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KrisS

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    Krzysztof Szyszkowski

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  1. KrisS

    Lovex 37.1

    I have tested also other loads with 124 grain bullets and Lovex 37.1 : DMA Reloading FMJ RN 124 gn (OAL 30,10 mm, 9,85 gr for 165 PF), Frontier RN CMJ 124 gn (OAL29,80 mm, 9,82 grn, PF 164) and Frontier CMJ RN MATCH 124 gn (OAL 30,00 mm 9,82gn 164 PF).Again: test it and use it at your own risk. The only complaint on FMJ vs CMJ is FMJ makes compensator very very dirty compared to CMJ.
  2. KrisS

    Lovex 37.1

    This is what works for me but you need to be careful and use it at your own risk. Gun: BUL SAS II UR Open OAL 30,0 mm Lovex 37.1 9,9 grn LOS Bullet CMJ RN 123 grn SP Fiocchi primers Medium crimp It makes 167 PF easily Good amount of gas to run the comp, relatively clean but hard to load. Soft kick, better than Vectan SP2 or VV3n38 I am very happy with it
  3. It still works great. Only the back of the optic is beat up more as sometimes the brass hits it when bouncing from the top of the slide. It happens for some of the brass only but as I am reloading based on picked up brass I am aware of this. As for the photos of the mount itself: it was too low and I had to file the bottom of it so there is a celarance
  4. I mostly shoot 9mm Major and my gun is tuned for it (DPM spring system). at the very begging of my use it was shooting "regular" purchased ammunition with stock 9lbs spring just fine. I tested that with 124gn and 139 gn RN bullets with D032 load as well. Did not have any issues with it but it is temperature and lube dependant as well. With minor loads and temperatures below freezing point the slide became a little lazy and once or twice it felt slow but still was cycling nor had double feed issues. Unless Major ammo is not available at your location what is the sense to use minor ammo in a gun that shoots Major PF? I try to stick to one load to have the gun behave same time on trainings and during the matches. You could tune it for minor loads only of course as well.
  5. Yes it is possible technically still IMHO this is not the optimal approach. There is no regular rear sight so you could use the slot for racker for the mount but then you would have to make custom red dot mount with the integrated racker for specific type of sight. The questions are: - if you will like red dot moving with the slide - how long red dot will be operational and hold zero due to recoil - will you be able to mount something bigger like Holosun 510C on the slide ? - how racker function on the mount will make the mount move/lose zeroing - will you need another custom mount if you decide to change red dot type / mounting pattern - what about thumb rest ? - how additional weight (red dot + racker + mount) will influence slide speed / timing of the gun So looking at that making holes for the mount gives you more functional benefits and flexibility in the long run. So yes it is possible but IMHO that would make criplled gun. Bul originally has 3 holes angled and I wanted to have flexibility and access to various mounts and thumbrest. Making 5 holes for the mount seems to be easier than going fully custom with doubtful functionality. Just my opinion.
  6. Depends of temperature: light oil everywhere when it is cold (and slight amount of grease on barrell lugs) or 0W40 oil during summer everywhere (plus small amount of grease on lugs). I oil gun every 200-400 rounds anyway to keep it run flawless. The fact I do not use a lot of oil to keep red dot glass clean - just thin film will do.
  7. What was used for lubrication ? Due to tight fitting I usually use oil on rails and barrell and small amount of light grease on lugs and slide stop. When it is warm thicker oil is used (to stay on slide and barrell longer) when it is cold light oil. Check if gun is assembled properly and if nothing rubs "more than it should". As slides starts to feels sticky does the gun still works as it should (fully cycles, ejects brass properly, etc) ?
  8. So after 1st match with new optics the impression is great ! I was initially concerned with the additionall weight, unscrewing the mount, brass ejection, dot dancing like crazy due to weight etc but.....nothing like that happened After mounting it as any other optic with red loctite (put some nail enamel check marks on the heads of the screws to see if it is unscrewing) after roughly 700 rounds I can say this setup works as expected and is awsome ! Although it is big due to window size mostly and sits a little bit higher than my previously mounted red dot plus it is a little bit heavier, those are not issues in real life at all and the benefits for me are: - really easy to find the dot even with one/weak hand shooting from some unusuall positions. - transitions are much easier as you can see the dot moving to the target you will be shootiong earlier so less time wasted trying to "find it" - ejection pattern is fixed after small modification/tuning of ejector - so zero stovepipes / ejection problems so far. - all the benefits of different reticles (I shoot mostly the circle only but the dot is also fine in yterms of size/brightness - tested by trial) Wondering how it will hold in the long run but this is not real concern atm. I am very satisfied !
  9. OK so I wanted to change the ejection pattern and adjusted the angle of the ejector. Now no ejection issues, ejection pattern is lower and more to the back (around 4pm) and brass rarely hits the red dot. There are tow cases when it happens: if the splits are sub 15-17 ms and slide starts to come back too early and brass bounces from the back of slide and then from the back / edge of red dot or as I am using the different pickup brass when the brass is somehow used / in bad shape. Overall I am vey satisfied with this setup. We will see how it will behave in longer run Link to video with current ejection pattern https://i.imgur.com/7cYKz0N.mp4
  10. So after 200 rounds I can say I am very satisfied. The brass slightly dings the very corner of the red dot but that does not cause any ejection issues so far. Monday will have more oppty to shoot on level 1 IPSC match so will have more info to add. Here is link to video how it shoots: https://imgur.com/2urrW6J
  11. After a little bit of filing managed to mount 510c on my gun today. Tomorrow will be first test. My only potential concern are extraction issues. I'm a little bit surprosed by the size of the window
  12. The residue from last photo is not from Lovex - it is from Vectan SP2(as described). Brown flakes from earlier photo though are remainings of 37.1
  13. I am using regular Fiochi SP primers. They are priced well, available, have no issues using them etc and they seem to be doing good job in all my 9mm Major loads. The gossip says the Explosia was making the AA7 for American market. Not sure is it true or not but as I am located in Europe Lovex with various powders is IMHO one of the most commonly used powder in Poland, Czech and Slovakia (availability, proce point, various powders range etc). The feature of Lovex 37.1 (apart how it shoots, measures, etc) I like a lot is easy cleaning compared to vectan SP2. Lovex leaves unbrnet brown particles all over inside of the gun but it does not leaves the solid residue. One thing I am not sure yet is its temperature sensitivity and how it influences PF and pressure . Sometimes in winter I shoot under 0 celcisus / freezing point and in Summer it might be +35 Celcius. Below is example what Vectan SP leaves inside and outside gun:
  14. I used Lovex and two other powders for IPC 9mm Major load with CMJ 123 gn LOS bullets (165-167 PF): 1. 3N38 - meters relatively well, shots soft but it requires compressed loads and it is hardly available and pricey in my location plus it fills case almost full so I got a lot of spills (OAL 30.00 mm ; 8,05 gn of 3N38) 2. Vectan SP2 - meters terribly, leaks plus is static electricity sensible and then measurements are +- 0,1 gn, leaves dark hard residue in the gun which requires cleaning more often, leaves rougly 3-4mm from the case rim - so almost no compression, shots nice but it seems there is too little gas but it shoots flat, mid prices issues with availabilioty from time to time (OAL 30.00. 8,7 gn) 3. Lovex 37.1 - meters very good and consitently, if required compresses relatively well, shoots flat and shot impulse is softer than in SP2 but harder than 3N38, leaves no permanent/hard to clean residue in the gun (looks like brown flakes but no dark dirty residue), is relatively dense but you need more of it to get PF, leaves similar amount of space for bullet similary to Vectan SP2 and is available and cheap (in my location). The only downsides with Lovex in general is that they used to have some batches of powder that were not exactly to spceification, but havent seen such case since year or two (OAL 30.00 mm, 9,9 gn Lovex 37.1). Summarising : highly recommending it. Works great and has excellent price/performance for me. This is how the back of the gun looks like after shooting 400 rounds on lovex (looks dirty but is very easy to clean. This is not copper from the brass but lovex remainings):
  15. IMHO simplest way is to glue with superglue two small tabs of polyurethane or other hard rubber/plastic to grip safety. it is easy to remove just in case amd you need no special tools. Cutting the small tabs to required size plus glue assures they will not migrate into the grip.
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