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  • john.k's Avatar
    Today, 08:25 PM
    In fact ,the design of a 308 case is more suited to a 93 than the original mauser case.......the reason being the weak point of the pre 98 actions is the unsupported rim rebate.In the 308 case the base of the case is much strengthened to work safely...
    24 replies | 723 view(s)
  • john.k's Avatar
    Yesterday, 04:31 AM
    john.k replied to a thread Antique Air Rifle in Special Projects
    There used to be plenty of 4 stage 4000 psi compressors about,used by the phone companies for air break switchgear.....I have an eye on an IR, a small ,air cooled unit ,with about a 5hp /3ph motor on it.....I already have a bigger unit ,20 hp,set up...
    17 replies | 1113 view(s)
  • john.k's Avatar
    06-22-2018, 08:53 PM
    john.k replied to a thread Fast food tipping?? in Our Town
    here s something else to ponder.....theres a grease factory nextdoor to me, all the crows have got smart and wont eat the grease laden food,apparently clogs their guts........and the maintenance man there had the gall to complain to me about all the...
    60 replies | 1060 view(s)
  • john.k's Avatar
    06-22-2018, 08:47 PM
    john.k replied to a thread Fast food tipping?? in Our Town
    If you tip on a credit card payment,how do you know the boss aint pocketing the tip.....the guy trying to buy my land to expand his grease factory nextdoor,told me the tips are part of the gross,and the staff get a small weekly bonus ,dependent on...
    60 replies | 1060 view(s)
  • john.k's Avatar
    06-22-2018, 01:42 AM
    john.k replied to a thread Robocalls in Our Town
    I cancelled the house phone because of nuisance callers................now everyone complains I never answer my mobile,and I cant be contacted............I say the mailbox is still nailed to the fence ,last time I looked.
    50 replies | 1379 view(s)
  • john.k's Avatar
    06-22-2018, 01:35 AM
    john.k replied to a thread Firearms magazines in Our Town
    !00%....I get free trade magazines that are far better reading than gun mags that cost heaps.And at least the writers ? for the trade mags may repeat advertisers claims,but they always point out promotional material as such.......unlike the gun mags...
    37 replies | 791 view(s)
  • john.k's Avatar
    06-21-2018, 08:11 PM
    The Marlin square ended lever is a PITA.....many times I thought of cutting and welding on a round end.....my theory is that 150 years ago,men were smaller than today,and hands were smaller too.Winchester used the square ended lever too,so it must...
    19 replies | 445 view(s)
  • john.k's Avatar
    06-16-2018, 11:15 PM
    Here s a little known fact.....just about all nitro explosives/propellants have microdots in them that can be identified from the residue,pinning down manufacturer and batch details.
    24 replies | 690 view(s)
  • john.k's Avatar
    06-16-2018, 11:09 PM
    The PP bullet still has groove marks,but none of the scrapes and cuts that bullets are identified by......but nowdays the cops can lift DNA from fired bullets,and identify powder and primer residue in microgrammes.......and the rifling specs may...
    24 replies | 690 view(s)
  • john.k's Avatar
    06-16-2018, 10:42 PM
    Stuck pull thru s was a very common blowup in a smelly......Some one I know did it using a bit of blanket as a patch,the old dodge with a pullthru was to tie the cord around something ,if it got stuck,and pull the rifle with all your weight.If the...
    29 replies | 5816 view(s)
  • john.k's Avatar
    06-16-2018, 04:11 AM
    I think that M14 is a Chinese barrel let go.....still the Martini action in the pic showed a remarkable resistance to splitting ,mainly because its not possible for a case to let gas go into the reciever......even the extractor cut is a very close...
    29 replies | 5816 view(s)
  • john.k's Avatar
    06-14-2018, 07:15 PM
    Sooner or later ,everyone who uses reduced loads of fast powder in big cases will have a double charge......most times we are lucky ,and the result is only a stuck and deformed case....But IMHO ,a 24gn charge of Unique would be 70-90,000psi...
    29 replies | 5816 view(s)
  • john.k's Avatar
    06-14-2018, 06:59 PM
    Another problem where I was ,is that managers were made criminally liable for workplace injuries and environmental breaches.......the new manager was a complete idiot ,mainly because of the state of the whole operation......the new owners wanted the...
    26 replies | 1058 view(s)
  • john.k's Avatar
    06-14-2018, 04:36 AM
    I had to take time off when my aged mother got out of hospital,the place was so slack that the office never told the boss that I rang to tell them,and the young guys who wanted my job spread the word that I had a heart attack...When I went back,I...
    26 replies | 1058 view(s)
  • john.k's Avatar
    06-14-2018, 04:17 AM
    A double load,24 gns would do it .Loads go about 16gn Unique/175gn cast for 40,000psi,so 24gn would be up there.
    29 replies | 5816 view(s)
  • john.k's Avatar
    06-13-2018, 07:56 PM
    You will also note that the Martini is Belgian,and that the split seems to involve the rearsight base......This was a noted problem.....Quote"The brazing of the sight base spoils the steel in the barrel"...Especially if brass spelter was used...
    29 replies | 5816 view(s)
  • john.k's Avatar
    06-11-2018, 08:08 PM
    Ive often thought that a gunsafe disguised as a bed base,or a setee would be a good way to hide it away.Obviously not so easy to access,but if I had to leave a house unlived in for a period,I would do this.
    22 replies | 7676 view(s)
  • john.k's Avatar
    06-11-2018, 08:01 PM
    john.k replied to a thread How much tractor? in Our Town
    there is nothing wrong with HS,provided its properly specced,as will be anything Kubota......HS does have an hour run limit,about 7000hrs for the smaller quality machines.Look for quality components like Daikin, Sundstrand,Eaton etc.......When HS...
    67 replies | 1635 view(s)
  • john.k's Avatar
    06-11-2018, 04:34 AM
    I dont think the 93 sets back from pressure.....I think its just plain wear....the steel is quite soft and the case hardening is thin.....when the bolts been opened and closed a million or more times,in dusty conditions,the guns is just plain wore...
    24 replies | 723 view(s)
  • john.k's Avatar
    06-11-2018, 04:27 AM
    because of the law here,I store and transport guns with the blocks in a locked ammo box...One day I arrived at a shoot a long way from home,and I had included the wrong blocks.......So I shot with them,one from a Mk4 was good,one was short ,and...
    19 replies | 718 view(s)
  • john.k's Avatar
    06-10-2018, 08:26 PM
    I ve bought a couple of chainsaw sharpeners for around $30-$40......made in China ,of course,but although they aint no precision machine,they work well........maybe you have carbide tipped chain?
    22 replies | 957 view(s)
  • john.k's Avatar
    06-09-2018, 01:58 AM
    john.k replied to a thread an emplyee in Our Town
    Nursing assistance is also a fairly high risk occupation for back injury etc......so I would make sure I was well covered against any claim,statutory or common law........IMHO,anyone who does years of care on the promise of an inheritance is a...
    26 replies | 1068 view(s)
  • john.k's Avatar
    06-08-2018, 08:17 PM
    I have a couple of vehicles that old,with that kind of mileage......I dont think Henry Ford was fibbin when I bought them,cause he said they had zero miles on them.......And I would spend any money to keep them going,cause new diesels are so...
    59 replies | 1624 view(s)
  • john.k's Avatar
    06-08-2018, 07:38 PM
    I have see a similar problem caused by a badly corroded primer ring extending into the firing pin hole,and taking the whole surface where the primer seats against the breech face.....Its a bit difficult to see the breech face on a martini,and damage...
    19 replies | 718 view(s)
  • john.k's Avatar
    06-08-2018, 10:52 AM
    both magnesium and zinc ignite and burn quietly,spectacular,but not dangerous ,in my experience.....When casting brass,overheating can ignite the zinc,but with the availability of cheap thermocouples there should be no problem
    38 replies | 1516 view(s)
  • john.k's Avatar
    06-08-2018, 10:48 AM
    Overpowder wads will ring the chamber.....not hearsay ,have done it.
    19 replies | 665 view(s)
  • john.k's Avatar
    06-08-2018, 10:42 AM
    Dunno about your max loads....when I first got my Marlin,1970s,a load by Elmer Keith was recommended...... 50 some odd grains of 4895 and a 450gn bullet......I regularly shot a 30-06 M17.....the 45-70 load was an eye opener.......I only fired half a...
    33 replies | 1124 view(s)
  • john.k's Avatar
    06-08-2018, 10:21 AM
    With the dovetailed block conversion ,the block was softened at the front,dovetail slot cut,piece inserted and screw staked.....but the block was not rehardened,and is so soft that the extractor damages the front part.The insert is made from a high...
    19 replies | 718 view(s)
  • john.k's Avatar
    06-08-2018, 02:29 AM
    Pure aluminium will pick up silicon from sand,and cans could probably be made to cast a lot easier by experimenting with sand flour,which is available for making investment molds.Ive never tried,because I had large stocks of scrap crankcases and...
    38 replies | 1516 view(s)
  • john.k's Avatar
    06-07-2018, 07:45 PM
    Depends on the primer.....I use both the .217" size and the .250 " and .254" size......needless to say a little modification of the nipple may be required.It helps if you have a lathe.......an indispensable accessory for shooting old guns,IMHO.
    8 replies | 342 view(s)
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About john.k

Basic Information

About john.k
Biography:
retired mechanic/engineer.
Location:
brisbane ,qld,australia
Interests:
shooting,machinery,bikes
Occupation:
retired

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Last Activity
Today 08:31 PM
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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check