AJ Peacock
Well-Known Member
I tried to punch the pin out of my ancient .243 Rem 700 today, but it didn't budge. I need new punches! OK, MidwayUSA here I come!
AJ
AJ
Replace ancient 700 spring?
- Thread starter AJ Peacock
- Start date
AJ Peacock
Well-Known Member
I have the second tool and don't need the first one.
My issue is removing the pin that holds the firing pin to the back piece, that bugger is tight on my 243, I need better punches!
AJ
AJ Peacock
Well-Known Member
Update, I've done 3 range visits with the 7RM since replacing the firing pin spring.
1) Accuracy is still the same (sub 1" with every group).
2) Velocity spread is actually better, highest SD was 3.01fps (previous was between 6-7. So probably not statistically relevant, but no 'bad results'.
AJ
1) Accuracy is still the same (sub 1" with every group).
2) Velocity spread is actually better, highest SD was 3.01fps (previous was between 6-7. So probably not statistically relevant, but no 'bad results'.
AJ
sable tireur
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Confidence in your rifle and ammunition is paramount!
HSmithTX
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Springs don't degrade from staying compressed, it is cycles that degrade springs. Loaded magazines, cocked bolts and things like that don't hurt the spring if the spring is properly designed and made and installed correctly. A spring in a bind or overload will fail quickly regardless of the quality. With good springs used properly the life can be astronomically higher than you would think. When replacing a spring it will either fail pretty quickly in use or last a really long time, mostly due to metallurgy and heat treat variation. Another thing, don't just assume that the spring is degraded because it is shorter than when new. Every spring correctly made and installed will take a set in the first part of it's life, static and peak pressure also change during this part of a springs life by a little bit. After it has taken its set it will be very consistent for a long time. To KNOW if a firing pin or recoil or magazine spring needs to be replaced you need to check it at the installed length for static pressure and cycle it for peak pressure. If you want to replace them as maintenance because they don't cost a lot and it gives you peace of mind by all means swap them out, it doesn't take long or break the bank.
AJ Peacock
Well-Known Member
I suppose that one firing pin spring for every 2 barrels and 60 years on a rifle is a good maintenance schedule
AJ
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You can simply leave the action open on a new semi auto shotgun for a month or two and the recoil spring will be a good bit shorter than a new one. Enough so that when I ran a youth sporting clays team I heavily encouraged the parents to store the gun with the action open. Failure to Feed and bolt timing issues would occur in significantly less time when the actions were stored open. These guns were running about 10,000 rounds per year. I know springs will take a set quickly but with enough time compressed there will be less energy in that spring.
When I shot a lot, 50,000 rounds a year or more I would have to change my clays guns firing pins, springs, and hammer springs about every 8-9 months when it would start in with light primer strikes. This was aided somewhat by eroded firing pins from piercing certain primers. I found aftermarket springs and firing pins that were much higher quality "plus more expensive of course and put those in it. I don't shoot quite as much these days but I haven't changed springs or pins in 7-8 years now.
When I shot a lot, 50,000 rounds a year or more I would have to change my clays guns firing pins, springs, and hammer springs about every 8-9 months when it would start in with light primer strikes. This was aided somewhat by eroded firing pins from piercing certain primers. I found aftermarket springs and firing pins that were much higher quality "plus more expensive of course and put those in it. I don't shoot quite as much these days but I haven't changed springs or pins in 7-8 years now.
