Montana Rifle Co, Shoot2Hunt, and Rokslide Rifle

khuber84

WKR
Joined
Jun 6, 2019
Messages
1,727
As Form said, it'll be done correctly for the application. The hard part on my end is feeding those dinky little things :cool: I'm not sure if everyone knows, but our standard short action has a 3.15"mag box.

Things are progressing on the project, sample bolt knobs heading out to Form for some proper field fingering.
I know Form is all bout the dbm. So you're saying, the internal dimension of the detach mag is 3.150"? That's a solid for anyone choosing to rebarrel, or (if you offer this) buy and action and dbm and build off it for a custom route. I personally love my crf ARC and zermatt actions. Would be very interested on building on this new MRF action.
 

Imac45acp

FNG
Joined
Apr 28, 2022
Messages
22
I know Form is all bout the dbm. So you're saying, the internal dimension of the detach mag is 3.150"? That's a solid for anyone choosing to rebarrel, or (if you offer this) buy and action and dbm and build off it for a custom route. I personally love my crf ARC and zermatt actions. Would be very interested on building on this new MRF action.
3.15" is for the internal box. 308/Creed size rifles will be shipping with a flush 3 round poly, and 5 rnd metal mags (MDT). The poly is 2.85" and the metal are non-binders so they stretch to 2.96". Sorry for the confusion. Finding a 223 DBM with appropriate COAL has proven difficult. Once that's figured out, I'll have to adjust the mag height and bolt stroke for a proper feed cycle. Timing a DBM CRF is way more picky than a push feed.

We'll eventually be offering bare actions, but as it sits, machining the receiver is our manufacturing bottleneck. All available are going toward complete rifles for the time being. We've got some new automation planned for early 2025 that will more than double our available machining hours, which will help immensely.
 
Joined
May 16, 2021
Messages
1,456
Location
North Texas
3.15" is for the internal box. 308/Creed size rifles will be shipping with a flush 3 round poly, and 5 rnd metal mags (MDT). The poly is 2.85" and the metal are non-binders so they stretch to 2.96". Sorry for the confusion. Finding a 223 DBM with appropriate COAL has proven difficult. Once that's figured out, I'll have to adjust the mag height and bolt stroke for a proper feed cycle. Timing a DBM CRF is way more picky than a push feed.

We'll eventually be offering bare actions, but as it sits, machining the receiver is our manufacturing bottleneck. All available are going toward complete rifles for the time being. We've got some new automation planned for early 2025 that will more than double our available machining hours, which will help immensely.


Would your 308 pattern actions be compatible with the Unknown Munitions DBM allowing 3.15” internal on a DBM?

I know it can be done on a push feed action because my Pierce short action received is running one for a switch barrel 6.5 SAUM/300SAUM setup. Not sure if that would work with a CRF.


Sent from my iPhone using Tapatalk Pro
 

khuber84

WKR
Joined
Jun 6, 2019
Messages
1,727
3.15" is for the internal box. 308/Creed size rifles will be shipping with a flush 3 round poly, and 5 rnd metal mags (MDT). The poly is 2.85" and the metal are non-binders so they stretch to 2.96". Sorry for the confusion. Finding a 223 DBM with appropriate COAL has proven difficult. Once that's figured out, I'll have to adjust the mag height and bolt stroke for a proper feed cycle. Timing a DBM CRF is way more picky than a push feed.

We'll eventually be offering bare actions, but as it sits, machining the receiver is our manufacturing bottleneck. All available are going toward complete rifles for the time being. We've got some new automation planned for early 2025 that will more than double our available machining hours, which will help immensely.
Are you utilizing the SRS/unknown dbm with extra long single stack box for these short mags then?
 

gbflyer

WKR
Joined
Feb 20, 2017
Messages
1,761
I would recommend a bottom metal for the DBM model that does not contain the mag latch inside the trigger guard. They are slimmer and snag free but dangerous as Hell with potential for an AD. Don’t ask me how I know. 🫢
 
Joined
Oct 1, 2013
Messages
904
Location
Northern California
If you were to make proprietary mags/dbm that were all metal, double stack, flush fit, like Sako. I’d be super impressed. Obviously the current availability of detachable mags, at proper length, for hunting is lacking. Having 5 rounds in a flush mag that actually works is a pretty big deal.
 

khuber84

WKR
Joined
Jun 6, 2019
Messages
1,727
If you were to make proprietary mags/dbm that were all metal, double stack, flush fit, like Sako. I’d be super impressed. Obviously the current availability of detachable mags, at proper length, for hunting is lacking. Having 5 rounds in a flush mag that actually works is a pretty big deal.
I'm thinking a 5rd flush fit dssf(dbl stack single feed) is physically impossible, especially with short mags. Now if you go dsdf(double stack double feed) essentially a 5rd aw mag, I think that might be near flush. I'm personally fine with 3rd down in a short mag, or rifle for that matter. I typically drop a 4th into the chamber and decock the bolt shut. Maybe not best idea, but it's never given me a reason to desire to change.
 
Joined
Oct 1, 2013
Messages
904
Location
Northern California
I'm thinking a 5rd flush fit dssf(dbl stack single feed) is physically impossible, especially with short mags. Now if you go dsdf(double stack double feed) essentially a 5rd aw mag, I think that might be near flush. I'm personally fine with 3rd down in a short mag, or rifle for that matter. I typically drop a 4th into the chamber and decock the bolt shut. Maybe not best idea, but it's never given me a reason to desire to change.
Yes basically a hunting style aw mag that holds 5 or even 4. Sakos hold 5 standard rounds.
 

Chris84

FNG
Joined
Jan 25, 2018
Messages
39
Location
WI
3.15" is for the internal box. 308/Creed size rifles will be shipping with a flush 3 round poly, and 5 rnd metal mags (MDT). The poly is 2.85" and the metal are non-binders so they stretch to 2.96". Sorry for the confusion. Finding a 223 DBM with appropriate COAL has proven difficult. Once that's figured out, I'll have to adjust the mag height and bolt stroke for a proper feed cycle. Timing a DBM CRF is way more picky than a push feed.

We'll eventually be offering bare actions, but as it sits, machining the receiver is our manufacturing bottleneck. All available are going toward complete rifles for the time being. We've got some new automation planned for early 2025 that will more than double our available machining hours, which will help immensely.


What length are you looking for for 223?

Accurate Mag .223 mags are easily modded to get enough COAL for my custom .223AI
20241211_194847.jpg
 

Imac45acp

FNG
Joined
Apr 28, 2022
Messages
22
Why not just build your own 223 with the COAL you want to fit your action?
Building our own is always possible, but it's a limited use application. There would have to be some hefty sales projections to even consider the tooling cost. We're also trying to stay away from proprietary mags from a customer experience aspect. AICS can be found nearly anywhere if a replacement is needed, whereas if we went custom, you're limited on sourcing (and price).

Would your 308 pattern actions be compatible with the Unknown Munitions DBM allowing 3.15” internal on a DBM?

I know it can be done on a push feed action because my Pierce short action received is running one for a switch barrel 6.5 SAUM/300SAUM setup. Not sure if that would work with a CRF.


Sent from my iPhone using Tapatalk Pro
The SRS/UM setup is freaking awesome, but as mentioned above, proprietary.

What length are you looking for for 223?

Accurate Mag .223 mags are easily modded to get enough COAL for my custom .223AI
Most of the 223 AICS pattern mags can be modded to stretch out. As long as I can come up with a repeatable, efficient process, this may be the direction taken. I'm not opposed to modifying off the shelf mags to optimize usage in the rifle, as long as the off the shelf will function in a pinch. I.E. we mod them for extended COAL, but a standard works with reduced length.
 
Joined
Mar 27, 2019
Messages
950
Location
Lyon County, NV
Building our own is always possible, but it's a limited use application. There would have to be some hefty sales projections to even consider the tooling cost. We're also trying to stay away from proprietary mags from a customer experience aspect. AICS can be found nearly anywhere if a replacement is needed, whereas if we went custom, you're limited on sourcing (and price).


The SRS/UM setup is freaking awesome, but as mentioned above, proprietary.


Most of the 223 AICS pattern mags can be modded to stretch out. As long as I can come up with a repeatable, efficient process, this may be the direction taken. I'm not opposed to modifying off the shelf mags to optimize usage in the rifle, as long as the off the shelf will function in a pinch. I.E. we mod them for extended COAL, but a standard works with reduced length.

Excited by your project. No criticism here at all, but with mags, I'm sure you already know that the engineering and tooling hurdles are sufficient enough to often warrant outsourcing the specs to a manufacturer for OEM/private label work. I don't think it would be unfair to say that there are significantly more companies out there that can competently do barrels than can competently do magazines. Accurate Mag, MecGar, AI, and others may want the business, even if it is small run. If nothing else, having the conversations would give you an idea of what you'd be looking at for costs, and some may be willing to work out terms. Especially with something like Accurate Mag's stuff, you never know if it might end up being just a small modification to one aspect of the product. This market may be relatively small, but in absolute numbers it may be sufficient to interest some of them.

I can't speak for others here, but I don't have a single mag-fed gun that I don't own at least 5-10 magazines for. Maybe it was coming of age during the Clinton gun ban era, but they matter a lot to me, and I also see them as consumables, if you're training a lot and working them hard. They also better leverage my range time, by loading up before I go. A proprietary mag wouldn't be a deal-breaker, as long as I could get as many as I wanted for $50ish each or less. But COTS options would be nice too.
 

walk2112

Lil-Rokslider
Joined
Oct 22, 2020
Messages
275
No love for the 708 or 7 SAW?
I wondered that as well, an 8ish twist 7-08 or 7 SAW would peak my interest. Such a versatile cartridge class. As I understand these will be pre-fit capable though too, so maybe just a matter of getting another barrel someday.
 
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