Ftrb???

[biglou13]

i recently got my springer loaded back from factory for repair, they changed, extractor, front site to optical, parked it, tightened the slide, not full slide/frame fit (just to rattle less). i tested it at indoor range all mags worked no FTE issues, thats what she went back for. shot 50 rounds

today went to shoot some plates. about 100 rounds in i get FTRB. approx .125 or less

RO suggested and lubed her up and woked for 20 +- rounds then she FTRB again.

most mags were loaded with 5 rounds only, for 5 plate rack at range.

i can boost back of slide and it will go to battery

she will go into battery with out cartridge.

she feels a little stiff cycling her without cart but a little lube fixed that.

with no barrel,bush or spring she runs smooth

tried heavier spring and still ftrb

round drops easily and fully into naked barrel, i also noticed that round in chamber has some play to it. how much is acceptable?

upon closer inspection it appears that fps "clocks" if you will, it definitely has some play in it, looking from rear it rotates a small but visible amount, which leads me to belive that extractor will clock?? is this the problem? if so why only at 150+ rounds?

if it is an extractor clocking issue causing ftrb can some one explain please.

im assuming i need a new fps. will springfield armory warranty this part or am i on my own? if im on my own what fps do you suggest. the one in it has radius

also since it was at springfield armory for a new extractor shouldn't they have noticed the loose fps?

any suggestions.

oh yeah im shooting range relaods.

thanks for your help in advance

[Hunter]

Check the reloads first to be sure they are in spec.
FTRTB can occur from too much extractor tension. As the case rim slips under the extractor claw during feeding if the extractor has too much tension the recoil spring cannot overcome the extractor tension. The extractor must flex as the slide goes into battery, if it does not that will hold the slide out of battery. The FPS should be a snug fit and should not allow the extractor to clock.

[twin oaks]

Expanding on Hunter's explanation, a 'clocking' extractor will cause the same thing as an over tensioned one. Or rather, an extractor that's rotated will not flex as it should, nor will it greet the incoming cartridge as nicely (extractor claw engagement, wrong angle holding the round off center, etc.).
I dont' know if SA will warranty the FPS, but if you decide to get a new one, get the oversized one from EGW. You'll need to do a little fitting, and a little filing, but you should end up with a better product. See : Amazing recoil reduction with a simple part change."

[biglou13]

cartridge is in chamber approx 95% if not more. and occcurs at pretty consistient distance to lock up (by eye ball)in chamber before FTRB occcurs.

also why only did failure start only after 100+rounds? wouldnt clocking malfunction be evident before?

How does one test for excess extractor tension????

I'm gonna order a fps or 2 anyway.

[twin oaks]

Field strip the pistol. Take the slide and insert a live round under the extractor, feeding up from the bottom, just like it would when it cycles. The tension on the extractor should hold the round in place, and require a shake to dislodge it. You can also judge tension by how much coffee it's drinking this AM:D
The extractor's rotation isn't evident at first, because the cycling of the pistol is causes the action IIRC.

[biglou13]

ive read sticky on extractor.

ok how hard a shake, to determine excess tension?

a shaking will not dislodge

gripping slide at bushing end. it takes a firm tap or 2 on opposing palm of hand to dislodge?

what is "IIRC"

[dogmush]

ive read sticky on extractor.

ok how hard a shake, to determine excess tension?

a shaking will not dislodge

gripping slide at bushing end. it takes a firm tap or 2 on opposing palm of hand to dislodge?

what is "IIRC"


Seems a little tight from that description.

IIRC= If I Recall (or Remember) Correctly

[twin oaks]

I agree with dogmush; that does seem overly tight. How much shake.... well the best I could describe is "about what it takes to get good lumpy mashed 'taters off a spoon without hitting the plate."

[biglou13]

perfect description!!!!!!


then yes it is too tight. along with loose fps. ill be calling springfield armory in the am.

thanks for the info