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Search took 0.01 seconds. Search: Posts Made By: kurtz
Forum: Other Subsonic Topics 01-14-2013, 04:30 PM
Replies: 0
Views: 7,430
Posted By kurtz
F&D Defense FD338 and FD458 sub-sonic 600gr

Over the last year or so I was given the rare and humbling opportunity by F&D Defense to be an “inside” witness through the development and design process of a couple of the finest weapon systems...
Forum: 300 Whisper Rifles and Pistols 09-08-2011, 09:29 PM
Replies: 7
Views: 1,962
Posted By kurtz
This is a 11" with mid-length handguards and a...

This is a 11" with mid-length handguards and a carbine gas system, but you get the idea...I just used a .850 gas block to leave a little bit of a shoulder for the FSB and handguard cup....perm...
Forum: Other Subsonic Topics 01-24-2011, 09:30 PM
Replies: 9
Views: 4,269
Posted By kurtz
I've only shot the .358 ARk out of a 10.5"...

I've only shot the .358 ARk out of a 10.5" upper.....I built a couple 16" uppers but they've been sitting here on the bench for over two years un-shot...

10.5"
1:14 twist
225 Barnes X
16gr...
Forum: Other Subsonic Topics 01-23-2011, 02:32 PM
Replies: 9
Views: 4,269
Posted By kurtz
.358 ARk, made from 7.62x39Russian.... Similar...

.358 ARk, made from 7.62x39Russian....
Similar to the 9x39mm, but the .358 is laid out for use in a AR-15.....
The 9x39mm has more case taper and less shoulder....

...
Forum: AR-15 Topics 01-22-2011, 10:48 PM
Replies: 33
Views: 14,915
Posted By kurtz
Bill Wilson of Wilson Combat / Tactical announced...

Bill Wilson of Wilson Combat / Tactical announced today that he is going to manufacture the 7.62x40mm
Forum: AR-15 Topics 01-22-2011, 10:43 PM
Replies: 33
Views: 14,915
Posted By kurtz
I don't generally run anything that heavy,...

I don't generally run anything that heavy, usually 135 to 145 is where I top out....

depending on barrel length I've pushed the 135's up around 2,400fps....
Forum: 300 Whisper Rifles and Pistols 11-19-2010, 07:59 PM
Replies: 8
Views: 1,940
Posted By kurtz
that sucks...:eek: nice job milling if off...

that sucks...:eek:

nice job milling if off though...

what barrel? any idea on the loads?
Forum: Other Rifle Topics 11-06-2010, 11:45 PM
Replies: 3
Views: 3,728
Posted By kurtz
I mostly chase super-sonic stuff.... started...

I mostly chase super-sonic stuff....

started on the .30, .338, and .358 a couple years ago for a few local shooters....then they just sat there...no real interest, probably shoot the
10.5" .358...
Forum: Other Rifle Topics 11-06-2010, 10:36 PM
Replies: 3
Views: 3,728
Posted By kurtz
I call mine the 7mm ARk.....laid out to work in...

I call mine the 7mm ARk.....laid out to work in the AR platform, k for kurz (short) ....shortened slightly to avoid inadvertently chambering a Grendel, not that it would hurt anything, we cross...
Forum: Other Rifle Topics 11-06-2010, 09:55 PM
Replies: 3
Views: 3,728
Posted By kurtz
7mm Grendel / 7mm 7.62x39mm Wildcats

Agreed.....can do another thread?


http://www.quarterbore.net/forums/photopost/data/500/thumbs/7mmARk-web.jpg
Forum: 300 Whisper Rifles and Pistols 11-06-2010, 09:48 PM
Replies: 10
Views: 2,413
Posted By kurtz
Agreed.....can do another thread?

Agreed.....can do another thread?
Forum: 300 Whisper Rifles and Pistols 11-06-2010, 11:57 AM
Replies: 10
Views: 2,413
Posted By kurtz
Sounds familiar :smile: ...

Sounds familiar :smile:
http://www.quarterbore.net/forums/photopost/data/500/thumbs/7mmARk-web.jpg

Redding bushing die opened up works good.....have been using a Hornady 7BR seater

6.5 twist...
Forum: 300 Whisper Rifles and Pistols 10-30-2010, 11:02 AM
Replies: 9
Views: 2,721
Posted By kurtz
PRI $20.00 ...

PRI $20.00

http://www.pri-mounts.com/mm5/merchant.mvc?Screen=PROD&Store_Code=PRI&Product_Code=05-6892&Category_Code=
Forum: 300 Whisper Rifles and Pistols 10-26-2010, 08:31 PM
Replies: 11
Views: 2,683
Posted By kurtz
On the aluminum AR mags I pushed the ribs in...

On the aluminum AR mags I pushed the ribs in about .070" each side, using a wood surround and aluminum press piece was all that was needed and they worked out fine.....no growth or warpage...

I...
Forum: 300 Whisper Rifles and Pistols 10-24-2010, 09:51 AM
Replies: 11
Views: 2,683
Posted By kurtz
got around to pulling both rifles out of the safe...

got around to pulling both rifles out of the safe at the same time....

the .223 mag is .475 wide...

the 7.62x39 mag is .517 wide...
Forum: 300 Whisper Rifles and Pistols 10-23-2010, 12:24 AM
Replies: 11
Views: 2,683
Posted By kurtz
sure, with a correctly made tool and enough...

sure, with a correctly made tool and enough pressure....



the weld shouldn't make a difference, the overlap next to the rib should help serve as a guide...




If I had a bunch of these...
Forum: 300 Whisper Rifles and Pistols 10-22-2010, 03:49 PM
Replies: 11
Views: 2,683
Posted By kurtz
not much holding it in.....I probably wouldn't...

not much holding it in.....I probably wouldn't use it like that, just posted a pic of what it looks like un-modified....

I mill the ribs out of the 223 mags and they work fine....was working on a...
Forum: 300 Whisper Rifles and Pistols 10-21-2010, 06:28 PM
Replies: 11
Views: 2,683
Posted By kurtz
300 Whisper in a un-modified CZ 527 7.62x39mm...

300 Whisper in a un-modified CZ 527 7.62x39mm Magazine....


http://www.quarterbore.net/forums/photopost/data/500/thumbs/300-whisper-web.jpg...
Forum: Other Subsonic Topics 12-01-2009, 09:39 PM
Replies: 13
Views: 8,781
Posted By kurtz
PM returned....I think....sent from phone, not at...

PM returned....I think....sent from phone, not at home...kept logging me out, not sure if it went through
Forum: Other Subsonic Topics 11-28-2009, 11:13 AM
Replies: 13
Views: 8,781
Posted By kurtz
you may consider making one based off the 7.62x39...

you may consider making one based off the 7.62x39 Russian....brass is plentiful......Olympic, DPMS, and Model 1 offer bolts....

I made a .338x39 and also a .358x39.....the cases are blown-out...
Forum: 300 Whisper Rifles and Pistols 11-15-2009, 08:17 PM
Replies: 25
Views: 6,046
Posted By kurtz
SSK..........barrel ported to make most use of...

SSK..........barrel ported to make most use of first expansion chamber, very quiet



http://www.quarterbore.net/forums/photopost/data/535/suppressed-web.jpg
Forum: 300 Whisper Ammo and Reloading 09-28-2009, 06:30 PM
Replies: 2
Views: 1,664
Posted By kurtz
I have several barrels cut with Kiff 300-221...

I have several barrels cut with Kiff 300-221 reamer, mostly on PacNor blanks.....and use JD Jones SSK Hornady dies.....good fit on both bolt action and gas guns....no problems with loading or...
Forum: Other Subsonic Topics 09-21-2009, 02:02 PM
Replies: 18
Views: 5,520
Posted By kurtz
Awsome.....very nice....:nanabang:

Awsome.....very nice....:nanabang:
Forum: 300 Whisper Rifles and Pistols 06-15-2009, 02:40 PM
Replies: 2
Views: 1,995
Posted By kurtz
I have used 2230, but it is pretty slow for the...

I have used 2230, but it is pretty slow for the amount of powder, even out of a 20" barrel....
Standard disclaimer: wildcat reloading data use at own risk
A comparison load:

125 TNT 22gr 2230 =...
Forum: 300 Whisper Ammo and Reloading 04-10-2009, 12:05 AM
Replies: 16
Views: 2,560
Posted By kurtz
Harrell's Precision ...

Harrell's Precision

http://harrellsprec.com/index.php?crn=49&rn=378&action=show_detail

works excellent for pistol and small rifle cartridges, very accurate....It is on the high end for powder...
Showing results 1 to 25 of 135
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