I'd like some feedback on keeping the the oem springs installed. Really looking at being closer to the 3-3.5 lb mark. Could this be achieved with the oem springs? If it it ends up at 2-2.5 lb I can live with that but would like to avoid it if possible as I'm a little worried about sear drop safety.

The sear drop safety is 99.999% a lawyer conceived issue. I have never heard of a single case of a Mark pistol firing because it was dropped.

The main spring pushes the hammer forward, while the sear spring pushes the sear back. So a muzzle-down drop would just send the heavy hammer (and spring force) further down onto the light sear. A muzzle-up drop would tend to push the hammer back off of the sear, but the sear spring would continue to push the light sear into the hammer notch. Think about how the bolt does this same thing with every single shot. How often does the hammer follow the bolt down without being captured by the sear?

If your sear spring was bent/broken/missing, or misinstalled - I could see an unintended fire happening IF the drop occurred from abnormally high position AND the pistol landed in just "the right" position. Otherwise, it's nothing very likely to occur.

Most of the trigger pull weight reduction comes from the smoother sear that Volquartsen makes. 2.0 to 2.5 pounds is normal when using their sear. If you want a heavier pull, look into finding/making a trigger return spring heavier than OEM. About 40% of the spring weight goes into the trigger pull. The rest goes into lifting the trigger bar for good resets.

 

Thanks for the insight! Do you have any brands you recommend for extra power trigger spring? I can't locate a source online for mk iv.

 

I would highly recommend going ahead and buying the Volquartsen trigger that includes the pre-travel/ over-travel screws. They are available in black or silver finish and I always get the silver as it is made of stainless steel and the black one is aluminum. The fit of the Volquartsen is very precise and it will improve your overall shooting experience. As far as springs are concerned, I went back to the stock trigger return spring, I liked the more positive feel and operation of it better. The overall action and trigger pull will be much improved. I have done a number of installs with the Volquartsen accuracy kit and each have been a major improvement. My only complaint on some has been they still left a bit of creep, which generally is smooth but it takes a little stoning to eliminate.

 

I would highly recomment going ahead and buying the Volquartsen trigger that includes the pre-travel/ over-travel screws. They are available in black or silver finish and I always get the silver as it is made of stainless steel and the black one is aluminum. The fit of the Volquartsen is very precise and it will improve your overall shooting experience. As far as springs are concerned, I went back to the stock trigger return spring, I liked the more positive feel and operation of it better. The overall action and trigger pull will be much improved. I have done a number of installs with the Volquartsen accuracy kit and each have been a major improvement. My only complaint on some has been they still left a bit of creep, which generally is smooth but it takes a little stoning to eliminate.

Enabler alert.
*Thanks for the feedback here.
*Like the OP many of us are on the fence like me. I found a local gunsmith and he will check my work as well as order the kits & parts. Trying to get ready for spring leagues just to have fun and compete against myself and others.
Not getting any younger here. Learning new tricks.

 

I like how you say ‘Bought it last week, put a thousand rounds through it!’

 

Purchased it at an indoor range facility. Out of the box straight to the firing lane 15 minutes later.

 

As others have said you can't go wrong with the Volquartsen Accuruzung Kit. I have two MK IV's and have the Volquartsen kit in both. I did put Tandem Cross triggers in both as I like a flat face trigger over the curve face trigger but that just my preference.

 

So I have a 1982 ruger mark ii I did the vq trigger, main spring assembly, sear,as well as the disconnector. I also put the wolf reduced power spring kit in with some polishing I ended up with a 1# trigger pull with little over travel.This gun is drop safe i did through testing don't be afraid it has a manual safety and is totally safe if you follow the basics brother .

 

Check with wirthweinguns.com. They custom build Ruger Mk series pistols and have all kinds of parts. I believe the owners name is Lee and is very knowledgeable. I have spoken with him on the phone when I had a question on some parts and he pointed me in the right direction.

 

Installed the kit today left the oem springs on. Trigger is now at the 2lb 14 oz - 3 lb range. Pretty close to my goal of around 3-3.5 lb range. Definitely a little lighter than what I’m used to but not as bad as I worried about. Trigger pull was 4 lbs stock. Pre travel is still there with the oem shoe but it’s ok. Reset and wall break is very crisp. I can’t wait to test it on the range.

 

To address your stovepipe issue….have you tried to hone your magazines?? I did this process to my mags and have had zero issues with feeding or stovepipes!! (see YouTube link below) I highly recommend it! I also just ordered the Volquartsen accurizing kit, waiting for it to arrive so I can install. Can’t wait!!