phiz wrote:Get a 6mm rifle cleaning kit at bimart for like $8 it comes with patches precut. Swab the barrel and bucking with rubbing alchohol, and dry it well. Shoot about 100 rounds with the hop up on max, just to break in the rubber. Then adjust the hop up and check groupings. Don't use silicon on a sniper barrel / bucking.
Also, you should get a chrono so you can make sure the FPS is consistent shot to shot. Wrapping the bucking to the barrel with teflon is really important for FPS consistency.
Plus your madbull might just be one of the random defects. Make sure it rolls straight on a flat surface and doesn't have a bend. Go back to your stock barrel if it is better.
At 500+ fps you should be using .36 or heavier. Read about BB weight and fps here:
http://msed.bbbastard.com/
KA-BAR wrote:i am going to go with barrel spacers and the fact that it is not a tight bore......most stock barrles are 6.04, his is a 6.03? to greatly increase your groups at range you will need a 6.01 stainless steel TB. Seagreen makes custom ones or you can buy a after market one. but get a good tight bore, since this is by far your most important upgrade.
3 foam barrel spacers wouldnt hurt either.
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