FX Fx Dynamic express 700

Dude I got a 700mm 357 dynamic and I just can't get it to group well. I have the hybrids, zan112 and 93 grain , I guess I have to reconsider the heavies. I heard single loads of griffin boat tail 114 ish soar. Got it for coyotes and deer but definitely not enough for deer imo. That up north airgunner guy is a ***** and I am done with fx. My agt Vulcan 30 is a ammo picky albeit tack driver with no loss of zero. But this is my dream gun man so I am working on it. Got tungsten power kit in it (I can't tell a difference lol). Going to get back to the heavy after I try hybrids 1 last time as I heard it shoots them lights out? Sorry for ranting but you are dealing with same thing almost. Keep me posted sir and I will do the same I'm going to range up right now I'll get back to you on the heavy z
Have yet to take it out since putting in the new hammer. With the factory hammer I would normally have about a one shot outlier per magazine but kept consistently within 1 inch shooting from a bench at 50 yds, it gets pretty gusty wind-wise where I shoot so that could be a combination of me and the wind. I noticed with the hybrids it was much, much worse.
 
I have a dynamic express 700 mm .30 cal. I would say it is a great rifle. I’ve shot it probably a couple thousand times, and it is very accurate with slugs. I’ve shot Competition with it in nrl22. I have a higher power tune on it with a heavier hammer weight.
the only downside I’ve noticed is after a thousand or so shots the one oring in the valve gets worn and will develop a slow leak and need to be changed.
 
I have a dynamic express 700 mm .30 cal. I would say it is a great rifle. I’ve shot it probably a couple thousand times, and it is very accurate with slugs. I’ve shot Competition with it in nrl22. I have a higher power tune on it with a heavier hammer weight.
the only downside I’ve noticed is after a thousand or so shots the one oring in the valve gets worn and will develop a slow leak and need to be changed.
What slugs do you use? I have the dynamic express .30 in 600mm ... I concur its a great rifle.
 
Have yet to take it out since putting in the new hammer. With the factory hammer I would normally have about a one shot outlier per magazine but kept consistently within 1 inch shooting from a bench at 50 yds, it gets pretty gusty wind-wise where I shoot so that could be a combination of me and the wind. I noticed with the hybrids it was much, much worse.
Dude 😎 I may have cracked code. One guy said lights out accuracy with the 115 Griffin hpbt low density core slugs. I ordered 2 boxes and it's a 1 moa all day at 50. Downside is I have to use single shot tray( they are a learning curve to load but I am sticking with it) for ethical hunting and actually creating a dope card for it. I'm always forgetting how finicky airguns are with ammo and you are right about hybrid (trash can) give them a shot I'm curious if that dude first, then me, then you? We have our winner and I am growing fond of single loads because of the dependable accuracy and they buck the wind like a heavy boat tail should! High 20 mph winds and no hold on the targets!! Dude we need to test more I have gone through 150 single loads and yet to disappoint
 
Dude 😎 I may have cracked code. One guy said lights out accuracy with the 115 Griffin hpbt low density core slugs. I ordered 2 boxes and it's a 1 moa all day at 50. Downside is I have to use single shot tray( they are a learning curve to load but I am sticking with it) for ethical hunting and actually creating a dope card for it. I'm always forgetting how finicky airguns are with ammo and you are right about hybrid (trash can) give them a shot I'm curious if that dude first, then me, then you? We have our winner and I am growing fond of single loads because of the dependable accuracy and they buck the wind like a heavy boat tail should! High 20 mph winds and no hold on the targets!! Dude we need to test more I have gone through 150 single loads and yet to disappoint
Oh and new hammer and springs are definitely helping push the heavy boat tail ammo. Plus a massive hollow point ( can't wait to drop a dog) coyotes lol