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Old March 04, 2019, 22:12   #1
tothemax
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Barrel timing tools

Hey guys. Does anyone have a method of making the timing rods at home?

I have a rhodie fall kit that the windage sight is ran all the way to the left but it's nuts on at 25 and 300. The barrel is as close as I can get with the naked eye. Before I had it slightly undertimed and the shots were low and left.

It's frustrating but I want to get it fixed. I would hate to send it to someone if I can fix it myself.
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Old March 05, 2019, 10:43   #2
MAINER
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Got some one-piece Cleaning Rods? Remove the Handguards and slip a rod thru the hole, rubberbands wrapped around the Ft. Sight. to hold it in place. The second rod just lays across the Receiver Rails. View the alignment from the rear of the rifle.

Another method is Bubble, or digital levels placed on top of the Ft. sight ears and receiver rails. I have also used a Protractor on Inclinometer with a magnetic base with a dial to read degrees.
This method relies on the supposition that the Front Sight ears are undamaged and level.

Turning the rifle sideways and placing levels on the Barrel flat to align with the side of the receiver is another suggestion, but one I have not tried.

Someone mentioned using A Laser Bore Sighter. I Haven't tried that method yet, but intend to do so next time.

Yet another method is a Block machined to fit between the Receiver rails with a threaded Rod extending upward.
Another Rod is threaded to fit the Front Sight hole and the two Rods used to align the barrel/Receiver.
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Last edited by MAINER; March 05, 2019 at 11:07.
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Old March 05, 2019, 10:57   #3
gunplumber
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I guess it depends whether you want to use a precision ground rod for exact alignment . . .

Or whatever some random piece of scrap you have lying about is good enough.

I had used some smaller diameter ones and they were adequate. Until I decided that adequate wasn't good enough, so I had these made.

With this rod, your weakest link is the accuracy of your level.


https://arizonaresponsesystems.com/p...a1-timing-rod/
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Old March 05, 2019, 13:01   #4
tothemax
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Thanks for the info. I would like to put this project to bed so I may buy that tool and get a nice digital degree measurer.

If I am off by a degree or two, is that enough to make the rear windage that far off?
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Old March 05, 2019, 20:49   #5
MAINER
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According to my calculations, a "degree or two" will throw you off a whole bunch probably half a foot or so. Actually, calculations give me a brain ache at this time, so my notes say, 1 degree will shift your MPI 4.0" at 100 yards or metres, forget which, but I'm an analog type so I would go with yards.

If the above information proves incorrect, blame a fellow named Jeter. Some folks here know him.

One rifle I had was throwing shots a good 8" to the right. I was surprised to find that the barrel was only 2~3 degrees overtimed as near as I could measure with my somewhat rudimentary Angle Indicator device.

Get it as close to zero as you can, test fire for proof.
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Old March 06, 2019, 06:35   #6
lockjaw
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The nice part about FAL tools is that resale value is high. You can get back most, if not all, of the money paid..... though most will decide to keep their tools (and should!).
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Old March 06, 2019, 08:17   #7
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Contact ratas calientes. He makes most of the tools you need to build a FAL. He is good people to deal with. If you look up his thread on receiver wrenches you'll see that there is page after page of happy FAL'ers.

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Old March 06, 2019, 10:07   #8
tothemax
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Thanks guys.
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