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Strangest Wildcat you know anyone having
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 Posted: Mon Mar 16th, 2015 03:06 AM
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221st Post
Rockydog



Joined: Tue Jul 26th, 2005
Location: 160 Miles SW Of The Frozen Tundra, Wisconsin USA
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I know it's not the same as the Gibbs. Just giving you grief. If you stand my 6.5 Gibbs next to a 6.5 AI the photos look just like your 7x57SAI next to a 7X57AI.

I don't have any data. I was looking through the Handloaders Manual of Cartridge Conversions for a cartridge with similar volume.

Unfortunately there are so many errors in the book that it's hard to trust anything you read in there. For example they list a 7mm/308 Durham and a 7mm/308 Winchester (Now known as the 7mm-08) Both are made from the .308 Winchester case. Both have the same length to the base of the shoulder The Durham is slightly straighter in the side wall with a shoulder diameter .015 larger in diameter than the 7mm/08. But the book shows the Durham holding 11.5 more grains of water at 63.87 Grains VS 52.23 for the 7mm-08! Can't be.

RD



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“Those that beat their rifles into plow shares will plow for those who didn’t”. Jefferson

Light hunting rifles; Gravity is permanent, recoil is temporary.Your Choice


 Posted: Mon Mar 16th, 2015 06:50 PM
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222nd Post
shastaboat
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Joined: Fri Mar 28th, 2014
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What case is your 6.5AI based on? 6.5-06AI? I have the same book. "HANDLOADER'S MANUAL OF CARTRIDGE CONVERSIONS" I couldn't agree with you more on errors listed.

Anyway I've got one more test with H4831SC to get to my goal of 3100 fps with 139/140 gr bullet weight. Then it will be doing a ladder on 130 gr bullets or just taking the ending load of H4831 and loading 130 gr bullets. I can't get anymore powder in the case. I may be able to go to 4350 for the 130's but it maxed out with the 139/140 gr bullets before reaching 3100 fps. I got to 3098 fps with Data 85 but accuracy just wasn't there. ES was 77. So far the H4831SC has turned in very good groups <1" for all weight charges. 58 gr gave me 2979. 59 gr gave me a .5" group but the chrono wasn't reading right. (sun angle) pressure was still ok. I've got that load still to chrono and then laddered up 59.5 and 60 gr. I might go shoot this afternoon.



 Posted: Sat Mar 21st, 2015 12:44 PM
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223rd Post
shastaboat
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Well I did my range testing on 59.5 and 60 gr of H4831SC and 139 gr Hornady SP's in my 7x57SAI and frankly I'm disappointed in my results. Accuracy was still good but the velocity I thought I'd get with the increase in case capacity over the standard 7x57AI hasn't quite given me what I'm looking for. I've gotten the velocity with Data 85 but with poor accuracy. I'm going to try H450 next as I was able to get excellent accuracy with XMR4350 but not the velocity I'm seeking over the 7x57AI. (100 fps)

At this point I can't beat the accuracy and velocity I'm getting with the standard 7x57AI in a barrel that is 1/2" shorter. I guess it just goes to show you that every weapon is different. Both rifles shoot less than 1" groups but I was hoping to pick up 100 fps accurately with the 7x57SAI. Hasn't happened yet.

Last edited on Sat Mar 21st, 2015 12:49 PM by shastaboat



 Posted: Sat Mar 21st, 2015 05:35 PM
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224th Post
Montana Guy
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Speaking of 6.5x06. I built one using A Square reamer, Shilen Crom molly 1 in 8. Terrible shooter. Trying to push Sierra 142 Matchking from 2850 fps on up. Very discouraging so tried 140 Berger Hybrids, 4 inch group, laupua 139 3 inch group, nosler 140 custom comp better at least moa.
Took barrel off sent back to Shilen they said it was well within factory specs sent it back. Started again 5 different powders again, different seating depths, you name it just barely moa on some groups lots of 3 touching 2 outside 1/2 inch.
my son started educating me on fast twists for 6.5 bullets. Made up 11 loads, 3 different powders, stayed with Sierra 142 Matchking all seated at
3.315. Waited for good conditions, found 8 groups sub MOA, of those 2 at
0.517 inches. The best info was speed! I slowed down starting at 2700 fps headed to 2800 +a bit over. I did this by going up 1/2 grain increments at a time. Best groups all in the speed of 2735 to 2760 fps.
The three groups clearly opened up as the speed increased.
I guess this goes to show speed isnt the best equalizer in the accuracy equation. Good luck on all your projects out there.



 Posted: Mon Dec 7th, 2015 01:47 AM
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225th Post
johnr47
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Joined: Sat Dec 5th, 2015
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I have a Savage 110 action with a Hart SS barrel in (7mm int), I know this doesn't sound strange but this was 1 of 3 guns built by Savage for a new cartridge which was a 250-3000 necked up to 7mm. The (7mm int) is what is stamped on the barrel and as far as I know is no relation to the current 7mm int from a 30-30 case. It is very accurate.



 Posted: Thu Dec 31st, 2015 12:58 PM
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226th Post
gemihur
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Joined: Thu Aug 8th, 2013
Location: Star City Of The South Roanoke, Virginia USA
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My favorite chambering is:: 308 Bellm, today,6.8 SPC yesterday, maybe tomorrow 375 JDJ ? ...
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Last year I stumbled upon a 358 ALPO!
Turns out, it's the name given by it's maker for client's moniker. Chamber is .358X444 Improved. Dies are shortened 35 Whelen Imp. Shoots like a bear!
:bandito:



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 Posted: Wed Feb 17th, 2016 11:12 PM
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227th Post
countryboy
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A buddy of mine sent a dummy round to a wildcat he messes with and thought you guys would be interested. It is the 9.3x64 Brenneke case necked to 6.5 mm with the wby radius shoulder. It splits the difference between the 6.5-06 and the .264 win mag very nicely while still fitting a standard action



 Posted: Tue Feb 23rd, 2016 04:34 AM
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228th Post
aussiegunnut
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Joined: Sun Feb 14th, 2016
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Bob the nailer wrote:
Mauser GEW M98, with a 40X target scope. Shot 1/2" group at 250yards that day, yes it was cold!

22-284 winchester


Hi Bob,
That stock of yours looks like a wizard carved it! Could we please see a few more images of the rifle?

Cheers
AGN



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Blaser R8 22/250 and 6.5x284
Pierce 7mm Practical
Sako TRG 42 .338LM


 Posted: Tue Feb 23rd, 2016 12:43 PM
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229th Post
scpaul
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Shasta, I've been working on some loads for the 7 mm Valkyrie that you've helped me with by giving me info and opinions. I have come up with some loads that really work. At the very end of out deer season I finally went hunting. I shot a doe around 90 lbs. with a Hornady 139 gr. A-max or SST (have to check notes) at 250 to 300 yds. (it was dark by this time) and she had become just a pile of deer.

The last range work that I did the week before said that I was getting 4325 Fps. 15 ft. (the length of the cable) from the muzzle. Yes, I did double check it, and it was measured with a new Cauldwell chrono. I don't have any pressure testing equipment but, by the old pressure indicators, flat primers, case head expansion, etc. I haven't had any signs of over-pressure. The ones that did show pressure signs were disposed of or marked as such.

If you want some of the recipes that I've come up with E-mail me. I realize that mine is bigger than yours (alright! get your heads out of the gutter) but, I think that you could scale the loads back and work your way back up.

neese.paul@yahoo.com Have a good one Paul



 Posted: Thu Feb 25th, 2016 02:12 AM
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230th Post
olyeller
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Joined: Sun Nov 22nd, 2009
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scpaul, are you talking about the one based on 6.5X47 case?



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 Posted: Thu Feb 25th, 2016 02:51 PM
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231st Post
scpaul
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No, It's the one based off of a 300 Win. Mag. case. There wasn't any info other than one that was based on the 300 Wby. so I had to use proven loads from the manuals. I started with the lower power 7mm Rem. Mag. loads and work them up. Next I did the same with a little larger case volume 7mm. It was one of the older 7mm mag. (by their spec's. of the day) can't remember which one, I've got it in my notes if you're interested. Then I stepped up to the lower power 7 STW loads and worked my way up with them.

I checked my case volume after case sizing and fire forming is between 90.? to 93.3 grains of H2O depending on the brand of brass.

When a load gets this far I do my powder increases .2 gr. at a time. I know that there's going to be some people that won't agree with my methods for any number of reasons but, so far neither my rifle or myself have received any damage.

I'm probably over doing it but, now I don't go as far down in power. I do still work up loads by going to the manuals and working the loads from lower power rounds.

There's alot more to this than I said but, I hit the high spots.

Before I did the build I strapped the rifle down to a pick-nick table in a rifle rest with bunji cords, lots of bunji cords. I had loaded 3 rounds to higher pressure than I'd ever try to shoot (from the 7mm Ultra recipies and fired them from behind a BIG tree 25 feet away with a string.I'd already hand cut the 7mm RM to the 7mm Valkyrie chamber.

It now wears a 30 1/2" barrel thats 1.125" in dia. There's NO recoil.

Hope that I covered everything, afterall, I've been working on it over 2 years. Everything that could slow it down happened. It would sound like something from "The Keystone Cops".

Anything else, just ask, Paul :banghead:

P.S. I just noticed where I put this. Sorry, move it if necessary.

Last edited on Thu Feb 25th, 2016 02:58 PM by scpaul



 Posted: Fri Mar 4th, 2016 12:03 PM
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232nd Post
olyeller
Master Handloader


Joined: Sun Nov 22nd, 2009
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Keystone Cops. Now there's a memory:lol:

Wonder how many on HB don't know who/what they were. You're dating yourself Paul.:sofa:



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He who knows not and knows not that he knows not, is a fool.
He who knows not and knows he knows not is wise.


 Posted: Fri Mar 4th, 2016 05:25 PM
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233rd Post
Big Joe
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Joined: Thu Jul 4th, 2013
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My favorite chambering is:: 222 and 308 in rifles 44mag and 45acp in handguns ...
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Paul doesn't exaggerate on stuff getting in the way. I talked to him about the Valkyrie a few years back. Got started collecting and poof!! the backorder bug bit me. While waiting on that to get fixed I was offered a semi finished rifle in Lazzeroni 7.21 Firebird. Well, I cant say I saved any money (brass is proprietary) only time, but it shoots really well. The barrel is 30in but its a varmint taper but it does not kick either.

Last edited on Fri Mar 4th, 2016 05:26 PM by Big Joe



 Posted: Fri Mar 4th, 2016 06:27 PM
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234th Post
scpaul
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Joined: Tue Jan 21st, 2014
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Don't use language like "Backorder" here !!!!! This is a public forum. :groaner:



 Posted: Mon Jul 4th, 2016 11:32 PM
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235th Post
okiedave
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Joined: Sat Jul 2nd, 2016
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I am in possession of it ! A .17 A&M so far no one can tell me what it needs it doesn't say Bee or Javalina just .17 A&M on the barrel of a Hepburn



 Posted: Tue Jul 5th, 2016 02:38 AM
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236th Post
Rockydog



Joined: Tue Jul 26th, 2005
Location: 160 Miles SW Of The Frozen Tundra, Wisconsin USA
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Okie Dave, Have you done a chamber cast with Cerro Safe? http://www.midwayusa.com/product/462291/baker-chamber-casting-alloy-1-2-lb
Click on the video link in the description and Larry will even show you how to do it At about 3:30 in the video.

The 17 Bee or a 17 Ackley Bee would have a cut out for the case rim at the rear of the chamber as the 218 Bee is a rimmed case.

A 17 Javalina (AKA the 17 Hempalina) is made from a .222 or .223 case and will not have a cut out for the rim.

I would assume that seeing as it's a Hepburn that it would be a rimmed case. But I've been wrong before...

There are several other rimmed 17s. Including a 17 Ackley Hornet, a 17 Bumblebee (on a shortened 218 Bee case), and the 17/225 Winchester.

Good luck on your search. Try finding a copy of Cartridges of the World or the Handloaders Manual of Cartridge Conversions. Run a Cerro safe cast and compare measurements. RD



____________________
“Those that beat their rifles into plow shares will plow for those who didn’t”. Jefferson

Light hunting rifles; Gravity is permanent, recoil is temporary.Your Choice


 Posted: Mon Jul 11th, 2016 06:55 AM
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237th Post
okiedave
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Joined: Sat Jul 2nd, 2016
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Has the one on the right been approved by NASA?

Last edited on Mon Jul 11th, 2016 07:25 AM by okiedave



 Posted: Tue Jan 3rd, 2017 09:19 PM
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238th Post
Norge
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Boy, I hate to let my mouth overload my butt, but....At present I have a couple of 6.5x54mm Mannlicher-Shoenauers (M-S) that have rough/eroded bores. But, I really like them but they are too difficult/expensive to re-barrel, however I can have them re-bored to .270 for half the cost or a barrel. The fellow will also re-size the neck of the chamber. The resulting cartridge will be a 6.8x54...??? Should recoil a lot less then the .270 Win, but have close to 6.5 Swede energies. Thinking a great starter round (deer-antelope) for a couple of grand-daughters.



 Posted: Wed Mar 8th, 2017 09:58 PM
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239th Post
jshepherd61
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My favorite chambering is:: 7mm STW, 26 NOSLER, 223 Rem, 6.5mm-300RUM
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Built and tested a 5.56-300RUM a couple years back but couldn't get it to preform and it was a barrel ripper pushing 4,100 fps, burned the polymer tips off the the Hornady 55gr V-Max at about 200 yds. moved up to 62gr FMJBT and still wouldn't stabilize even with a 32" bartlein barrel.

Last edited on Wed Mar 8th, 2017 09:59 PM by jshepherd61



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Always be aware of what you're holding!!!


 Posted: Tue Mar 28th, 2017 02:39 PM
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240th Post
zzrguy
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Don't know if its a wildcat but i build a 45Raptor that a AR10 with a Raptor barrel and 308 BCG and uses a cut down 308 case and 460S&W mag data. Sweet Jesus that thing is fun the looks you get when you let one off the chain for the first time... :)



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