Diana Reduce diana 460 power to reduce hold sensitivity.

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Maninder-singh-ajimal said:
Hello all,

I just joined the forum although I have been a long time follower.

My problem is bit unique. I want to reduce hold sensitivity to make my diana 460 easier to shoot.
Is it possible to replace the spring with another to, maybe reduce the power a bit to achieve a much smoother operation?
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Yes. John in PA does excellent work at good rates.

Use search for "John in PA"

He has done several rifles for me, always excellent work, always excellent price.
 
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OldSpook said:
Yes. John in PA does excellent work at good rates.

Use search for "John in PA"

He has done several rifles for me, always excellent work, always excellent price.
Click to expand...
I would have loved to contact the said person but I am from a different country, India. So if anyone can suggest any ideas I’d like to diy.
 
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Maninder-singh-ajimal said:
Hello all,

I just joined the forum although I have been a long time follower.

My problem is bit unique. I want to reduce hold sensitivity to make my diana 460 easier to shoot.
Is it possible to replace the spring with another to, maybe reduce the power a bit to achieve a much smoother operation?
Click to expand...
One option is to heat up and collapse a few coils of the spring.
Go slow. Let the spring settle and break in. Chrono it to confirm before collaping more coils.
.
If you go too far, put in a washer to bring the power back up.


Next option is to cut the spring.


same deal go slow ...don't cut too many coils at once.

Order a back up spring from Diana just in case.
--

Before you do all that, are you shooting the gun off a rest? If your springer is not grouping, you might want to rule out other issues before modifying or putting in a softer spring.


1. check all your screws
2. check your scope or shoot open sight
3. try different pellets
4. tissue test and chrono your gun
5. check your crown and leade
5. modify your shooting position, trigger control and/or rest.

Your "hold sensitivity" could be one or a combination of these. Rule them out before you start making changes.

How do I know? I've won the nick name "the king of change" going on ten years now. I mainly shoot springers and 90% of the time, when a gun is "hold sensitive" it's me...it's not the gun, it's not the scope, it's not the pellet...it's me=Inconsistent hold, inconsistent trigger control
 
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JP806TX said:
One option is to heat up and collapse a few coils of the spring.
Go slow. Let the spring settle and break in. Chrono it to confirm before collaping more coils.
.
If you go too far, put in a washer to bring the power back up.


Next option is to cut the spring.


same deal go slow ...don't cut too many coils at once.

Order a back up spring from Diana just in case.
--

Before you do all that, are you shooting the gun off a rest? If your springer is not grouping, you might want to rule out other issues before modifying or putting in a softer spring.


1. check all your screws
2. check your scope or shoot open sight
3. try different pellets
4. tissue test and chrono your gun
5. check your crown and leade
5. modify your shooting position, trigger control and/or rest.
Click to expand...
My initial idea was to install a diana 34 spring in my 460. The rifle is very hold sensitive. I want to reduce power a bit, the idea behind was it that I want to reduce the sensitivity and shoot it off rest.
 
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Have you compared the specifications of the spring you wish to purchase against the spring currently in your 460?

Total length shouldn't be discarded, but focus on coil count and wire diameter. I believe the 460 spring has a diameter of .128" (3.25mm) and the 34 spring has a diameter of .125" (3.17mm), but I have forgotten the coil count of each. Since the wire diameter is very similar, if the coil count happens to be the same you may have very little difference in the firing cycle and power output. Having access to tools would then be essential to shorten the extra spring a coil or two if needed.

I have a 460 in .177/4.5mm and have experimented with a sub12ftlb spring. The rifle behaved very calm, but eventually I went back to full power. Mostly I shoot the 460 from a table, so reduced power wasn't needed. I then put that same spring in a Diana 34 and it made similar power (11 to 11.5ftlbs)
 
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