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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

Rolf
.333 member

Reged: 26/02/07
Posts: 402
Loc: Germany, Bavaria

Re: 510 Wells Build Questions
08/02/10 10:59 PM

Cameron,
Gentlemen,

please find below the measured dimensions and information about my Heym Expres in .500 A-Square.

best regards
Rolf

Heym Express rifle

The rifle was aquired in 1991.
All metal parts steel, exterieur parts bead blasted and parkerized.

caliber: .500 A-Square
total length: 116 cm
total weight: 4,6 kg
system: Mauser 98 Magnum (improved, new production of 1990)
controlled round feed, firing pin assembly consists of two parts: a spring tension loaded steel rod for transmitting the strike and the real firing pin; (an additional firing pin is stored in the chamber in the pistol grip)

safety: horizontal 3 position safety, blocking the firing pin
standard trigger, letoff at ca. 1200 grams, crisp

barrel: 610mm / ca. 24”, no muzzle break nor mangna-port
twist: 254 mm = 1 : 10”

barrel dimensions: dia. 31,0mm at the system, cylindrical for 35mm length from system interface toward the muzzle, then tapering to muzzle dia. 21,5mm

magzine box: milled magazine box, capacity 4 cartridges in two rows
inner length 96,5mm, with milled cartridge shoulder stop
floorplate to open with a latch in the trigger guard

sights: system with two flat areas on the upper side, each prepared with 2 threaded bore holes for telescopic sight mount (not used at my rifle), all holes closed with headless screws
front sight: white round front sight, dia 4,0mm, massive steel part
rear sight: massive steel, one standing shallow express leaf marked “50m”,
two folding leafes marked “100m” and “200m”,centerline engraved
distance from rear sight to front sight: 420mm

strap fixing: steel ring over barrel, soldered to barrel; and steel screw in stock

wood: plain walnut stock, enforced with glass bedding and two crossbolts,
rear end of stock covered with pachmayer recoil pad, ca. 43mm wide

balance point: at the interface between barrel and system (rifle unloaded)

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Subject	Posted by	Posted on
510 Wells Build Questions	hansol	25/01/10 04:57 PM
Re: 510 Wells Build Questions	450_Ackley	25/01/10 05:18 PM
Re: 510 Wells Build Questions	Altamaha	26/01/10 12:37 PM
Re: 510 Wells Build Questions	hansol	26/01/10 01:35 PM
Re: 510 Wells Build Questions	Altamaha	27/01/10 04:23 AM
Re: 510 Wells Build Questions	hansol	30/01/10 09:49 AM
Re: 510 Wells Build Questions	Altamaha	30/01/10 02:21 PM
Re: 510 Wells Build Questions	450_Ackley	30/01/10 02:43 PM
Re: 510 Wells Build Questions	500Nitro	30/01/10 03:01 PM
Re: 510 Wells Build Questions	xausa	30/01/10 05:30 PM
Re: 510 Wells Build Questions	Altamaha	01/02/10 04:18 PM
Re: 510 Wells Build Questions	Altamaha	02/02/10 07:38 AM
Re: 510 Wells Build Questions	hansol	02/02/10 08:31 AM
Re: 510 Wells Build Questions	Altamaha	02/02/10 09:22 AM
Re: 510 Wells Build Questions	Altamaha	02/02/10 02:04 PM
Re: 510 Wells Build Questions	xausa	02/02/10 11:44 PM
Re: 510 Wells Build Questions	Altamaha	03/02/10 02:24 AM
Re: 510 Wells Build Questions	Rolf	03/02/10 11:51 PM
Re: 510 Wells Build Questions	Rolf	08/02/10 10:59 PM
Re: 510 Wells Build Questions	hansol	09/02/10 04:41 PM
Re: 510 Wells Build Questions	Rolf	09/02/10 09:50 PM
Re: 510 Wells Build Questions	Paul	10/02/10 12:01 AM
Re: 510 Wells Build Questions	xausa	10/02/10 12:28 AM
Re: 510 Wells Build Questions	Paul	10/02/10 06:38 PM
Re: 510 Wells Build Questions	hansol	11/02/10 10:15 AM
Re: 510 Wells Build Questions	hansol	03/02/10 07:33 PM
Re: 510 Wells Build Questions	Rolf	02/02/10 10:16 PM
Re: 510 Wells Build Questions	hansol	30/01/10 06:04 PM
Re: 510 Wells Build Questions	Homer	30/01/10 07:19 PM
Re: 510 Wells Build Questions	Altamaha	31/01/10 03:25 AM
Re: 510 Wells Build Questions	450_Ackley	31/01/10 08:37 AM
Re: 510 Wells Build Questions	chuck375	31/01/10 10:23 AM
Re: 510 Wells Build Questions	Altamaha	01/02/10 02:56 PM
Re: 510 Wells Build Questions	chuck375	01/02/10 03:19 PM
Re: 510 Wells Build Questions	Altamaha	01/02/10 03:23 PM
Re: 510 Wells Build Questions	Altamaha	01/02/10 02:47 PM
Re: 510 Wells Build Questions	500grains	31/01/10 04:43 AM
Re: 510 Wells Build Questions	Altamaha	31/01/10 06:42 AM
Re: 510 Wells Build Questions	500Nitro	30/01/10 09:50 AM
Re: 510 Wells Build Questions	hansol	26/01/10 02:32 AM
Re: 510 Wells Build Questions	450_Ackley	26/01/10 08:31 AM
Re: 510 Wells Build Questions	Altamaha	26/01/10 09:41 AM

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