My AIA M10 No.4 Review and information, lots of pictures

aric84

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Okay, I have been himming and hawing about this rifle for years now and finally took the plunge. I have decided to do a little writeup on the rifle since information seems to be scarce on them and there are some things that I have never noticed mentioned anywhere else. I hope that this will be of help to anyone thinking of picking one up.

I ordered the rifle from Marstar and it arrived within 2 weeks of ordering. The packing was excellent, and there are a lot of goodies with the rifle. The rifle is currently offered with a soft case, steel scope rail designed for the rifle, sight adjustment tool, 2 matched/numbered 10Rnd mags, NcStar Scope, and not mentioned on the site,it came in a hard shell case to boot.

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The fit and finish are great on every part of the rifle. It came coated in a very light preservative oil, easily wiped off with papertowel. The bolt, bolthead, magazines and receiver are all numbered to eachother. I did have to tighten a couple of screws here and there, so it's a good idea to check this before shooting, especially the main(king) screw where the target sling swivel is located.

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The magazines are a bit tight to get in and out, and the bolt is very close fitting, with some friction due to the parkerizing, but that will be resolved with use as the finish wears off of the working surfaces.

The layout of the rifle is very similar to a No.4, the sight arrangement accepts standard No4 rear sights but come with a 2 position flip sight with smaller apertures than any No4 sight I have. I would say about .020 inch diameter, so they should be very helpful in shooting. An improvement over the original sight is that it does not have to be flipped a particular way to facilitate bolt removal. There is also a trapdoor in the butt with the proper cuts for a pullthrough and oil bottle to be placed there if you so choose.

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Feeding and ejection are very smooth even though the action is not quite a pure enfield type. Why is it not a pure Enfield? The boltface is counterbored like a remington 700 but with a large external extractor that snaps over the case rim rather than the cartridge slipping under it from the magazine. I would have preferred the controlled round feed, but there is a big advantage to the new boltface, and that is the very positive ejection offered by using the plunger extractor. Regardless of the speed of bolt operation the brass is smartly ejected and there is no need to give the bolt a sharp snap back to engage an ejector screw as in the original enfield design.


There were two major differences that I noticed between the M10 and the original No4:

1) When the magazine is empty on the M10, the bolt cannot be pushed forward because the design of the magazine(m14 type) is such that the follower gets in the way. This can be helpful to let you know you are empty when shooting fast, but is a nuisance when dry cycling the action(minor point really... just remove the mag).

2) Bolt slop on an empty chamber. When the bolt is closed on an empty chamber the bolt can be slid forward and aft a good .050, but this play goes away completely when a round is chambered. I am guessing the is due to how the cartridge is headspaced. My No4 and No1 do not have this kind of play, and I chalk it up to a difference of designs. It did not impede accuracy or function at all.
UPDATE: There is the same movement in my other enfield's as well but the slack is taken up by the extractor bearing against the cutout on the barrel. Since the extractor is further back on the AIA M10 and not extending forward from the bolthead to contact the barrel in any way, it allows the bolt to move freely.

So.... How's it Shoot?!

Using the NcStar scope, surprisingly well! These were shot at 100 yards using some old loads assembled with speer 168 gr HPBT match and H4895. The scope was not the clearest, but it held plenty steady. Here are the last 10 of the first 20 shots I ever put through the rifle.

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I hope this has been informative for everyone, If you have any questions please ask and I will try to answer them.

In my opinion, this rifle is a great range rifle in the same price range as the low to mid level Savages and Remingtons, most of which are synthetic stocked. You get the added benefit of the spare(and larger cap) mags, rail, scope and 2 cases added in for free, saving you more cash for ammo. Ifyou are looking for a nice rifle to just play around with, definately consider the M10, you will not be dissapointed.

Cheers,
Aric
 
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Thanks guys, I've been wanting to get a good writeup done for everyone for a long time. I'll probably end up adding updates to the OP as I notice things. Probably do a report after a few hundred rounds too.
 
Please keep us updated. I just bought the AIA M10 B1 Sportster from Marstar and I did not have the chance to take her to the range yet. I also bought a new scope for her, Bushnell Trophy 4X12 40mm DOA reticle. I will use the NcStar on my Savage 223 after I throw away that crappy Tasco scope that I currently have on her.
Did you take your M10 to a smith to check headspace? Is it necessary? I read on Marstar website that if you replace the bolt head, you should take the gun to the smith for headspace measurements. I did disassemble the bold removing the bolt head. Do you think I should have the head space measured now? I am very new to Enfield actions (it took me 15 minutes to figure out how to put the bolt into the action as the gun did not come with the manual).
 
John Sukey, looks like we got the ones destined for US market. Not sure what happened there but there was some importation issue at the US border and the few Canadian dealers intercepted the shipment and hence we can enjoy them now. I could be wrong. John from Marstar of course would know best what the issue was.
 
John, Jim already handled the manual issue. It is in transit as we speak. Thanks. Everything else is perfect. Makes me really want to get the M10 No4 a lot now if price wasn't an issue at this point.
 
The AIA rifles got a lot of undeserved publicity. The theories behind the bad publicity were flawed and I suspect more due to imagination than reality. I have the M10 B2 Match model and it has the earlier chrome lined bore. No, it doesn't effect accuracy one bit. The only thing that effects accuracy with it is the shooter.

When these rifles are gone, there won't be any more of them coming in, from what I can gather. Price may be part of the reason but the BS controversey didn't help anything either.

I don't usually tell people to do this but if you have to swing a small loan or put it on your credit card, do it. They are darn fine rifles.

My only regret is that the 7.62x39 models never showed up. I would scoop one of those in a heart beat.
 
Abalas,

I did not bother checking the headspace at all, There should be no reason to suspect a problem on this rifle. As for checking the headspace after changing the bolthead: the original enfield action made use of different lengths of bolthead to take up the slack when fitting a bolt. It was a method of speeding production a bit since the original barrels are indexed and it was not a simple task of just threading the barrel in until the headspace was good to go. With the savage type collar on the M10, the barrel can be threaded in onto a guage without worrying about indexing the sight and extractor grooves.

If you were wondering if you need to check the headspace after you removed and then reinstalled the bolthead on your M10, the answer is no(unless you grabbed one off on another M10 that is). Just make sure that the bolt head is screwed in all the way or it will not close on a cartridge, it's a very common mistake made by people unfamiliar with the enfield action.

As for the importation part, It looks like mine was originally headed for the states. My M10 is marked on the right side of the reciever as being imported by Sabre defence industries of Nashville Tenn. Glad they made these up here!
 
Oh!

Wanted to say a huge THANKS to John and all the people at Marstar for bringing this stuff in for us. Your customer service was great and I will certainly be doing more business with you in the future, probably for the sporter, unless the target ones ever come in again.

Cheers,
Aric
 
I don't have a scale handy, but I actually think the M10 is lighter than my No.4 but not by much. It will depend greatly on the type of wood you have on the No.4, mine is quite dense. I find the rifle hold and points well, just like the original.
 
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