New Barrel follow up

[Keyman62421]

I lost track of the thread that asked me about the increased FPS. I just ran my first strings and on the 25.39 grains I raise my FPS approximately 25 feet per second. It's a new barrel and I'm still playing I did run 34. grain through also and got close to 20 feet per second but like I say it's a new barrel. And I'm still playing in tuning I haven't even sighted it in yet.

 

[Bob_O]

New barrel for what gun?

 

[AirSupply]

Thanks Keyman. Interested to know if you feel you get an accuracy improvement when you get it sorted a bit more. 

 

[Keyman62421]

Impact 25 I replaced the original barrel with the 700 mm I took a couple stacks out of the original moderator and put it on the 700 is still got a little crack to it. It is quarter group @ 50.though.@ 60 and 70 yards shooting the insect balls out of trees. I've shot a couple hundred rounds through it now it seems to be tightening up the groups several pellet on pellet @ 50. By this weekend I'll be shooting at a hundred + yards. I'll try to post some pictures of the groups oh, incidently I remove the barrell securing screw head and put an allen head in that hole and it holds the barrel tight without coming loose , at least so far.

 

[Hynzie]

good stuff KEYMAN keep the info flowing

 

[Keyman62421]

I hope I'm not boring you guys with this amateurish report. But since I'm an amateur that's how my reports are. I ran a 4 and 5 shot string on all seven levels. You can see from the photos I included the group and the power level and a foot per second. All the groups seem to be fair except for one and two in minimum. I settled on three and four because they shot the best groups When I zeroed the scope, I settled on 4.. I haven't had a chance to shoot long-distance yet so I don't know about spiraling my Max and five levels were passable but at a distance we have to find out. You'll notice the zero Target that the right side is 3 and the left side is 4. virtually pellet on pellet these are at 50 yards with about a six to eight mile an hour wind from the right the wind didn't seem to bother the pellet much a

gust would move its

 

[Drumsnguns]

Ah, finally some objective data on how the new barrels work. I'm still trying to decide over the 600 mm upgrade using the existing shroud or the 700 mm. What I'm seeing here is making me lean towards 700 mm.

Thanks for the information!

KP

 

[Keyman62421]

Attn: New revelation! When you get your new barrel/ shroud assy, loosen the shroud 2 or 3 rounds so your barrelnwill seat fully. Then secure barrel seating screw and then snug the shroud.

 

[Keyman62421]

When you get your new 700 mm Barrel you have to get use to extra length you're going to be hard on the door jams and your storm doors and your door on your car and everything you tried to go through with that extra 3in you're not used to