I've been looking, and finally came across a great substitute. It's a Flat wire Chrome-Silicon spring. These are ISMI sold as recoil springs for the Glock 19. I grabbed a 22lb, which is 31 coils. I then cut it to 21 coils for correct preload. These are a PERFECT fit for Model 10/110 adjustable firing pin. Much less play than the stock spring, and compresses straight down. (Doesn't bow out like the stock spring.) I'm going to see how this one does & maybe try some other spring rates.
Deleted
Same.
Rated at 22 lbs at what compression height?
"As long as there's lead in the air....there's still hope.."
Originally Posted by sharpshooter
I don’t concern myself. What many think of in terms of a spring’s “weight” as relating to firearms, is actually LOAD. The LOAD is the amount of force, typically shown as pounds, it takes to compress the spring 1”. When we play the game of clipping coils of stock springs, the LOAD is not changing, rather the spring rate is. Take two springs of the same diam. wire & coils spaced the same . One spring is 10 coils the other is 15 coils. In a given length system with equal preload, the 10 coil spring will feel lighter. However, if we were to further preload the 10 coil spring with spacers, it will feel as heavy as the 15 coil spring. I can type out all the math as to why this is but quite frankly, it’s just BORING to me....and there are FAR too many web pages dedicated to explaining it all! (Interwebs: it ain’t JUST for the Face Page & PORN!) I understand spring load/rate at least as well as the average bear...maybe a bit better. I know what works & how to choose. This is how I’ve picked specific springs for my Accutrigger setups. Striker springs are a balancing act though. Spring load/rate must be chosen as to not impart unneeded weight on the trigger release, yet it must have enough energy to ignite the primer.
Dave, I am very interested in your findings. I too have found alternative springs. Sending you a message.
The Dunning-Kruger effect is alive and well.
I’m with “sharpshooter” on this one.
As if he needs my support!
That’s fine, you’re allowed to believe someone devoid of any evidence simply by their word. That’s your right. I like researching & thinking for myself. Uh oh...I see you deleted your first post.
A weak primer strike causes NO FIRE or a HANG FIRE, which is a delay. But once it lights off, it lights off. So a person can “claim” the mysterious “slow burn” theory...but that’s all it is. A theory. No one, including Fred, can produce any evidence proving this. And “because I say so” isn’t evidence. Do a search & you’ll see the debate.
What ever you say Dave
I see what you did there. Well, imitation is a form of flattery. FOLLOWING suits some people.
Volume is no substitute for well thought out ideas or concepts.
_.
Fred mentioned the term "cold fire". I believe it's what I know as "cold flash". We did tests
using a 38 special model 10 Smith & Wesson, heavy barrel with a Bomar rib, using 148 grain
wad cutters. and 3.1 grains of Bullseye. Fire arm was mounted in a ransom rest. The test
was about using hammer springs only ounces apart to look for any deviations in grouping
and velocities. Back then, we only had the resources of an Ohler 33.....We tried light springs
to find the boundary of consistent ignition then worked our way up. As we worked up in spring
weight, groups opened and closed, and velocities increased. These were my findings and used
it to win several PP match's before moving on to IPSC.
I would think using a Lab Radar, A dedicated load, and 10 springs about a pound apart would
suffice for a test.
Keeping my bad Karma intact since 1952
I like that idea Fuj. Unfortunately I left my Doppler Chrono in my OTHER life, LOL!
Im just doing things the old fashioned way. I’m gonna test things, use my experience & see what shooting groups tell me. Remember, this whole thing is just ME sharing what I’m doing & how it’s working for me. I’m not telling anyone they should imitate. I always tell people to educate themselves & make their own informed decision.
Dave, don't let pride get in the way of credibility. I am all for what you are working on but you have stretched yourself very thin. Jim Borden, David Tubbs, Chad Dixon(long Rifles), German Salazar and a slew of other famous gunsmith/action maker/builders and competitors will tell you the same thing Fred is telling you. He is not trying to belittle you. He is keeping facts on the table. I have had pm's and forum messages from some of the top guys in the shooting industry in response to questions about this very topic. Consistent and correct amount of energy at primer impact are important for accuracy. If your happy with just hitting the target, maybe not so much. I am out of pocket at the moment but I will dig for some of the better responses if you would like to see them.
Again, I am all for experimentation and new ideas but there are absolutes that must be adhered to.
Thanks for the experienced post FUJ
The Dunning-Kruger effect is alive and well.
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