DREAMLINE TUNING QUESTION

[hitech]

I'm coming to the party late, but I noticed that you have the FX chrony. Do you shoot for groups with the chrony attached? I asked because I did at first, and noticed that if my chrony was attached, my groups would open, I think it's a harmonic thing with longer barrels. I don't own an FX rifle, but I have the FX chrony and it was attached to my Edgun R3M long shooting 50 yards. If I took my chrony off to shoot groups, the groups tightened up. Yes, I know, the chrony should be attached so that you can get your tune correct, but I found that adding weight to my barrel, and the fact that it's not secured (rubber bands...) may cause accuracy issues. So, now I just take some shots with the chrony to get my FPS, then remove it and shoot for groups. Also, you can try to experiment putting the chrony on a small tripod under the gun and pointing the chrony towards the pellet path and see if you can get consistent FPS readings. Just something I tried and played with and seemed to work. Sorry I don't have any FX Dreamline tune information, but just noticed your chrony and thought I'd share my experience.

 

[bcworkman1983]

I'm coming to the party late, but I noticed that you have the FX chrony. Do you shoot for groups with the chrony attached? I asked because I did at first, and noticed that if my chrony was attached, my groups would open, I think it's a harmonic thing with longer barrels. I don't own an FX rifle, but I have the FX chrony and it was attached to my Edgun R3M long shooting 50 yards. If I took my chrony off to shoot groups, the groups tightened up. Yes, I know, the chrony should be attached so that you can get your tune correct, but I found that adding weight to my barrel, and the fact that it's not secured (rubber bands...) may cause accuracy issues. So, now I just take some shots with the chrony to get my FPS, then remove it and shoot for groups. Also, you can try to experiment putting the chrony on a small tripod under the gun and pointing the chrony towards the pellet path and see if you can get consistent FPS readings. Just something I tried and played with and seemed to work. Sorry I don't have any FX Dreamline tune information, but just noticed your chrony and thought I'd share my experience.

I actually was thinking the same thing, another thing I was thinking about is the barrel band having a harmonic affect on the rifle. 

Back to the other idea, I was shooting with the chrony on, and off. The last shots pictured earlier in the post was with the chrony off the rifle.

 

[hitech]

Good to know. I wish I had some value to add to your dilemma, but I can't think of anything. Good luck if you figure it out, maybe someone here who owns the same gun will be able to help you sort out the issue.

 

[Rj]

I'm thinking it will shape up for you some with a clean liner and no chronograph. I've read 100 slugs on some liners and accuracy will fall apart until cleaned again. 

 

[Rj]

Lube can make a difference also. It has helped with fouling on my impact. You are not shooting for groups with that chronograph dangling off your barrel are you?

Can you recommend a lube that you have had good luck with ?

PB blaster silicone has been working very well for me.

 

[bcworkman1983]

I'm thinking it will shape up for you some with a clean liner and no chronograph. I've read 100 slugs on some liners and accuracy will fall apart until cleaned again.

That's crazy I think, but now that its clean I do think the accuracy should be better. By the time I figure it out I'm going to be out of slugs, and there wont be anymore to purchase. lol

I should just shoot JSB Hades like everyone else, but Hades are snake oil.... 

 

[Rj]

I dont think they are snake oil. A lot of people have excellent results with them.

Check youtube, jsb hades shooter 1721.

 

[bcworkman1983]

Okay gang,

So per the last posts, I cleaned my barrel and not only was it filthy, but there was a fair bit of lead shavings in the cleaning patch also. After I did that my groups with the Hades got WAY worse!

So I finally put away the Hades because I just cant get them to shoot good enough in my rifle, and I picked up the Predator Polymags. With a clean barrel they would shoot 2 rounds through the same hole at 50 yards, but the third and fourth shot would shift to the left or right, opening up the grouping considerably. This was a bummer because I really wanted to shoot the Polymags. 

So I ran another patch down the barrel and same thing. Lead shavings and a bit of black. I have shot about 300 rounds through my Air Arms S410, and I finally cleaned the barrel over the weekend and the barrel was less dirty after several hundred rounds (with no lead shavings) than this STX barrel after 20 rounds, no joke.

So again I switched and started shooting the JSB Exact King Heavy 33.95gr. and they were shooting much better. 

This was my accuracy test and group test at 50 yards

While this was looking promising, its still not shooting as good as I want it to, BUT it was looking good so i moved the target to 70 yards and shot another 10 shot group. This was the result.

My goal is to be shooting an MOA at any distance between 10-100 yards. 

I haven't had a chance to shoot at 100 yet, but I will be doing that next session. I was hoping for a more appropriate hunting pellet to shoot this good out to 100 yards. Although I suppose there isn't anything wrong with plain ol' dome head pellets. However, a hunting pellet is only as good as its ability to fly accurately, and I'm not hunting with anything unless its shooting with high degree of accuracy.

-Brandon