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  • john.k's Avatar
    08-09-2018, 02:04 AM
    I did not mention Boulder River Foundry or their products.......... "a rough casting bought at a gun show" and "of uncertain origin".......(supposed/claimed to be from BRF) what I said.......And I would be certain BRF would not be happy at...
    26 replies | 678 view(s)
  • john.k's Avatar
    08-04-2018, 03:06 AM
    I think its more correct use is as a "log splitter" from the days when an average tree was 6 ft across at the stump,and logs were commonly split into usable sizes,called "flitches",before being dragged over the sawpit and cut into boards by two...
    21 replies | 839 view(s)
  • john.k's Avatar
    08-01-2018, 08:11 PM
    I would think your adaptor is oversize in the chamber........the pressure with red dot would have dropped to low levels before the bullet was out of the adaptor,therefore the bore of the rifle will have no effect,provided the bullet exits the barrel.
    16 replies | 547 view(s)
  • john.k's Avatar
    08-01-2018, 04:37 AM
    john.k replied to a thread 56-56 spencer in Special Projects
    Have you converted the block to centrefire?...Or made a new block?
    5 replies | 304 view(s)
  • john.k's Avatar
    07-31-2018, 03:14 AM
    But ,its not right to say 4140 cant be "skin "hardened .......millions of tons is induction hardened to produce a 2-3mm hard case for bucket pins and piston rods every year.....A company I deal with does nothing else than induction hardening 4140...
    26 replies | 678 view(s)
  • john.k's Avatar
    07-31-2018, 02:57 AM
    Yes,contact any heat treater and ask .....hours of carburising time ,and a couple of thou.........4100 doesnt take up ,I dont know why..........if I was to make anything ,I would use 4140 HT..........the few guns Ive made ,the heat...
    26 replies | 678 view(s)
  • john.k's Avatar
    07-31-2018, 02:39 AM
    if you intend to shoot jacketed bullets,there is virtually no saving in reloading,just buy PPU loaded ammo....Otherwise,you will need a pack of 100 projectiles,Ilb bottle of suitable powder,100 primers,and the Lee Loader,and somewhere to...
    29 replies | 516 view(s)
  • john.k's Avatar
    07-30-2018, 10:30 PM
    An original with the bushing stuck tight is going to leak badly.......With the bushing pulled back and carefully fitted,all it needs is a bit of spit every shot on the block face......chawing tobaccy is probably good for that...........But I simply...
    13 replies | 335 view(s)
  • john.k's Avatar
    07-30-2018, 10:22 PM
    I ve seen a number of italian replicas with color/ful hardening effect,but not hard,at all.So its obviously possible to apply the colors with a chemical bath ,like bluing..........Color aside,its also a well known fact that 4100 series wont take up...
    26 replies | 678 view(s)
  • john.k's Avatar
    07-28-2018, 10:50 PM
    They will have a laugh,then start serving you with enforceable notices under the myriad of land use and conservation laws that seem like a great idea to greenies,cause the laws give them controll over land they will never own themselves.
    21 replies | 802 view(s)
  • john.k's Avatar
    07-28-2018, 06:34 PM
    it took me a while to figure it out...just so unexpected..............finally the penny dropped when I couldnt find 11 inches on the tape......who d a thunk it?...........You lay out a $5000 concrete slab,and when poured its noticeably cockeyed.
    30 replies | 1309 view(s)
  • john.k's Avatar
    07-28-2018, 06:22 PM
    OR has a good point about people wanting free beadblasting..........the reason being that pros charge $150=$250 an hour for it.A guy I used to know bought a derelict wet bead plant,fixed it up,and was snowed under with work.(wet is what some call...
    16 replies | 560 view(s)
  • john.k's Avatar
    07-28-2018, 06:37 AM
    if you need to enlarge more,a simple way to make the lap cut bigger without casting intermediate sizes is to roll the lap bullet between two files......this raises a knurl somewhat over the cast diameter.....Not mine....a very old idea.
    14 replies | 460 view(s)
  • john.k's Avatar
    07-23-2018, 03:07 AM
    Years ago I was given a very nice tape of the big 100 yard ones in a leather case with a brass folding handle.I used it for a few setouts.......and lots of snide comments...........finally figured it out.........the tape is in yards...
    30 replies | 1309 view(s)
  • john.k's Avatar
    07-22-2018, 09:07 PM
    Simple job for a hobby machinist.....
    4 replies | 190 view(s)
  • john.k's Avatar
    07-22-2018, 09:05 PM
    The grit wont get into confined spaces and pockets,due to a blastback effect and buildup....I used to do estimating for an industrial blaster,and I was always very wary of plastic coatings.........some take inordinate amounts of time to remove with...
    16 replies | 560 view(s)
  • john.k's Avatar
    07-20-2018, 08:01 PM
    Real high grade safes use 12mm austenitic manganese steel/surfaced with a stainless 316 layer outer shell,and then a cavity filled with scrap carbide inserts,which chew up abrasive wheels in short order..Ive seen lots of cut safes in the scrap...
    74 replies | 3773 view(s)
  • john.k's Avatar
    07-20-2018, 12:47 AM
    Neatsfoot oil was an old favorite for case forming ,back in the 60s......another favorite was STP engine oil treatment........But nowdays, nothin works any good less it comes in a 2oz bottle for $20.
    30 replies | 884 view(s)
  • john.k's Avatar
    07-20-2018, 12:36 AM
    I cant wait till some of that global warming gets onto my arthritic knees on a cold morning.
    86 replies | 5694 view(s)
  • john.k's Avatar
    07-20-2018, 12:32 AM
    I made my own gunsafe,its very heavy,but a few cutting discs in a 4" grinder can cut a big hole in 3/8 plate,so i dont delude myself.....However it does comply the legal requirement for safe storage........which is what matters to me.
    74 replies | 3773 view(s)
  • john.k's Avatar
    07-19-2018, 01:20 AM
    My question would be these guys actually know anything about making guns,or is it a "niche market startup" with little or unsuitable equiptment,and employing a bunch of eager kids who also know nothing about guns.........the company...
    17 replies | 547 view(s)
  • john.k's Avatar
    07-18-2018, 07:41 PM
    I have sleeved chambers in a number of guns,.....but.....a Marlin is already scary thin at the chamber,the reciever is beyond scary thin,and sleeving would be a risk I would not take ...........further more,all of these small tenon,high pressure...
    17 replies | 414 view(s)
  • john.k's Avatar
    07-18-2018, 02:42 AM
    Global warming is a sho-nuff fact for the millions of eggheads ,geeks and perfessers that get big salaries from taxpayer money for backing up the gloom and doom prophesies of their fellow travellers.............dont disagree with them,or the...
    86 replies | 5694 view(s)
  • john.k's Avatar
    07-17-2018, 10:57 PM
    Simple ,reduce the sharp edge of the claw (carefully) until it clears properly.Sometimes the ring on the bolt is also sprung,and IMHO,there is no more problematic repair on a Mauser than the bolt ring.
    40 replies | 814 view(s)
  • john.k's Avatar
    07-17-2018, 09:09 PM
    While the block being from another rifle is obviously the problem,its too short....or...the reciever is too long.Ive got some commercial made MHs that wont close on a block from an Enfield made rifle,one LSA needed 010 taken from the block,before it...
    56 replies | 16832 view(s)
  • john.k's Avatar
    07-17-2018, 08:46 PM
    A lot of work for a single shot.........the only successful conversion Ive seen,with a magazine feed,is the Sportco one on the smelly MkIII*.........and ive seen these sell in shops for $50,with a scope.
    13 replies | 536 view(s)
  • john.k's Avatar
    07-17-2018, 08:41 PM
    A bulge 1/2" from the rim will be inside the reciever ring,which is very thin where the mag tube is.So maybe the ring is also bulged,making removal of the barrel problematic.....I might investigate the possibility of rechambering for 44-40,which...
    17 replies | 414 view(s)
  • john.k's Avatar
    07-17-2018, 06:46 AM
    Battery powered angle grinders with quality thin discs.............the lowlifes key to anywhere or anything,that aint concrete 1 ft thick.
    74 replies | 3773 view(s)
  • john.k's Avatar
    07-15-2018, 11:36 PM
    A lot of official pictures are now "digitally scanned",which means the cops,(govt) can identify you and access all your data from any picture of your face,even one taken by a cop car going the other way at 60mph,and by a security camera anywhere...
    42 replies | 1381 view(s)
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About john.k

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About john.k
retired mechanic/engineer.
brisbane ,qld,australia


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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