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Old September 16th, 2020, 08:08 AM #1
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03A3 Magazine Problem

The 03A3 is one I put together from a barrelled action I got last month. I bought a model 10 stock on eBay and a stock hardware kit and trigger guard assembly from Sarco. I trigger guard assembly is a new reproduction.

The problem I'm having is, the mag and follower frequently bind up when loading and sometimes when closing the bolt it won't pick up a round. I'm thinking it may be the fact that it's a reproduction trigger guard.

Any suggestions?
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Old September 16th, 2020, 08:33 AM #2
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Get a factory stamped or milled magazine ,spring and follower.
That magazine / bottom metal should have a very slight gap at the rear of the mag well that tapers forward towards the receiver ring.
Also, That gap should be less than half the width as the follower is thick.
Sarco supplies mag springs that are sometimes a reverse bend to the leaves of the spring or are to weak.
Every once in a while you’ll see a m17 follower supplied as a replacement on some rifles.
The repo stamped magazines usually do not fit up correctly due to the bend at the top of the mag well at the rear, spacing between action screws or height of the mag walls at the sides.
There should be a smooth transition to the milling at the action rails and the milled area where the bolt stop would go on a 1903 action.
If you fiddle with it you may be able to straighten it out to improve functionality.
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Old September 16th, 2020, 08:43 AM #3
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Quote:
Originally Posted by Doco Overboard View Post
Get a factory stamped or milled magazine ,spring and follower.
That magazine / bottom metal should have a very slight gap at the rear of the mag well that tapers forward towards the receiver ring.
Also, That gap should be less than half the width as the follower is thick.
Sarco supplies mag springs that are sometimes a reverse bend to the leaves of the spring or are to weak.
Every once in a while you’ll see a m17 follower supplied as a replacement on some rifles.
The repo stamped magazines usually do not fit up correctly due to the bend at the top of the mag well at the rear, spacing between action screws or height of the mag walls at the sides.
There should be a smooth transition to the milling at the action rails and the milled area where the bolt stop would go on a 1903 action.
If you fiddle with it you may be able to straighten it out to improve functionality.
Thanks I'll look at that. I believe the mags are stamped for the A3.
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Old September 16th, 2020, 08:47 AM #4
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Yes...the '03A3 is full of stamped parts where the '03 parts are milled. While not as nice looking the stamped parts are just as reliable in a combat rifle as well as less expensive and time consuming to make with less waste.
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Old September 16th, 2020, 08:52 AM #5
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You’ll see what I mean when you check it out.
By stripping the rifle and fitting the mag box to the receiver alone and then by inserting the screws, you can see where it may be binding at the rear of the receiver with just the metal components.
When you set the action in the stock and install the screws, any apparent wood to metal problems will be able to be spotted.
If you have a stamped follower or even a milled one, they can drag on the mag walls internally.
A little bit will cause rough feeding.
Usually the tap at the top rear needs fitted to the slot milled into the receiver or the width / angle adjusted.
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Old September 16th, 2020, 09:34 AM #6
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Actually, I think I'm going to post a WTB in our classifieds to see if I can get a USGI mag and follower. I would rather have that than a repro anyway.
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Old September 16th, 2020, 10:13 AM #7
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Quote:
Originally Posted by Warpspasm View Post
Actually, I think I'm going to post a WTB in our classifieds to see if I can get a USGI mag and follower. I would rather have that than a repro anyway.
You’ll be ahead of the game regarding reliability and function.
You can spot the stamped repo bottom metal By looking at the reinforcements stamped into the side of the box.
On the repo’s the guides stamped into the mag well do not extend the full length vertically of the sides of the box.
We already described the tab at the top rear of the box.
Sometimes the entire rear of the metal at the rear (the seam) appear to be slightly mis-aligned.
That milled guards are the best and will swap right out and are correct for a 03a3’s and Happen to be games legal.
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Old September 16th, 2020, 11:41 AM #8
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Quote:
Originally Posted by Doco Overboard View Post
You’ll be ahead of the game regarding reliability and function.
You can spot the stamped repo bottom metal By looking at the reinforcements stamped into the side of the box.
On the repo’s the guides stamped into the mag well do not extend the full length vertically of the sides of the box.
We already described the tab at the top rear of the box.
Sometimes the entire rear of the metal at the rear (the seam) appear to be slightly mis-aligned.
That milled guards are the best and will swap right out and are correct for a 03a3’s and Happen to be games legal.
I see some milled guards on Sarco, but they don't say USGI. Are there repro milled guards out there?? I don't want another repro. The one they show is $69 and comes with a base plate, pin, latch spring and latch. https://www.sarcoinc.com/springfield...uard-assembly/
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Old September 16th, 2020, 11:46 AM #9
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https://www.amherst-depot.com/gunparts.03A3.htm
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Old September 16th, 2020, 11:50 AM #10
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Originally Posted by TheOriginalMexicanBob View Post
Thanks, but they're out of stock. LOL
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