I am looking at building a new rifle with DBM so i can use the AI mags, I really want to build this rifle built in 6mm br. but I want to be able to be mag fed on not just single shot like most 6mm br's are. any one know if I can fit that round in a AI mag, if so how many fit?
6mm br in a AI mag?
- Thread starter jcwarrior87
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Re: 6mm br in a AI mag?
Well your looking at a overall length of what, 2.441" and a diameter of the cartridge is .473", and your, what, using a regular bottom metal for a short action rifle, you //might// be able to get by with a .308 Win. box magazine, because the rim of cartridge is practically the same as a .308 win., but if you were to use a .308 win. magazine, all the rounds would slam forward if you started to shot the thing. So some sort of stop would need to be applied to front of the magazine, anyways that's just my guess...
Well your looking at a overall length of what, 2.441" and a diameter of the cartridge is .473", and your, what, using a regular bottom metal for a short action rifle, you //might// be able to get by with a .308 Win. box magazine, because the rim of cartridge is practically the same as a .308 win., but if you were to use a .308 win. magazine, all the rounds would slam forward if you started to shot the thing. So some sort of stop would need to be applied to front of the magazine, anyways that's just my guess...
Re: 6mm br in a AI mag?
Look up the rifle of the week section on 6mmbr.com. There is an article there that explains how to do it.
Look up the rifle of the week section on 6mmbr.com. There is an article there that explains how to do it.
Re: 6mm br in a AI mag?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Emilio</div><div class="ubbcode-body">Look up the rifle of the week section on 6mmbr.com. There is an article there that explains how to do it. </div></div>
I've never seen that on 6mmBR.com. I've seen their Remington bottom metal conversion, but never one for AI mags. Can you link it?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Emilio</div><div class="ubbcode-body">Look up the rifle of the week section on 6mmbr.com. There is an article there that explains how to do it. </div></div>
I've never seen that on 6mmBR.com. I've seen their Remington bottom metal conversion, but never one for AI mags. Can you link it?
Re: 6mm br in a AI mag?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Accurate_Mag</div><div class="ubbcode-body"> So some sort of stop would need to be applied to front of the magazine, anyways that's just my guess... </div></div>
That is correct. Basically, the long and the short of it, the 6BR has a close OAL to that of a 5.56/.223. The OAL of a 6BR varies between 2.200 and 2.470 OAL, depending on bullets used, seating depths, etc etc. Fairly close too the OAL of the 5.56/.223 at 2.260.
What some guys did with Rem bottom metal, is they used the .223 mag spacer and cut down a 308 follower.
The only way I could see it working with an AICS mag is if the new AI .223 mag would accept a 308 follower and allow a .473BF case to pass through it (highly unlikely).
Another option would be to put the internals of the AI .223 mag in the an AI 308 mag and build a stop (some mechanical inclination required, and possibly machine work).
Otherwise, I have looked into the same thing. Currently, the 308 AI mag would be very difficult to manipulate to accept a 6BR, IMO. But with the introduction of the .223 AI mag, it may be possible.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Accurate_Mag</div><div class="ubbcode-body"> So some sort of stop would need to be applied to front of the magazine, anyways that's just my guess... </div></div>
That is correct. Basically, the long and the short of it, the 6BR has a close OAL to that of a 5.56/.223. The OAL of a 6BR varies between 2.200 and 2.470 OAL, depending on bullets used, seating depths, etc etc. Fairly close too the OAL of the 5.56/.223 at 2.260.
What some guys did with Rem bottom metal, is they used the .223 mag spacer and cut down a 308 follower.
The only way I could see it working with an AICS mag is if the new AI .223 mag would accept a 308 follower and allow a .473BF case to pass through it (highly unlikely).
Another option would be to put the internals of the AI .223 mag in the an AI 308 mag and build a stop (some mechanical inclination required, and possibly machine work).
Otherwise, I have looked into the same thing. Currently, the 308 AI mag would be very difficult to manipulate to accept a 6BR, IMO. But with the introduction of the .223 AI mag, it may be possible.
Re: 6mm br in a AI mag?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jwn</div><div class="ubbcode-body">Yeah, what Emilio said. www.6mmbr.com "Guns of the week" #32 </div></div>
I hadn't seen that one. Thats reaching WAY back.
I tried the same thing he did with an AI mag, and ended up with a destroyed AI mag that wouldn't feed 6BR reliably at all.
I even tried to mill in a ramp on my "stop" to help the sharp shouldered cartridge feed, all to no avail.
EDIT: I was really hoping to get my hands on one of the new 223 AI mags to see if I could get it to work better.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jwn</div><div class="ubbcode-body">Yeah, what Emilio said. www.6mmbr.com "Guns of the week" #32 </div></div>
I hadn't seen that one. Thats reaching WAY back.
I tried the same thing he did with an AI mag, and ended up with a destroyed AI mag that wouldn't feed 6BR reliably at all.
I even tried to mill in a ramp on my "stop" to help the sharp shouldered cartridge feed, all to no avail.
EDIT: I was really hoping to get my hands on one of the new 223 AI mags to see if I could get it to work better.
Re: 6mm br in a AI mag?
Well, there was that one on 6mmbr.com, so its not impossible.
The AI mag I modded and destroyed was in Badger bottom metal on Stiller short action in a McM stock.
I trimmed the follower, but I could not get the round to feed properly, regardless of what I did to the stop. I think I could have if I was willing to mod the action, but I simply wasn't going to do that, so I abandoned ship while I was only out the mag.
I'm going to try again though when I get a .223 mag. I also am using a different action next time that has recessed lugs. The 223 mags are cheaper. I won't feel as bad if I destroy it too!
Well, there was that one on 6mmbr.com, so its not impossible.
The AI mag I modded and destroyed was in Badger bottom metal on Stiller short action in a McM stock.
I trimmed the follower, but I could not get the round to feed properly, regardless of what I did to the stop. I think I could have if I was willing to mod the action, but I simply wasn't going to do that, so I abandoned ship while I was only out the mag.
I'm going to try again though when I get a .223 mag. I also am using a different action next time that has recessed lugs. The 223 mags are cheaper. I won't feel as bad if I destroy it too!
Re: 6mm br in a AI mag?
I am building to 6 dasher repeaters one on aics and one on mcmillan a5 with badger m5 I will let you know how it works out. since the 6 dasher is just a br improved.
I am building to 6 dasher repeaters one on aics and one on mcmillan a5 with badger m5 I will let you know how it works out. since the 6 dasher is just a br improved.
Re: 6mm br in a AI mag?
I ran a seekins 223 mag system for a while, just opened up the feed lips a bit, worked great.
I have now switched to a surgeon dbm on the rifle I have not done any mods to the aics magazines at this time. I have had a few failures with the bolt sliding over the top of the round, interestingly it has always been with the 4th round loaded in the mag. That being said it is usually not an issue.
I believe it was wi50 here had modded some aics mags by trimming the rear of the follower and adding a spacer.
I ran a seekins 223 mag system for a while, just opened up the feed lips a bit, worked great.
I have now switched to a surgeon dbm on the rifle I have not done any mods to the aics magazines at this time. I have had a few failures with the bolt sliding over the top of the round, interestingly it has always been with the 4th round loaded in the mag. That being said it is usually not an issue.
I believe it was wi50 here had modded some aics mags by trimming the rear of the follower and adding a spacer.
Re: 6mm br in a AI mag?
I was asking the same question..................I think if you want to use the AI mags in .308 and have 100% reliable feeding and no ,ucking around then the 6mmx47 Lapua is the asnwer and is not a ballistic twin of the 6mmBR ?
I was asking the same question..................I think if you want to use the AI mags in .308 and have 100% reliable feeding and no ,ucking around then the 6mmx47 Lapua is the asnwer and is not a ballistic twin of the 6mmBR ?
Re: 6mm br in a AI mag?
I would have to say that the 6x47 is not the ballistic twin of the 6BR. It holds 10 more grains of powder, not much when talking huge magnums, but its a lot when you go from the 30grains of the 6BR to the 40 grains of the 6x47. The 6x47 uses a large rifle primer, and has a different flash hole. Consequently the 6x47 more effectively shoots the 115DTACs and is harder on barrels.
IMO, the 6BR is a more inherently accurate cartridge. It is personally one of my favorites. But the straight body and sharp shoulder angle make it a hard cartridge to swallow in the tactical world. Its just plain hard to get to feed right. Not impossible, just hard.
If anyone has or makes AI mags modded for the 6BR, please PM me. I'd love to one, if not several. I'd love to have a 6BR in an AICS chassis, similar to the one on 6mmbr.
I would have to say that the 6x47 is not the ballistic twin of the 6BR. It holds 10 more grains of powder, not much when talking huge magnums, but its a lot when you go from the 30grains of the 6BR to the 40 grains of the 6x47. The 6x47 uses a large rifle primer, and has a different flash hole. Consequently the 6x47 more effectively shoots the 115DTACs and is harder on barrels.
IMO, the 6BR is a more inherently accurate cartridge. It is personally one of my favorites. But the straight body and sharp shoulder angle make it a hard cartridge to swallow in the tactical world. Its just plain hard to get to feed right. Not impossible, just hard.
If anyone has or makes AI mags modded for the 6BR, please PM me. I'd love to one, if not several. I'd love to have a 6BR in an AICS chassis, similar to the one on 6mmbr.
Re: 6mm br in a AI mag?
Brand if you neck down 6.5x47 brass you would be using small rifle Primer's ? this is the round I am talking about the 6.5x47 Lapua necked down, I thought the case capacity between the two was very similar withing a couple of grains not 10, but I could be mistaken.
Brand if you neck down 6.5x47 brass you would be using small rifle Primer's ? this is the round I am talking about the 6.5x47 Lapua necked down, I thought the case capacity between the two was very similar withing a couple of grains not 10, but I could be mistaken.
Re: 6mm br in a AI mag?
While I no longer have a 6x47, I was loading 39.6gr of powder behind a 105. I currently shoot a 6BR with 29.4gr behind the same 105s.
I do stand corrected on the small rifle primer. The brass offered by Lapua today does utilize a small primer, but before its introduction, the brass was made from trimmed and formed brass, I used 308.
While I no longer have a 6x47, I was loading 39.6gr of powder behind a 105. I currently shoot a 6BR with 29.4gr behind the same 105s.
I do stand corrected on the small rifle primer. The brass offered by Lapua today does utilize a small primer, but before its introduction, the brass was made from trimmed and formed brass, I used 308.
Re: 6mm br in a AI mag?
I'll be the first to admit, the 6x47 is a ballistically superior round. I just don't ever remember it being as much fun to shoot as the 6BR.
Regardless of that, I started a similar thread over on 6mmbr.com to see if I could rustle up a AI mag that someone had successfully converted to reliably feed 6BR.
I'll see if I can't score one, or several. If so, my interest has been revived in a 6BR AICS platform rig.
I'll be the first to admit, the 6x47 is a ballistically superior round. I just don't ever remember it being as much fun to shoot as the 6BR.
Regardless of that, I started a similar thread over on 6mmbr.com to see if I could rustle up a AI mag that someone had successfully converted to reliably feed 6BR.
I'll see if I can't score one, or several. If so, my interest has been revived in a 6BR AICS platform rig.
Re: 6mm br in a AI mag?
Brand what speeds were you getting from the 105 A-Max ??
I was kind of hoping the 6x47 was in the same capacity class as the BR seems like it slots right in between .243 and the 6mm BR
The 6BR is the kind of perfromance I was looking for but it MUST feed from aics mags every time.....so I started considering the 6x47...I suppose you could always use lighetr loads to emulate the 6BR.
Brand what speeds were you getting from the 105 A-Max ??
I was kind of hoping the 6x47 was in the same capacity class as the BR seems like it slots right in between .243 and the 6mm BR
The 6BR is the kind of perfromance I was looking for but it MUST feed from aics mags every time.....so I started considering the 6x47...I suppose you could always use lighetr loads to emulate the 6BR.
Re: 6mm br in a AI mag?
I threw the following photo from the 6mmbr web-site into a thread on this subject just the other day. The author mentioned that while he added a spacer to the front of the magazine he also left a gap at the rear.. looks like ~5mm in the photo..
I threw the following photo from the 6mmbr web-site into a thread on this subject just the other day. The author mentioned that while he added a spacer to the front of the magazine he also left a gap at the rear.. looks like ~5mm in the photo..
Re: 6mm br in a AI mag?
And you are absolutely correct. It is the best of the 243 with the best of the 6BR. Faster, but not a barrel burner.
And you are absolutely correct. It is the best of the 243 with the best of the 6BR. Faster, but not a barrel burner.
Re: 6mm br in a AI mag?
..and there is also a tech article on how to mod the R700 .223 internal mag to feed 6mmbr.. may provide some useful info..
http://www.6mmbr.com/Rem700magfix.html
RJ
..and there is also a tech article on how to mod the R700 .223 internal mag to feed 6mmbr.. may provide some useful info..
http://www.6mmbr.com/Rem700magfix.html
RJ
Re: 6mm br in a AI mag?
Have been shooting a rebarreled PSS with M5 bm in 6mm Dasher. Feeds fine with standard AI 308 mags, but will leave a round laying on top of next round if the bolt isn't run with some authority. As long as you run the bolt quickly all is good, baby it and you've got a spent round in the way.
Currently building another 6 dasher in a AI chassis with 700 action. Using a bolt modified with a Sako extractor that has worked better in other 6 dashers, guess I'll see.
Really like the round, hardly any recoil, my 308 suppressor works great. 105's as mentioned in the 3000 range, 87 v-max around 3120.
Have been shooting a rebarreled PSS with M5 bm in 6mm Dasher. Feeds fine with standard AI 308 mags, but will leave a round laying on top of next round if the bolt isn't run with some authority. As long as you run the bolt quickly all is good, baby it and you've got a spent round in the way.
Currently building another 6 dasher in a AI chassis with 700 action. Using a bolt modified with a Sako extractor that has worked better in other 6 dashers, guess I'll see.
Really like the round, hardly any recoil, my 308 suppressor works great. 105's as mentioned in the 3000 range, 87 v-max around 3120.
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