Hey, how’s it going? I know you talked to Ernest but I’ve been watching this thread and wanted to chime it. Slugs are not usually easy to just pick one out and have it shoot, it’s a process. It can happen that way but rarely, very rarely. I would almost consider it crazy to start shooting slugs without cleaning it thoroughly, checking to see how well it shoots with pellets and breaking it in...With and without the moderator. Clean it thoroughly, put it back to the original settings and adjust only one thing at a time and take notes as you go. You’re talking about high reg. settings for slugs but you’re only wanting to shoot 26gr. slugs. When the gun came to you at 110bar. It doesn’t seem very high but for a .22 and 26gr. I would consider that a pretty high reg pressure for those projectiles. There just isn’t much mass. I just tuned down my .25 Impact and it shoots 33.95gr. pellets at 920fps at 110bar...My valve adjuster is closed down to three lines and my HS preload is only about half way. These guns are very capable. After you figure the gun out a title bit, then mess with turning it up to 120, 130, 140bar, I just don’t think that much will be necessary. Maybe? That’s a lot of air with the power plenum. Even then, some guns shoot great with a high reg pressure and a fast shot pulse, others the other way around. It really is a balance between the hammer and regulator pressure. Another thing to watch out for is that slugs can foul a barrel very fast. Even out of a barrel that has been polished and waxed, I can only shoot about 150 slugs before I have to clean it. If I don’t accuracy will suffer. The same barrel will shoot 500-600 pellets before I clean it.
I guess my point is that any of us that shoot a lot of slugs have been in your situation, you’ll get it. It’s so important to take everything one step at a time. After you get some different slugs to test, set your regulator wherever you think you want it, open the valve adjuster all the way and just adjust the power wheel up and down to start. It’s also really important to “season” with about five shots every time you switch slugs before you start shooting groups. Test at close range and as you adjust the velocity with the power wheel, you’ll see the groups either tighten or get bigger. Pick two or three slugs that look the most promising and stick with those. If you mess with too many at a time, you’ll be confused. After you pick the best 2-3, you can dial them in close or move out farther. I usually start at 50, move back to 75, then 100 and beyond. Find a promising velocity with the power wheel like I said and then adjust regulator, start closing down the valve adjuster etc... Don’t worry about shooting too fast, these guns and slugs were designed for “fast”. You are nowhere near transonic. That’s somewhere around 1175fps at sea level, I think? Some will tell you that slugs shoot good at lower velocity at that can be true. However, most of those same slugs will shoot great fast too. More often than not, most of these slugs shoot best between 925-980fps. Stick with it and don’t get discouraged. I’m sure you’re gun will shoot but when you start messing with things and get it out of whack, it may not seem like it. I’ve seen it many times and have done it myself. Get the gun back as close to original as possible, take off the moderator and take it one sep at a time. Use the power wheel to adjust velocity at first and go from there. Be sure to clean it about every 100-150 slugs if you see your groups start to go South.
Good luck, you’ll get it.
Stoti
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