Lube with Teflon* contains no sticky oils or silicones. It's an easy-to-apply aerosol that won't attract dust or dirt when used. Evaporates in seconds leaving a dry lubricating film. http://www.theshootist.com/catalog/hoppes/kits.htm
http://www.gunaccessories.com/Hoppes/Solve...Lubricating.asp

 

[New Guy]

I just got back from New Orleans today from a trip from hell, except for the food.

Doonnzl, your problem may not be as serious as you think. Think about how the bolt an recoil spring operate together. When you manually pull the bolt back, it will cant. When a round is fired, the pressure is applied to the center of the bolt but it should cant in the opposite direction due to the recoil spring and guide. Maybe someone can add some clarification to this.

Just for grins, the new trigger breaks between 1.25 and 1.5 lbs. Hope it is reliable - I'll find out this Friday. Think I may checkout the lube cajungeo mentioned.

 

[New Guy]

Went to the range yesterday. The Volquartsen extractor worked extremely well. The new trigger also worked flawlessly. All the original trigger group needs is an extended mag release. Also, it appears that I may have lucked up and cut the correct number of bolt return coils the first time (for subsonics). However, there were four failures to fire and each rim had a good crease in it. Has anyone ever had problems with Wolf MT firing/misfiring?

GO USA & UK :usa: !!!!!

 

[cajungeo]

Here is a cheaper site for the Dri-lube. I find usually Midsouth is cheaper on stuff. Check out: http://www.midsouthshooterssupply.com/item...sp?sku=00013DL1