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  • Ballistics in Scotland's Avatar
    09-19-2017, 12:17 PM
    There might be very slightly better accuracy with match-grade standard velocity ammunition. But the 39a, or the earlier 39 with an HS serial prefix, don't actually need it. There used to be a weakness of the locking projection on the bolt, which...
    15 replies | 277 view(s)
  • Ballistics in Scotland's Avatar
    09-19-2017, 06:11 AM
    at The Winchester 1892 also has those two lugs in the side of the bolt. It is the 1894 that went over to the single lug behind the bolt, pivoted in a hinged floorplate, in order to permit longer caveartridges in a small action, and gave up a little...
    7 replies | 273 view(s)
  • Ballistics in Scotland's Avatar
    09-18-2017, 11:07 AM
    They are beautifully made rifles, and while the Swiss might have done better by waiting a few development-packed years before ordering, they were desperately pressed by the need to make superior weapons technology cancel out a small population....
    23 replies | 371 view(s)
  • Ballistics in Scotland's Avatar
    09-18-2017, 05:24 AM
    Mine too, although it must be admitted that it is clumsier in the hand. It always surprises me that nobody thought of putting well protected aperture sights on a military rifle before the British P13, which didn't make production when some idiot...
    42 replies | 1036 view(s)
  • Ballistics in Scotland's Avatar
    09-18-2017, 05:12 AM
    I wonder how the 1911 would have been worse for a beavertail grip safety, which makes it so much more comfortable for many people to shoot? The arms industry us almost unique in the way people of different nationalities and backgrounds...
    42 replies | 1036 view(s)
  • Ballistics in Scotland's Avatar
    09-18-2017, 04:19 AM
    z Well, yes... You have to consider what might be the next method you try, and I wouldn't want it to be heat after an olive oil and beeswax mix. A split and jammed wooden rod can often be charred and shrunk with less heat than will melt lead,...
    36 replies | 1077 view(s)
  • Ballistics in Scotland's Avatar
    09-17-2017, 04:14 PM
    I don't know anyone personally who has bevelled the muzzles, but it sounds convincing. I would start with a visually very slight bevel. I don't believe it would be as harmful as it would be with an elongated, flat-based rifle bullet, for which read...
    14 replies | 654 view(s)
  • Ballistics in Scotland's Avatar
    09-17-2017, 01:58 PM
    It looks as if it might have broken because it encountered case-hardening on the way out. It appears thicker where the hole isn't square to the hole axis. I have some copper wire which is a tight fit ina tapping hole for 6-48 screws, and I think...
    26 replies | 974 view(s)
  • Ballistics in Scotland's Avatar
    09-16-2017, 04:30 AM
    You could file teeth on a piece of 9/16in metal tubing and use it by hand like a holesaw. K&S brass tubing, available in modelmaking shops or on eBay, is hard enough and won't scratch the bore. It comes in 1ft. length, but can be epoxied onto a...
    36 replies | 1077 view(s)
  • Ballistics in Scotland's Avatar
    09-16-2017, 04:17 AM
    Ball guns - or any slug gun - are liable to make groups a whole lot more than twice as big at eighty yards as at forty. Yesterday, while walking my dog and picking blackberries, I passed little noises in the undergrowth just a few feet away which I...
    14 replies | 654 view(s)
  • Ballistics in Scotland's Avatar
    09-15-2017, 06:26 PM
    Somebody has to do it? I suppose you mean that one breechplug has a curved cutout of the unthreaded part, centred on the axis of the opposite bore, so that the second breechplug can be screwed in? We don't ssee pearwood used much in stocks. It...
    19 replies | 613 view(s)
  • Ballistics in Scotland's Avatar
    09-15-2017, 06:13 PM
    You can buy a 5.5mm x 0.5 die from China for about $11 postage paid on eBay. Whatever people say about Chinese thread tooling, it will be amply good for one-time use on a tang screw. 5.5mm is about .2165in., and the external diameter of a Unified...
    25 replies | 705 view(s)
  • Ballistics in Scotland's Avatar
    09-15-2017, 05:55 AM
    That sounds very good. If it is a double you could have one continuous thread for those and the screw that holds the breechplugs together. If it is a it is desirable to avoid any little spaces where the tap tapers. I believe I would use an...
    19 replies | 613 view(s)
  • Ballistics in Scotland's Avatar
    09-15-2017, 05:26 AM
    It might be that it was thought to be desirable for the two parts of the firing-pin to be of different steels, or in a different state of hardness. In some rifles a firing-pin tip harder than the bolt allows the firing-pin protrusion to lengthen. I...
    42 replies | 1036 view(s)
  • Ballistics in Scotland's Avatar
    09-14-2017, 02:44 PM
    This is the point, really, and it could be similarly comparerigid with variours others. But if the brass stays in production, or if you are prepared to pay for and keep a large quantity, it won't be any worse. You won't save any money by buying a...
    9 replies | 258 view(s)
  • Ballistics in Scotland's Avatar
    09-14-2017, 02:28 PM
    I knew some Irish Whelens that used the whale version, and the character Sperm-whale Whelen in Joseph Wambaugh's "The Choirboys" would lose some point if nobody did. The Irish can certainly handle the difference between wh and w. Confusing those...
    28 replies | 814 view(s)
  • Ballistics in Scotland's Avatar
    09-14-2017, 02:15 PM
    One round? If the slide contacts and presses down the round after the one it is chambering, it may soften its forward movement. Next step, if you think it rates a next step, would be to remove or tie back the hammer, and see if it slamfires due to...
    42 replies | 1604 view(s)
  • Ballistics in Scotland's Avatar
    09-13-2017, 02:12 PM
    Original flintlocks sometimes had a gold or platinum lined touchhole, a bit smaller than the disc which sometimes surrounds a much smaller vent (entirely pointless in my opinion) in a percussion. If you were building from scratch it wouldn't be...
    19 replies | 613 view(s)
  • Ballistics in Scotland's Avatar
    09-13-2017, 02:04 PM
    Gas is almost perfectly elastic, so like the spring in your ballpoint pen which can catapult itself across the room, it can acquire far greater than bullet velocity.
    42 replies | 1604 view(s)
  • Ballistics in Scotland's Avatar
    09-13-2017, 06:12 AM
    People have identified two of the problems. Some stainless steels are magnetic and others aren't. I don't have any stainless guns, or much else of all that confounded modernity that is around nowadays. But I have a stainless investment casting on my...
    33 replies | 1123 view(s)
  • Ballistics in Scotland's Avatar
    09-13-2017, 05:41 AM
    In the UK people used to waterproof a cap with soft rubber tubing, in the days when it was called bicycle valve tubing. (They modernised the valves about fifty years ago.) If you do get caught with revolver nipples undersized for the only caps you...
    42 replies | 1604 view(s)
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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