Faster firing pin

O

Old Timer

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How much is to be gained by a faster firing pin, alum pin with steel tip and stronger spring ??? Is it worth the time and money to install one on a
Rem700 short action ?
 
Old Timer said:
How much is to be gained by a faster firing pin, alum pin with steel tip and stronger spring ??? Is it worth the time and money to install one on a
Rem700 short action ?
Click to expand...

As far as locktime, not much. I've never seen a big enough benefit to go that route personally and have heard they cause more prolems than they are worth. But I'm sure there are those who use them that may have a different perspective on it.
 
If the spring isn't changed then the lock time should decrease with the square root of the effective reduction in moving mass. Remember though that the moving mass is not only the firing pin but part of the spring's mass too.
You might reduce the lock time by 20% if you cut the mass of the firing pin in half. On a Rem 700 SA that would be a drop from about 5 milliseonds to 4 milliseconds. Worth doing? I've always chosen to put the money into a good trigger.
 
weight change

When I change the firing pin I've also changed the shroud on the back of the bolt at the same time. This saves two onces and is the biggest impact I've seen. The firing pin change didn't affect my metallic silhouette scores which weren't that great to begin with.

Shaving 1-2 msec off the lock time seems over rated to me.
 
Reduce the OEM F/Pin weight by 30% & time the F/Pin to reduce lock time by 1/3 with the OEM 28Lb spring & you won't need any Aluminum &/or Titanium to pierce primers.

The F/Pin shroud is basically-cosmetic.
 
One thing to bear in mind with lock times - it's best for your head if all your rifles are running at about the same speed.

Years ago when I shot Aussie target rifle (Palma, sort of), I had one rifle built on the Parker Hale Mauser action & one on the local Sportco/Omark. The Mauser, with all its heavy firing pin & cocking piece had the lock time of a barn door in a light breeze compared with the Sportco which was similar to the Remington 700 in design. I could snap shoot off a shot with the latter & get a bullseye. If I tried the same with the Mauser, I would be off aim before the shot broke.

I'm too old now to feel guilty about sloppy technique in the past, but I think the lesson is valid whatever your shooting discipline is.
 
weight savings

The 2 ounces was very helpful in making weight for the class the rifle was designed for - nothing else.
 
2 oz

By changing the firing pin and bolt shroud on a Remington 700 with the J-lock. Does that seem surprising... ?

I'm curious, how much weight do you save?
 
Changing Bolt Shrouds

If a old style Remington bolt shroud is exchanged for a Davidson Aluminum shroud the weight saving is about 1.5 oz.

Now this may not seem like much; however on some competition rifles every ounce saved is very important. We use aluminum trigger guards, scope rings and bases. It all adds up fast.

Back to the firing pin................I believe for preformance, the proper weight firing pin spring is very important and plays in part to a great trigger. I also believe the firing pin needs a certain amount of mass or weight. I have no proof, other than it works for me.
 
John S and iceman,
I just weighed a long heavy Remington bolt shroud and it weighs 1.1 oz. Nit picking I guess and it doesn't help lock time. If you have a light firing pin and the necessary heavier spring to make it work, watch your bolt jump.
Butch
 
I've not weighed the "lightweight" vs the factory pins, but the factory is noticeably heavier in my hand.

If you install one, you might have to readjust your trigger as the cocking piece may or may not be machined to the same tolerance as the factory.
 
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