"Type Ate" clearance

macman37 · #1 03-29-09, 23:06

'evening, gents.

Going through some memories of a past issue of SWAT magazine, I recall reading about "Type Ate" malfunction clearance drills using (IIRC) fixed blade knives.

Well, yesterday I got a carbine out, locked the bolt back, dropped a fired case in the chamber, and tried going through how I'd do this drill...and promptly had questions.

What part of the case are you supposed to stick with the knife? Is there a blade shape that makes clearance easier? Would an entirely new tool be the trick for this rather than a knife?

Thanks in advance for any clarification.

Steve · #2 03-29-09, 23:17

Mac.......Stop, dude call me.

never do this with a folder
if you must, use a fixed blade with the spine of the blade facing you
or use a multi tool of some sort.....

see you this upcoming week?

jmart · #3 03-29-09, 23:20

The blade is to hold the bolt to the rear while you push the CH fwd.

Anything small enough to fit in the ejection port, but sturdy enough to provide enough leverage to hold the bolt back. I'm sure there are items on a multi-tool that could work, just don't use a blade that, if collapsed, would slice your fingers.

bkb0000 · #4 03-29-09, 23:20

never heard of such a thing.. must be for casings with torn rims? otherwise, mortaring it will give you a hell of a lot more energy to extract, and takes less time.

if it's for torn rims, i cant see being able to pry it out with a knife. you'd most likely just chip up/break the tip off your knife-

ETA- i dont think i'm understanding the drill... bolt stuck on a stuck case?

jmart · #5 03-30-09, 00:13

It's a type of override where the case is wedged between the bolt and the receiver and mortaring just wedges it in there tighter.

Corrective action is to keep the case pinned fwd while retracting the bolt. The key is having the CH stay fwd to dislodge the case as you push the bolt to the rear using some type of implement. The spine of a fixed blade works nicely.

Heavy Metal · #6 03-30-09, 00:15

You can also just strip a live round from a mag and use the nose of it.

NCPatrolAR · #7 03-30-09, 01:39

Quote:

Originally Posted by bkb0000

never heard of such a thing..

Its a bolt over base malfunction

macman37 · #8 03-30-09, 21:25

Quote:

Originally Posted by Steve

Mac.......Stop, dude call me.

never do this with a folder
if you must, use a fixed blade with the spine of the blade facing you
or use a multi tool of some sort.....

see you this upcoming week?

LOL I DO remember what you told me about folding knives

I have a couple fixed blade knives that I went throught the motions with... I figured I'd post the question since I wasn't able to run this practice 'til now.

Wish I could swing up and shoot the breeze this week, but I can't. (Unless you're there on the weekend, then there's a chance...)

edit: YES the bolt-over-base malf ... I am mistaken about the remedial action for Bolt over base vs. a torn rim... sorry.

Steve · #9 03-31-09, 15:27

have class all weekend at livingston

RogerinTPA · #10 03-31-09, 22:21

Quote:

Originally Posted by NCPatrolAR

Its a bolt over base malfunction

That's what I was thinking.

To the OP, using a live or empty round to force the bolt back works too. It will give you the leverage you need without breaking your knife. It's part of a malfunction drill where you or the instructor, induces malfunctions, then you practice clearing it. "Bolt over base" is a very f&#ked up and very difficult double feed malfunction to clear.

macman37 · #11 04-01-09, 07:57

Quote:

Originally Posted by rharris2163

That's what I was thinking.

To the OP, using a live or empty round to force the bolt back works too. It will give you the leverage you need without breaking your knife. It's part of a malfunction drill where you or the instructor, induces malfunctions, then you practice clearing it. "Bolt over base" is a very f&#ked up and very difficult double feed malfunction to clear.

Yeah, I definitely had my malfs confused. My bad.

Under these mistaken pretenses I've been laboring on designing a carbine-mounted, inexpensive tool to clear these malfs, that would allow knives to be knives again. The good old fashioned Ka-Bar type knife.

I confused the Bolt-Over-Base malf with a torn rim. Probably because just before I had one of Steve's excellent carbine classes late last year, I had a case-head separation at the range and had to call it a day with that rifle. I had nothing on me to get the torn forward part of the case out of the chamber...

Ah well. I'll take my lumps now.