Tikka mags: Orange, 223, flush, etc. project / future product

[BBob]

The UM (saum) is a WSM diameter case if I am not mistaken, slightly bigger than the PRC.

It is not, it is based off the SAUM case (the original name was 6SAUM Improved UM). It is SAUM diameter, not WSM.

"For those interested, the 6UM is made from the 6.5 SAUM necked down to 6mm with the shoulder blown out to 40 degrees. This cartridge was primarily developed by Unknown Munitions in Post Falls, Idaho. Contact https://www.unknownmunitions.com/ for more information."

 

[pods8 (Rugged Stitching)]

It is not, it is based off the SAUM case (the original name was 6SAUM Improved UM). It is SAUM diameter, not WSM.

I said it was based off the SUAM. Which I thought was the same case diameter as the WSM, which it is, they are .55” diameter cases at the bottom of the body. Which is larger than the PRC. Tikka has WSM mags which are wider internally than the PRC, that’s why I mentioned WSM.

 

[BBob]

I said it was based off the SUAM. Which I thought was the same case diameter as the WSM, which it is, they are .55” diameter cases at the bottom of the body. Which is larger than the PRC. Tikka has WSM mags which are wider internally than the PRC, that’s why I mentioned WSM.

Well it is only .005" diff but the WSM is .555" and the SAUM is .550" and you are correct with the SAUM being larger than the PRC.

 

[pods8 (Rugged Stitching)]

Well it is only .005" diff but the WSM is .555" and the SAUM is .550" and you are correct with the SAUM being larger than the PRC.

The main point I was trying to make was WSM (and presumably SAUM) don’t fit in the tikka PRC mags.

 

[BBob]

The main point I was trying to make was WSM (and presumably SAUM) don’t fit in the tikka PRC mags.

Gotcha, I’ll admit that I initially read your post literally and missed that point.

 

[flyinsquirel]

In for a few standard capacity 223 mags, and 1 flush just to have it.

 

[waspocrew]

So does anyone have a tikka ARC assembled currently?

@TX_Diver
@Sasha_Ivanic
@mahonsr

 

[TX_Diver]

Yes. I feed it factory ammo from a tikka 223 mag with no issues so far.

My MT .223 mag does not feed the 6arc.
M+ mags work okay

@pods8 (Rugged Stitching)

@TX_Diver
@Sasha_Ivanic
@mahonsr

 

[wind gypsy]

Haven’t read the last 2 pages. The only real reason of interest in m over m+ is for ARC, BR variants, 22-250, and GT variants that would benefit from a shorter than m mag.

 

[pods8 (Rugged Stitching)]

Haven’t read the last 2 pages. The only real reason of interest in m over m+ is for ARC, BR variants, 22-250, and GT variants that would benefit from a shorter than m mag.

So the question is what COAL would be ideal for this use case? 2.4” was tossed out for ARC, not sure if the above umbrella changes that.

Looks like GT would need more like 2.55”?

 

[ShootOkHuntWorse]

Depending on price I definitely need 2 223 mags.

 

[khuber84]

So the question is what COAL would be ideal for this use case? 2.4” was tossed out for ARC, not sure if the above umbrella changes that.

Looks like GT would need more like 2.55”?

I have gray ops 6gt mags, they have 2.63 internal, if I load a 112 Barnes or 109 eldm to touch in my 0.170 fb chamber, they will not fit by about 0.020.
My 25gt rounds have no chance of fitting. I think 2.700 would be ideal for a 6gt to feed any and all combinations.

For an arc, I'd think the same 2.550 of the 223 mags would work, I believe coal touching with a heavy Berger would be around 2.41ish ".

 

[KU_Geo]

223 mags interest me

 

[pods8 (Rugged Stitching)]

I have gray ops 6gt mags, they have 2.63 internal, if I load a 112 Barnes or 109 eldm to touch in my 0.170 fb chamber, they will not fit by about 0.020.
My 25gt rounds have no chance of fitting. I think 2.700 would be ideal for a 6gt to feed any and all combinations.

For an arc, I'd think the same 2.550 of the 223 mags would work, I believe coal touching with a heavy Berger would be around 2.41ish ".

Seems like the GT would just work well in a normal M mag, is there a real desire from folks for ~2.7"

A 2.55" ARC (or other variants) makes a bit more sense for those.

 

[wind gypsy]

Seems like the GT would just work well in a normal M mag, is there a real desire from folks for ~2.7"

A 2.55" ARC (or other variants) makes a bit more sense for those.

This makes sense to me.

Not sure if one mag would work great for both ARC and BR variants due to different diameters? Woulda been a lot more cool if Hornady just supported 6 BR or Dasher instead of the oddball ARC case diameter but i get it, small frame ARs..

 

[pods8 (Rugged Stitching)]

Not sure if one mag would work great for both ARC and BR variants due to different diameters?

Only ~0.03" difference in diameter, they would just sit a bit more proud in a standard mag (vs low in a 223 one).

 

[ElPollo]

This project grew out of DIY tinkering but needed a spring source to really have traction. I have gotten a quote for having springs made and sent in a sample for final review before authorizing production. It requires a fairly large batch be made to offset the tool change fee. That combined with the realities of the printed material and post processing needed, to hold up on a hot dashboard for instance, the base that was likely to tinker with the project is pretty small. I'd like to recoup spring investment sooner than later and most folks can't or won't want to deal with printing these which would inevitably lead to requests to print them. SO we're gonna just jump ahead to that inevitablity and I am working on bringing this product out eventually (small scale, this is just a side project) assuming no road blocks arise.

As things get closer I'll probably post a poll to get a feel for what quantities / configurations to prioritize. For now lets just have a loose discussion.

Generally if talking about the black color there isn't really any benefit to these over the typical 3rd mag sizes (like L, M, M+) and the factory material is better, no argument. The option to have orange mags, different COAL variants, and flush fit mags is really where this project offers some sort of benefit (up to the user if they see a benefit in it, not all will and that is just fine). You could always just paint a factory mag as well, might as well acknowledge that.

Caveat: All development to date has been with springs out of factory tikka mags, the whole thing hinges on getting some similar springs made up and they function correctly.

The M+, L, and 223 are the most developed and I and a few others have been using them in porotype materials (IE they'd warp on a hot dashboard) and tweaking things. I don't really see any benefit to make an M version when you can just run a M+ on the short bolt stop, does anyone see something I am overlooking to justify an M variant? The body of the 223 mag fits ~2.55" but I haven't tried cycling anything that long because it won't fit into my 223 chamber, 2.45" is the longest I can cycle in my gun.

Some initial work was done on PRC in 3rd and flush (2rd), I don't have a PRC so I haven't been able to really progress much on that other than limited user feedback. More focus can be put on it if there is enough interest.

Brief work on a longer COAL WSM, I do have a WSM and could work on that further eventually. That said I've been happy with my HCA mag for my 300wsm so frankly I'd suggest that if being honest.


What thoughts, comments, questions, suggestions, interest do you all have before I pull the trigger on a run of follower springs?

View attachment 941271
View attachment 941272

Do you have a timeline on these yet?

 

[Fireflyfishing]

Looks like the work in a rokstock. How about a KRG Echo?

 

[gbflyer]

2.5 .223 mags that are flush. Yes please. Any color including rainbow, purple, titty pink, whatever as long as they work

 

[pods8 (Rugged Stitching)]

Do you have a timeline on these yet?

I did put in a spring order, they quoted a couple months so I’ll see how accurate that ends up being.