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Best pellets for QB78?

Discussion in 'Anything Airgun Related' started by Frenchie, Nov 26, 2008.

  1. Frenchie

    Frenchie Engaging Member

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    Location:
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    I know that this one is very much a question of personal taste but I am led to believe that some air rifles prefer certain types of pellets. Does anyone know what pellet a SMK QB78 "prefers" please. I have just tuned mine which is now kicking out 11.6 FPE consistently. The gun is used mainly for vermin shooting, particularly Pigeon and Rabbits. Any thoughts without starting a full blown argument on the merrits of different pellets please?
     
  2. dickyd

    dickyd Engaging Member

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    Location:
    bridgend,s wales
    have always used wasps,or any other cheap make,don`t believe in spending more money than need to have fun with a gun:):)
     
  3. steve410

    steve410 Big Poster

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  4. Frenchie

    Frenchie Engaging Member

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    Hi Steve, I read that thread but it does not answer my question exactly. While it is a very comprehensive post and quite correct we still have to accept that different guns SOMETIMES seem to work better with one particular type of pellet and this is what I am asking. Does anyone that has used an SMK QB78 fine that they tend to prefer one particular type of pellet and if so what type suits them best.
    Even so, thanks for taking the time to read the original question and for replying to it.
     
  5. steve410

    steve410 Big Poster

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    That is a hard one to answer,I have had 3 air arms 410's and although the barrels are all made by the same supplier they all liked different pellets.I found that it was just a case of trying different makes and seeing what groups the best.All I can say is dont buy cheap crappy pellets like Spitfires and stick to the domed diablo shape :)
     
  6. andyhawkx3

    andyhawkx3 Major Poster

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    Try bisley magnums :up::D
     
  7. DKOwen

    DKOwen Member

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    I own and use several QB78s in both calibers. While mostly in .177, still some in .22. I've shot many hundreds of pest birds on various farms with a couple of them (actually one is a QB79).

    Generally, they shoot very well when a few things are right. The bore has to be fairly clean, many from the factory are not. I pull the barrels and have a go at them with JB if necessary. Also check the leade, gas port and crown. I've successfully used a strip of fine emery paper taped to a narrow bamboo skewer to remove burrs from the breech end. You can check by chambering a pellet, then pushing it back out with a cleaning rod and looking for marks on the lead. I've only had one crown bad, that from an obvious accident before I got it. Easy to fix.

    Some barrels are just plain bad. Sometimes sloppy in the bore location, loose right at the muzzle and some had problems with sight holes being too deep. I have one barrel 'beyond hope'.

    Once that has all been sorted out, the guns seem to favor JSBs (as most seem to), usually shooting them better than all others. Being very soft, they seem to deal with bore imperfections better I think. However, a couple of them (most notibly a .22 I'm working with right now) shoot much tighter with the much harder Crosman Premeres. I don't shoot other pointed Crosmans, but the now discontinued WCs don't do much better than JSBs and FTS in this gun.

    Understand, this gun does half inch groups with CPs, closer to two inches with JSBs.

    They are not target guns by any measure, but can do pretty good in the field. I don't hunt with them until I can hit a 3/4 round sticker 5/5 times at 25 yards more often than not. I don't mean 3/4 inch groups, I mean put up the spot, back off and put every one of the next five into that sticker (just like you'd have to do with game). Most any otherwise good QB seems able to do that with several pellets, but thus far the list has always been led by JSB (mostly) and CP (otherwise).

    Good luck.

    Doug Owen
     
  8. Frenchie

    Frenchie Engaging Member

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    Thanks for that Doug. I have just done a full tune up using the tuning kit from T.R.Robbs, including the trigger tuning kit. I have also done the crown and just about everything else practically possible. I have a set of Tasco 3-9 X 50 Illuminated scopes fitted and can (Usually) shoot a 1 inch group of 5 at 25 yards. I am currently using a tin of RWS Superdome (14.5 gr) pellets which I am quite happy with but was just wondering if there were any other pellets out there that could improve my shooting with this gun, maybe even a different weight of pellet. Out of interest, I have bought and tuned this gun with the intention of using it for Pigeon and Rabbit as well as other vermin.
    Thanks for the input Doug, your info is very interesting!
     
  9. DKOwen

    DKOwen Member

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    Yer welcome....

    Yer welcome, Frenchie, hope it helps.

    I've never had much luck with Superdomes, something else always seems to shoot better for me I guess. Then again, we Yanks look at that stuff differently, I guess. I've got maybe a dozen tins of both .177 and .22 around to try in various guns. Less so in .20 and .25, and only a couple in 9mm.

    Of course we also tend to go off the deep end and have way more guns than we can shoot to try them in.

    I've shot a fair number of pigeons with both cals from 78s and 79s. I'm coming to the conclusion that the smaller caliber is more successful, even at a lower energy. Maybe we just grow 'em tough, but the wing feathers are basically armor and the heads seem to move too fast to hit well. I'm reduced to looking for ultimate accuracy to get a solid chest shot in past the wings, and for that .177 seems to have more than enough energy.

    BTW, since you good folks don't shoot many hundreds of rounds the way we do, I would think it takes you a long time to shoot a relatively crude gun like the QB in. I would seriously consider pulling the barrel and getting after it with the JB paste if your groups don't tighten up more and basically become round. Pay attention to flyers, if you didn't do it, somethng in the gun did, follow that lead. And don't be bashful about mucking about with the barrel band, sometimes it makes a huge difference.

    Good luck. BTW, you should also consider bulk conversion, it's cheap on that gun (adapter is $25), easy to reverse, and it really cuts your shooting costs down to size. A dollar's worth of bulk CO2 fills my QB78 over a dozen times. Say half a dozen shots for a penny. Makes my gas costs about a tenth of the lead costs.

    Good shooting.

    Doug Owen
     
  10. airgunengineer

    airgunengineer Member

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    Location:
    West Sussex and Costa Blanca Spain 50/50
    I have a .22 QB78 that I have converted to PCP. It gives 15ft/lb which is legal here in Spain and it very much likes Gamo TS18 heavyweight long range pellets. These have now been replaced by the new TS20 that are 20 grains instead of 18 and I am looking forward to trying some. When the wind allows (which is not very often on a mountain by the sea) I can get tight almost one hole groups at 30 metres.
     

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