I would agree that you should not tamper with any of the trigger settings until you are completely familiar with each aspect of the mechanics and how they interrelate. The factory setting is generally suitable for most users.
I purchased my Izzy and it misfired several times during the first few days upon cocking which was very frightening to say the least, never mind the damage the pellet did to one of my kitchen wall units and a door. This was the main reason I had to find out why she was misbehaving and it turned out that the first sear, contact engagement distance was dangerously minimal and unstable, barely making contact. So I had to tweak the second stage creep to give 1mm travel, for safety reasons. She has never misfired since I am glad to say.
I did not mess with the rear sight setting for over a month before I realised that they were a mile out and this was confirmed doing bench rest shots. I was at the time naïve and believed that the pistol had been set-up by the Baikal factory for 10M. Further though this may have been the case, on reflection, I now believe it was tried out by several potential buyers whilst at the dealer’s shop – so in my case caveat emptor was quite appropriate.
Another warning and another reason why I had to do a complete strip down was because I had used a blend of silicone oil plus molybdenum disulphide throughout as I wasn’t able to ascertain the material used for the various seals. Hydrocarbon based products would ruin rubber based seals. Vitol and Nitrile seals are unaffected. I found that my sensitive trigger finger was able to detect the slightest imperfection during the second stage creep. This became evermore frustrating and more pronounced as I am one of those who does not wish to know precisely during the pressure curve cycle when the shot will release but prefer to be taken by surprise. After reading many threads about the misuse of silicone or silicon oils and their detrimental effects on metal to metal contact, galling, I came to the conclusion I had damaged the surface areas of the case hardened sears. After much effort cleaning innumerable times as silicone oil is like liquid glass and impervious to all manner of solvents, sear polishing and relube using “gun” oil the roughness has thankfully gone and hopefully will not return.
I also stripped her down so I could better understand how the poppet valve mechanism worked. Don’t forget Izzy needs to be lubed every 500 shots to keep her sweet and the velocity around 500fps using 7.0gr pellets. Keep her clean and away from dirt or dust as oil and dirt become a metal grinding paste.
The idea of using a long “rolling” second stage creep was to highly exaggerate the pressure curve in order to give the eye, brain, sight picture, and trigger finger time to align everything up for the “subconscious” release. I sadly reverted back to a breaking glass “safe” trigger setting as I took far too long on aim and have problems disengaging my conscious mind – it will happen one day when I least expect it. After seeing how champion 10M-rifle shooter Matthias Stich used a momentary reflexive trigger tap with an 80g pull I thought why not do the same with AP. Well AP isn’t AR and ISSF rules state pull has to be 500g minimum.
As for body type I would have thought that short arms and shorter shooters have a mechanical advantage when holding out the heaviest IZH 46M pistol at arms length. At 60 my 17.5 stone weight and a shoulder height of 1.4M lead me to believe I have been genetically blessed with good upper body strength and I did a 350kg power leg press from cold not too long ago, however, my hypertension and obesity would indicate otherwise.
I made a new palm rest, as I didn’t want to ruin the original, which was digging into my wrist and causing much pain. The new one is perfect and I hope to make a new right side grip. My grip is also 60mm wide and should be 50mm for ISSF compliance.
Comfort is everything as is having loads of fun. It is far too easy for one to get lost in the minutia of analysis, sometimes……..
You might find this site of interest
www.chris-gb-shooting.co.uk
Cheers Torn Fibre