GTA
PCP - HPA - C02 Gate => Crosman Discovery Forum => : shearload November 15, 2009, 05:47:32 PM
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Bought it for my birthday; in came in late Friday. I pulled a few patches through the bore, put a scope on it, and filled it up. It was already dark, but I fired a clip through it by flashlight in the back yard at 10 yards to get it on the paper. Even at 10 yards, the three-shot groups I used to adjust the scope (a Centerpoint 3X9X40AO) were over an inch ctc. Hmmm. I set it aside until Saturday morning.
At twenty yards, groups were 6 inches and very random using Discovery HPs. Benjamin domes were no better. I tried pellets from four different lots; no change. Off with the shroud and all the baffles; the crown looked fine. I fired two or three ten-shot groups without the shroud or baffles. It's loud without them (no surprise). No improvement. Different scope; no change.
I pulled out the bolt and pushed a pellet through the bore. I had some resistance at first, as the pellet skirt formed to the bore. Then the resistance decreased, and the pellet moved easily for about a foot. Then all resistance vanished until the pellet reached the choked muzzle. I tried again, with the muzzle pointed down. The pellet (another one) virtually fell through the bore for three or four inches just behind the muzzle choke.
I e-mailed Crosman, and hope to hear from them tomorrow. This bugled bore may be normal, but I doubt it.
Has anyone else ever pushed a pellet through their Marauder barrel?
Dale
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Maybe your pellets are clipping the baffles inside barrel. Pull the cap off and take a look.
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Like I said, one of the first things I did was remove the shroud and all the baffles, including the one that friction-fits the muzzle. There was nothing left for the pellets to clip. It didn't make any difference.
Dale
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I had trouble with JSB Exact Jumbo Heavy's having consistent groupsso Iwent back to the CP's and they are shooting on the money. Hmmm Crosman Gun ~ Crosman Pellets, what a great combo for the Marauder.
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I didn't have any .22 CPs, but had two different lots of Benjamin Discovery HPs, which I understand to be the same pellet as the CP HP. Neither worked. I also tried two different lots of Benjamin domes, with poor results. Those and Daisy wadcutters are the only .22 pellets available locally. I figure at least one of them should have grouped; they do okay in my springers.
Dale
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Try Beeman Cromags. They group real well in my Mrod.
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hmm thats wierd, ive heard they are very accurate shooters, i cant help you out but i do want to say, good luck! i hope you figure out the problem