Tubbs Speedlock firing pin ?

[Shrek]

I keep hearing how lightweight firing pins are bad for accuracy. I had thought about a Tubbs Speedlock for a mountain rifle. My thought is that the faster lock time might be beneficial in a very light rifle being shot from whatever improved position or offhand. Has anyone here had any positive results with the Speedlock pins ?

 

[xswanted]

I keep hearing how lightweight firing pins are bad for accuracy. I had thought about a Tubbs Speedlock for a mountain rifle. My thought is that the faster lock time might be beneficial in a very light rifle being shot from whatever improved position or offhand. Has anyone here had any positive results with the Speedlock pins ?

I use them in a few rifles and believe they improve locktime enough to make a difference. Especially in off hand shooting.

They always seem to make a trigger a tad crisper as well.

 

[butchlambert]

I use them in a few rifles and believe they improve locktime enough to make a difference. Especially in off hand shooting.

They always seem to make a trigger a tad crisper as well.

I'll disagree, but do not need to get into a fuss about it.

 

[xswanted]

I'll disagree, but do not need to get into a fuss about it.

Always different experiences for sure.

One thing I didn’t mention in my first post is I do believe extreme cold weather they’re less likely to have issues. Over the years I have had stock Remingtons not go off in the cold but never a lightweight one.

Could certainly be coincidence but in both my coyote rifles I have these things just to be safe.

makes me sleep better I suppose.

 

[ronemus]

I put one in a Mauser '98 and it made a world of difference. The original weighed easily 4x what the Speedlock did, and with the stronger spring the lock time was a lot less. I am happy with the accuracy (~1/2 MOA), and it's certainly no worse than with the factory pin.

In a rifle with a lighter factory pin it won't make such a difference. Bottom line, the answer is that it depends on a variety of factors. My rifle is shot from position(s) so lock time is critical; for a bench gun, not so much.

 

[GenePoole]

About 5 years ago now, I had carpal tunnel surgery. Before they cut on me, they did a nerve conduction test on me. I don't remember the numbers, but suffice it to say that signals through nerves travel really slow. When your brain says "pull the trigger" it is a very long time (relatively speaking) before the signal makes it through the nerves to your finger which twitches and engages the trigger. To think that the few scant milliseconds that Mr. Tubb says his pins will save you are in the same order of magnitude as the brain-to-finger motor neuron times is just ludicrous. Maybe there is some other benefit--even placebo effect--but I'm not buying David's sales pitch.

 

[ronemus]

I can say from personal experience that saving 10 ms or so does make a difference, especially offhand. I have seen the effect from a Speedlock in a Mauser'98 and from a Giessele in an AR; in both cases the reduction in lock time from >10 ms to <3ms was both noticeable and worth points. My measured reaction time is ~120 ms, but that numerical comparison doesn't tell the whole story.

 

[pfiori]

For a frame of reference only, I am not advocating for or against anything here. The standing position aiming point speed across the face of the target of a good international level shooter on the 50 meter ISSF target (10.4mm 10 ring and 8mm scoring rings) is in the 60 millimeters per second range. This speed will move your aiming point 15mm (the equivalent of a centered 10 to a wide 9) in the 250 milliseconds that is usually allocated to trigger operation and lock time. Reducing this by 10 milliseconds reduces the distance traversed by 0.6 millimeters.

 

[butchlambert]

For a frame of reference only, I am not advocating for or against anything here. The standing position aiming point speed across the face of the target of a good international level shooter on the 50 meter ISSF target (10.4mm 10 ring and 8mm scoring rings) is in the 60 millimeters per second range. This speed will move your aiming point 15mm (the equivalent of a centered 10 to a wide 9) in the 250 milliseconds that is usually allocated to trigger operation and lock time. Reducing this by 10 milliseconds reduces the distance traversed by 0.6 millimeters.

I believe that is .004". Basically, if it helps you between the ears, it's good.

 

[paperpuncher]

I would think that any gains from improved locktime is more than offset by the inaccuracy caused by inconsistent ignition

 

[Dusty Stevens]

I would think that any gains from improved locktime is more than offset by the inaccuracy caused by inconsistent ignition

By about 7x or more

 

[Fast14riot]

I believe that is .004". Basically, if it helps you between the ears, it's good.

Its .024"

 

[284winner]

Bought the John Pierce "Piercision" model years ago when he designed his. Not to bad mouth John's products because they are good products but it never changed anything for me. If they do help some, fantastic. Just wasn't the case for me.

 

[Packrat1947]

Of course when the heavy steel firing pin comes to a dead stop, it puts quite a jolt into the rifle - while the bullet is still in the bbl. Less jolt is always better.

Pulling the trigger on a stock Mauser 98 is always enlightening.

 

[Alex Wheeler]

You cant avoid some ignition vibrations, but mass=consistency. I do not know of anyone that works on ignition for accuracy that prefers a light firing pin.

 

[1shot]

I put one in a honest 1/4 moa rifle and it started shooting 12 gauge patterns. (Open choked at that) Re-installed the factory pin, small groups returned.
I'll let you draw your own conclusions.

Lloyd

 

[dolek]

12 Gauge patterns ? Something else was wrong.

 

[1shot]

It was a metaphor. To be absolutely correct, the rifle went from .25 moa to not being able to get two shots touching out of a group. No other changes were made other than the firing pin. 14 years later, the rifle still performs quite well with the stock FP.

Lloyd

 

[Dusty Stevens]

It was a metaphor. To be absolutely correct, the rifle went from .25 moa to not being able to get two shots touching out of a group. No other changes were made other than the firing pin. 14 years later, the rifle still performs quite well with the stock FP.

Lloyd

This happens every time. I have fixed a bunch that way.

 

[carlsbad]

I've talked 2 guys out of them recently.