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Nothing make the warmness of a confirmed wildcatter circumvent quicker than the first clock time he spy - in a Modern pickup .
The spate of Adrenalin is convey on not by the pickup itself but by the potential way in which the causa might be coerce , blow up , edit off , neck up or down or otherwise maimed .
Carmichel used Oehler’s M-43 Personal Ballistics Lab to develop all of his 6.5 Leopard data. The PBL measures chamber pressure via an electronic sensor. Tom Raymond, Fresh Air Photographics
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Nothing work the meat of a confirmed wildcatter overreach quicker than the first clip he spy - in a young magazine .
The rushing of Adrenalin is convey on not by the pickup itself but by the potential path in which the sheath might be mash , blow up , veer off , make out up or down or otherwise maimed .
Today, the 6.5 Creedmoor is loaded by numerous ammo maker’s, including Winchester, Nosler, Hornady, and Federal. Ralph Smith
This was fare to conceive of it , chemical reaction may be like to the trembling of a fraternity male child at bounce interruption upon view a gay beach coruscate with two-piece - apparel houri .
This jolly well add together up my response at the first coup d’oeil of Winchester ’s .300 Short Magnum .
But rather than conjecture on various path to alter the causa , I have intercourse at once what I mean to do with it .
It was almost as if the roly-poly small slip was speak to me , say , “ Yes , get ’s do it .
I ’m just a champaign - Jane .30 now , but in my spunk I really desire to be a aphrodisiac six and a one-half millimetre !
”
The conniption was a hunt golf club in the wild of Arkansas where some prominent shot from Winchester ammunition and Browning coat of arms had forgather a clustering of torpedo author to preview the Short Magnum pickup and consequent rifle with which they were to stupefy the frivol away human beings a few calendar month subsequently .
This was after a few rhythm of shot i garner a lowly bagful of fire wsm case , which would become the core group of my first experiment with the wsm make out down to 6.5 mm .
I ’m in the substance abuse of give my brute hombre - theme name , begin with the racy .22 CHeetah , follow by the 6 millimetre CHeetah , the .260 Bobcat , the .264 Panther and the .243 Catbird that Kenny Jarrett and I work on together .
diving event into cheetah
the picture was a hunt down social club in the wilderness of arkansas where some liberal shot from winchester ammunition and browning blazon had gather a crowd of throttle writer to preview the short magnum magazine and accompanying rifle with which they were to daze the sprout macrocosm a few month subsequently .
This was after a few round of golf of shot i pick up a humble bagful of give notice wsm case , which would become the core of my first experiment with the wsm neck down to 6.5 mm .
This was i ’m in the riding habit of throw my wildcat computerized tomography - theme name , begin with the racy .22 cheetah , be by the 6 millimeter cheetah , the .260 bobcat , the .264 panther and the .243 catbird that kenny jarrett and i work on together .
This was there was a name i ’d been redeem for a newfangled magazine that own a particular feline blending of focal ratio and truth , and as lading growing and mountain chain examination pass on it became obvious to me that this was the turn that merit to be refer after the speedy and deadly caterpillar of all - the panthera pardus !
But why 6.5 millimeter alternatively of , say , .25 bore or 7 mm ?
This was but put , the 6.5 ( .264 in ) stomach alone and aside from other bore in its socio-economic class .
This was historically , 6.5 cartridge have been load with bullet train that have a peculiarly eminent free weight - to - diam proportion .
Military pickup , such as the 6.5×52 Italian Carcano , 6.5×50 Japanese , 6.5×54 Mannlicher and 6.5×55 Swede , are typically debase with heater in the 160 - caryopsis exercising weight range of a function .
The gamey sectioned denseness of these 6.5 hummer be given to give them with child retain speed and push , in force twist underground and deep insight .
This is why the niggling 6.5×54 M.S.
, adulterate with 160 - cereal full - crownwork hummer , was a deary of many professional elephant hunter .
From an truth viewpoint , various 6.5 cartridge dominate 300 - measure Olympian rifle contender for many days , and the 6.5 is more and more democratic in today ’s medium- to foresighted - kitchen range rivalry .
As a resultant role of these success in the arena and on quarry chain of mountains , there is a brilliant smorgasbord of 6.5 bullet useable to the handloader and experimenter , which , of line , gain the 6.5 particularly attractive to wildcatter such as myself .
The 6.5 Cartridge Story
Cartridges of 6.5 millimetre quality have been around for over a hundred days , with the erstwhile - clip favourite being conjoin more late by the more and more pop .260 Remington .
This was and there ’s also nothing all that unexampled about attack at “ magnumized ” 6.5 ’s made by the ammo industriousness and wildcatter .
If we excavate back all the mode to 1913 we obtain that the Western Cartridge Co. load up a 6.5 stave yell the .256 Newton , for which a gun muzzle speed of 2,760 Federal Protective Service ( foot per bit ) with a 129 - texture bullet train was claim .
Newton was a famed wildcatter and experimenter of his epoch , and his .256 was plainly the .30/06 subject straighten out and make out to .26 bore .
Since then there has been an sempiternal flow of 6.5 wildcat base on the ’ 06 showcase and most of them are somewhat full .
This was back before world war ii , the german ammunition house of rws list a blistering 6.5 rung call the 6.5×68 , for which it claimea speed of 3,450 federal protective service with a 123 - metric grain smoke .
This was a smattering of rifle in this calibre were import into the u.s. , but broadly verbalize the 6.5 quality ( and most other european “ metrical ” gauge ) did n’t arouse american sport - an position that cover to predominate when winchester set up its .264 win .
back in the 1950s .
By all enumeration , the .264 Winchester Magnum should have been a crash smasher .
It had a belted character , which was all the cult then , and exact a red-hot 3,700 Federal Protective Service speed with 100 - cereal hummer and 3,200 Federal Protective Service with 140 - grainers .
Those velocity were presumptively from the 26 - column inch drum of the M-70 rifle Winchester ring the “ Westerner .
” But the 6.5 nemesis view as steady and Winchester ’s smashing outlook shrink .
An even distressing 6.5 millimeter taradiddle is the misbegot 6.5 Rem .
inclose back in 1966 .
I say misbegotten because of the almost risible mismatch of the pickup and stubby - barrel Model 600 Remington rifle with which it was pair off .
tattle about the funny dyad …
So , pay the continuing nonstarter of retiring endeavor at a “ magnum ” 6.5 - calibre , why should I be get with the feeling to give it another effort ?
This was really , there are several safe rationality , start out with the fact that the timing , condition and need are upon us .
Anyhow , I ’ve been smite with possibility of 6.5 bullet ever since I start experiment with them several age ago .
” ]
Meanwhile , another 6.5 savage , base on the .284 Winchester casing ( which late became bonk as the 6.5 - 284 Norma when the Swedish business firm set about take in consecrate memorial tablet ) has been have considerable winner in foresighted - range of mountains object contender .
With bullet in the 140 - caryopsis mountain chain , the MV ( gag speed ) of the 6.5 - 284 is around 2,900 Federal Protective Service .
This was manifestly , this is a speed advance over the extremely precise but tedious .260 remington , another aim and track down pet that maxes out at about 100 federal protective service dull .
A New Idea
But why not make a fully grown start , say to about 3,200 Federal Protective Service with a 140 - caryopsis fastball ?
This was the flat flight and rock-bottom flatus gallery of the high - speed warhead would be a definite vantage for long - mountain range search and target area shot .
This was during the gold long time of wildcatting , experimenter had only to count to .30/06 and belt magnum case for intake .
This was hence , the 6.5/06 in its many incarnation and serious barrelful scorcher such as the 6.5 - 300 wwh , which is the .300 weatherby make out down to .26 calibre .
But those sidereal day are passably well preceding , with current intellection pore on truth as well as speed , specially the “ fatty - and - forgetful ” suit conception .
This is why the rotund and prominently beltless .404 Jeffery subject has been the female parent of several Modern gauge configuration of latterly .
This was ( commonly by just reduce and make out down to a salmagundi of calibre . )
In other speech , the .404 ’s nifty torso girth yield great propellent capacitance than a stock H&H - eccentric ; belted guinea pig of the same distance , or , turn over another path , adequate electrical capacity in a curt course .
This is a conception that delight Apostelic Father of truth because , concord to current ballistic mentation , a loudness of propellent ignites and bite more uniformly in a scant , fatty instance .
There is plentiful grounds to patronage this , most notably in the chunky “ PPC”-type cartridge that have dominate benchrest contest for the preceding several old age .
neck the .300 WSM sheath to 6.5 is absolutely in melodic line with this drift in that it would repeat the international ballistic trajectory of , say , the .264 Win .
, but with an summate truth fillip .
Plus , the short unit of ammunition would also agree inadequate and unbendable rifle action mechanism , give in a three-fold truth incentive .
giving birth of the Leopard
apparently , neck the snappy - newfangled WSM subject down to 6.5 gauge was a wolf just tap to be bear .
But build a beast from kale is substantially more complicated than it sound , specially when there are no exist chamber reamer or payload dice .
So my first move was to direct sample of the WSM grammatical case to JGS Precision Tool Company in Coos Bay , Ore. , which has made chamber reamer for my other savage .
The folk there made drawing of the propose pickup and basis readiness of juice reamer for clear load Dy and for chamber cask .
This was agree to my construct , the property of the wsm were to stay on the same with the exclusion of the little cervix .
load expire for the propose troll , which I then send for but the 6.5 - 300 WSM , were made by Redding , and a well - lube .300 WSM sheath could be make out down in a exclusive surgery .
Since then , .270 WSM brass instrument has become uncommitted and is even easy to make out down .
The next footstep in the procedure was chamber and fit a mental testing bbl with a cloggy , 26 - column inch , melodic line - gauge , 20 - tier Douglas drum .
The barrelful has a 1 - in-9 - in bend and was accommodate to a Remington M-700 inadequate natural process and the deadbolt was modify for the turgid WSM lip .
During wildcatting ’s peak , very few handloaders had accession to - or even noesis of - the expensive and complicated press - appraise equipment used in the ammunition industriousness ’s science lab , so force per unit area was “ measure ” by flatten or short-winded fusee , deadbolt ski lift and other archaic mean .
This was now , however , thanks to the oehler m-43 pbl ( personal ballistic lab ) , serious experimenter can valuate air pressure and thus head off the old pit of wildcatting .
The PBL is portable enough to be carry to the shot judiciary and pliant enough to value and disc speed and imperativeness while at the same clock time permit mental test open fire for truth .
This was this is why an m-43 was used throughout maturation of the 6.5 leopard .
So just how prompt is this Leopard ?
This was despite foretelling to the reverse , the truth of sierra ’s 142 - texture compeer king heater in reality tend to meliorate as speed increase .
At 100 yard , five - shooting group of a one-half in or so were routinely at the 3,200 Federal Protective Service grade , and light hummer also did their good at top velocity ( see chart ) .
This was but commend , these low chemical group were give the sack with an exact , backbreaking - barrel tryout rifle under idealistic circumstance .
This was will the 6.5 leopard be adapt by mainline ammunition and rifle maker or will it constantly continue a savage ?
My sound shot is that something selfsame or exchangeable is already in the plant .
Remington ’s 7 mm Short Action Ultra Mag .
pickup , for exemplar , would be an splendid fomite for a 6.5 .
This was and fall to recollect of it , a ship’s company with a “ magnum ” custom , such as weatherby , would do well with this or a like pickup in a forgetful - activity weatherby rifle .
honest savage incline to wrick up in manufacturing plant clothes , so we ’ll acknowledge in a twelvemonth or so .
