primer cratering

fish_e_o

fish_e_o

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loading for 204, in a rem 700 sps varmint with benchmark and 39gr sbk at low charge weights (20 gr) i was getting cratering without even the primer starting to flatten.

i disregarded it as a tolerance error around the firing pin and judged pressure off of primer flattening and velocity. i now have some really nice loads (25.3gr) that shoot awesome the primer isn't completely flattened but it's mostly flat. the bad news is that the primer still craters and flows back around the pin. i have shot lots of these and rolled a few coyotes with them too, i've never had a primer pierce or any other problems and the gun is very accurate.

should i fix it if it isn't broken?
 
Both of my newer 700's come with this wonderful "feature". The only solution short of bushing the firing pin hole, is to use Rem. 7 1/2 primers. Their cups are harder than the others. Trouble is , they're very hard to find .
 
What data did you use? You were likely getting weird pressures from the 4 grains under minimum load. 24.0 of Benchmark is the starting load for a 40 grain bullet. 25.3 is a near max load. One grain of weight won't matter.
 
sunray said:
What data did you use? You were likely getting weird pressures from the 4 grains under minimum load. 24.0 of Benchmark is the starting load for a 40 grain bullet. 25.3 is a near max load. One grain of weight won't matter.
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the light load was just to test to see if it was from excessive pressure.

what i found out is that remington builds this into their rifles... i guess sloppy tolerances are desirable for some people. i'll never own another and i'm strongly considering going back to remington with all my rifles and telling them to take them back.

they wouldn't do a thing about it to spite numerous calls. i was told that "it wasn't creating a problem" and "it's designed that way". if it was browning/tikka/sako this problem would have been resolved in 10 seconds if it happened at all.

i even told them i buy a lot of guns and shoot a ton and i've never seen this before. they basically told me to take my oversize firing pin hole and well put it somewhere. i would think a guy who bought 36 guns last year is a guy you want to have on your side:mad:

very mad... but rant over... i'll have to fix it myself, this and the horrible trigger.
 
Holy crap don`t "fix" your trigger it will go off and cause all sorts of problems.:p I hear ya on the firing pin problem, iwas a big fan of Rem products but they are getting a little sloppy with the tolerances. I love my old 870 wingmaster and 700 but some of the new stuff hasn`t impressed me at all.
 
fish_e_o said:
the light load was just to test to see if it was from excessive pressure.

what i found out is that remington builds this into their rifles... i guess sloppy tolerances are desirable for some people. i'll never own another and i'm strongly considering going back to remington with all my rifles and telling them to take them back.

they wouldn't do a thing about it to spite numerous calls. i was told that "it wasn't creating a problem" and "it's designed that way". if it was browning/tikka/sako this problem would have been resolved in 10 seconds if it happened at all.

i even told them i buy a lot of guns and shoot a ton and i've never seen this before. they basically told me to take my oversize firing pin hole and well put it somewhere. i would think a guy who bought 36 guns last year is a guy you want to have on your side:mad:

very mad... but rant over... i'll have to fix it myself, this and the horrible trigger.
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Unfortunately Remington Arms is owned by The Freedom Group which is owned by Cerberus Capital Management.
They also own Bushmaster, DPMS, and Marlin among others.
They have a history of not providing after sales service it seems.

http://en.wikipedia.org/wiki/Freedom_Group

This is the same company that currently owns Chrysler.

A friend of mine bought a new 2010 Dodge Ram 2500 Laramie Diesel.
The truck has a 3 year36,000 mile bumper to bumper warranty along with a 5 year 100,000 mile engine warranty.
After 18,000 miles the check engine light came on.
He brings the truck to the dealer and is told that the cats are plugged and the turbo is full of soot.
The truck never went into regen in the time he has owned it.
They charged him $500 to clean out the cats and turbo and wouldn't cover it under warranty.
2 weeks ago the ignition switch fell apart in his hands and once again they wouldn't cover it.
 
did some measuring of a primer it flows back 0.005" and the pin is 0.032" smaller than the hole. he said i'd probably be fine to shoot it as it is, some cratering is acceptable

dead meat said:
Holy crap don`t "fix" your trigger it will go off and cause all sorts of problems.:p I hear ya on the firing pin problem, iwas a big fan of Rem products but they are getting a little sloppy with the tolerances. I love my old 870 wingmaster and 700 but some of the new stuff hasn`t impressed me at all.
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haha sorry i meant replace, there's no fixing that trigger. a timney trigger is badly needed..

so i called a gun smith and he'll hook me up with a brand new aftermarket bolt for $150 installed and timney trigger for $150 plus 80 to install and tune.

maybe i'll just do it. i have the ability to make a oversize firing pin too he said that should fix it but it seems ghetto.

i'm not sure what i'll do.

if a mod wants they can wove this to gun smithing. it's kind of evolved that way.
 
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Way off topic, but that is at the dealership level I am quite sure. That's like coming after me if I owned shares in leggo if you had defective pieces. ;)


thump_rrr said:
Unfortunately Remington Arms is owned by The Freedom Group which is owned by Cerberus Capital Management.
They also own Bushmaster, DPMS, and Marlin among others.
They have a history of not providing after sales service it seems.

http://en.wikipedia.org/wiki/Freedom_Group

This is the same company that currently owns Chrysler.

A friend of mine bought a new 2010 Dodge Ram 2500 Laramie Diesel.
The truck has a 3 year36,000 mile bumper to bumper warranty along with a 5 year 100,000 mile engine warranty.
After 18,000 miles the check engine light came on.
He brings the truck to the dealer and is told that the cats are plugged and the turbo is full of soot.
The truck never went into regen in the time he has owned it.
They charged him $500 to clean out the cats and turbo and wouldn't cover it under warranty.
2 weeks ago the ignition switch fell apart in his hands and once again they wouldn't cover it.
Click to expand...
 
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