I want to set my M3 up with the slug kit, but want to be able to shoot pellets as well. It's pretty easy to swap out the lighter valve adjuster spring, pin probe and liner (if necessary) to go between slugs and pellets. The heavier hammer-not so much. My question is, if I have Ken Hicks install the slug power kit, can I leave the heavier hammer in and still shoot pellets?
Impact M3 ?-Can you use a heavier hammer with pellets
- Thread starter cmatera
- Start date
Keith over on 68 whiskey just did a video showing this. He shot slugs and pellets from his M3 at 175 yards by simply changing the tune while shooting. No video edits he kept the camera on and shot each group without extra shots to settle the regs.
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You can with the right tune and if don’t want to shoot light pellets at 600FPS. Only thing that won’t work well is the pin probe as it will not seat pellets properly. Maybe swap to a huma high flow tube probe. Pin probes are a pain anyways and only adds a few FPS, they need to be adjusted to each ammo’s seating depth. Different pellets with skirt depth, flat, cup and dish base all need the pin probe adjusted accordingly so they seat correctly as supposed the tube probe will seat all of them the same for better accuracy. In fact it is far more important to seat slug properly than pellets so they don’t engage the rifling off center, with short/light slugs pin probe might be a problem as it won’t push the slugs in nice and square like the tube probe.
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I added a 1.25mm brass shim for a bit more hammer weight as well as a shim. If memory serves I was trying this in the .22 caliber. Like qball said, once you have the hammer spring shim and lighter valve spring installed it is hard to get down into the 600s with lighter pellets. But the easy fix was just to change the valve spring back to the heavier one and that will make it all good again. Being able to change that valve spring out without tearing the whole gun apart is a huge plus, for tuning options, on my early Impact-X.
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Keith has just the slug kit hammer weights installed. Does it with 30cal. I have mine installed, I will see how well it does this weekend.
https://youtu.be/nHWcqLrPJd4
https://youtu.be/nHWcqLrPJd4
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Thanks guys. That is what I want to do. Leave the hard stuff inside installed. I don't mind changing the easy stuff like the valve spring, probe, and even barrel liner going between the two, and I rarely shoot anywhere near 600 fps with lighter pellets, because I have like 7 PCP's, so I can just pick up a different gun.
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I only use one of the hammer weights installed. I rarely push my reg beyond 140-150bar, so don't have a huge need to run the lighter valve spring..and I just curse a lot when I try to get pin probes dialed in.
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I believe the FX plan for the M3 is to just rotate the barrel over to the pellet port side labeled "P" for pellets and continue on with maybe a few notches down on the power wheel.
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