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DST arm/kickoff contact point

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01 July 2023, 01:51
brnomauser
DST arm/kickoff contact point
Making a kickoff piece for an aftermarket DST on a 98. Making a double lobed one ala Roy Dunlop so as to optimise both triggers. What is the ideal contact point on the rear trigger arm to contact the lobe on the kickoff piece? I know it’s juggling the clearance and leverage for the ideal amount of arm momentum to trip the sear and I can see some kick offs are long and some are short. I have no original kick off to compare.


01 July 2023, 03:23
dpcd
Your sear arm/leg is too short; make it longer, like this one.
01 July 2023, 06:38
dpcd
1/4 to 1/3rd of the way from the front of the kick off trigger; the rear one.
My picture has the triggers reversed.
01 July 2023, 08:27
brnomauser
quote:
Originally posted by dpcd:
1/4 to 1/3rd of the way from the front of the kick off trigger; the rear one.
My picture has the triggers reversed.

Somewhere around here?
01 July 2023, 18:52
butchloc
bitchy things to fit but oh so nice to have
01 July 2023, 19:02
dpcd
Yes, it is not critical. The rear trigger just springs up and hits the sear arm/leg.
I disagree about DSTs; they are terrible in real hunting situations; there is no need for a half ounce trigger, and if you don't set it, you get a 12 pound one.
I missed a deer, and spined a caribou, using them, on a Sharps and a flint lock.
No, they are useless in reality. A good 3 pound single trigger is much better idea.
They do look cool.
02 July 2023, 00:45
brnomauser
Ok thanks
quote:
Originally posted by dpcd:
if you don't set it, you get a 12 pound one.
well the idea of the double lobes is so you can tune the unset pull to be much better than it would otherwise be with a regular single lob kicker
02 July 2023, 03:39
dpcd
I don't know what double lobes or a lob are, but when unset, you have a direct pull trigger; usually not all that light or crisp.
02 July 2023, 04:47
brnomauser
quote:
Originally posted by dpcd:
I don't know what double lobes or a lob are, but when unset, you have a direct pull trigger; usually not all that light or crisp.



This is what I mean by a lobe. The idea is you tune one to give a reliable kickoff from the rear set trigger, but the other can be tuned separately for the best front trigger unset pull. With the single lobe the unset pull is compromised because it has to be in such a place with clearance to allow the set trigger to release the sear. Using this method I see no reason why the unset pull can’t be as good as any single standard Mauser trigger can be, possibly even a little better as the double levers might end up with a shade more advantage than a single. Obviously it’ll never be as good as a Timney etc., but not as bad as regular DST installs.

Not my idea, it’s all in Roy Dunlap’s book
02 July 2023, 06:53
dpcd
Ok, anyway, my opinion is that DSTs do not belong on hunting rifles, except as a curiosity/nostalgia for a pre war German rifle.
No advantage over a good trigger, and several disadvantages. And I have fitted many and used them in the field.