Theoben Rapid more accurate when single loaded?

[Ka-Boom!]

You dont need 40ftlb so throw that out of the window, trust me been there done it. 32-34ftlb with a 21.3 bis mag will give you the best groups out at 70yds with serous knock down power, any more and accuracy will suffer unless you move over to bullit heads but then you have to get the probe sorted out, bullits are also expensive to buy and for what? what are you gonna do that a bis mag running at around 830-850 fps aint ...... nothing, shooting out to the max on FAC air 80yds and a 33ftlb rapid with a bis mag still blows a hole through the bunnies bonc so, and a much better air economy and less stress on the rifle.

I don't fancy moving over to bullet heads and really high power as it would ricochet just like my .22LR.
I didn't realise that Baracuda accuracy dropped at 40ft/lb? I once had a Career that spat them at 1018fps average, 50ft/lb, but never did any serious long range accuracy testing.

[stillair1]

A good die batch of pellets helps to. I've aquired a few tins of a particularly good jsb variant that work in mine.

Neil

[verminhunter]

A good die batch of pellets helps to. I've aquired a few tins of a particularly good jsb variant that work in mine.

Neil

Yeah right!
And my name's bill.
Its your barrel neil that needs a good look in.

[Rapidnick]

I don't fancy moving over to bullet heads and really high power as it would ricochet just like my .22LR.
I didn't realise that Baracuda accuracy dropped at 40ft/lb? I once had a Career that spat them at 1018fps average, 50ft/lb, but never did any serious long range accuracy testing.

It is all a question of pellet shape. Diabolo shaped pellets apparently start to tumble above a certain MV. Keeping Baracudas to around 850 ft sec (34 ft lb in .22) seems to optimise accuracy. If you use 30 -or even 40-grain bullet heads you suffer air inefficiency and gain very little in terms of effective killing range. The more I shoot FAC air rifles the more I am convinced that power levels above 35 ft lb in .22 are a complete waste of everything really. Rimfire is the tool of choice if that is where you need to be power-wise.

[verminhunter]

It is all a question of pellet shape. Diabolo shaped pellets apparently start to tumble above a certain MV. Keeping Baracudas to around 850 ft sec (34 ft lb in .22) seems to optimise accuracy. If you use 30 -or even 40-grain bullet heads you suffer air inefficiency and gain very little in terms of effective killing range. The more I shoot FAC air rifles the more I am convinced that power levels above 35 ft lb in .22 are a complete waste of everything really. Rimfire is the tool of choice if that is where you need to be power-wise.

Spoken like a true Spartan (bubble that is)

[stillair1]

Early mags can be drilled carefully with a 0.6mm drill bit to provided extra anchoring points and less spring tension.

Neil

[j rayner]

Been having a spot of bother whith my rapid 177 fac.it will group lead on lead for about half the mag but throws off the other half at random.is it easy to adjust the tension on the mags.i dont wont the old loosen a screw and springs go all over the place sindroam.anny more tips to solve this problem apreciated.JEZ

[stillair1]

There's only one spring inside Jezer. First off to check that it has no more pretension than one turn for a starter. If you are still getting flyers, the back of the mag can be drilled to provide more anchor points and lower spring tension. You will probably need a bit of tension otherwise the inner rotor may not go back to zero as there can be tension applied from the perspex cover. I can do some snaps tomorrow night if required.
I take it you are talking about the 17shot mag rather than the 7 shot version.
ps I would expect it to group better on the second half of the mag if its a tension issue.

[j rayner]

Thanks for that stillair1.it is the 17 shot mag.the fliers occure at anny point of the zeroing.kev g gave me some tips and the groups did get better.i thought i had craked it but i am still getting the odd one 3/4inch flyer.i think there may be some lead been scraped off the pellet either as it leaves the mag into the breech or as it enters the breech ie from the porting.some pics will be great if you can on how to adjust the mag.getting sik of stripping the gun down to no avail.to me an inacurate gun is as good as a chocolate fireguard.ATB JEZ

[Graeme]

The internal wheel that holds the pellets does not align properly with the exit hole on the back of 2 of my mags and regardless of any spring tension adjustment i make ruins the acuracy although it is not every shot in the mag that this happens on.

I have one good mag though

Eddit, You guys might want to check this on yours (each and every pellet per mag)