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Heym SR 21

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About the Heym

HEYM was founded in 1865, in Suhl, Germany, by Friedrich Wilhelm Heym. Throughout its history, the company has encountered many hardships. These include economic crises, the Nazi regime, and the post-WW II occupation of Germany. Consequently, it has changed its location more than once. Despite that, the Heym brand remains deeply respected and its guns widely admired.

As early as 1891, HEYM manufactured and patented the first hammerless drilling, a three-barreled hunting rifle with three triggers and three hammers on the same axis. Afterwards, the company began to expand, producing drillings, shotguns, and over and under rifle-shotgun combinations. They predominantly exported their products to Russia and the USA. In 1920, the company began producing Anson & Deeley Drillings, double rifle drillings, three trigger drillings, double rifles, and rifle shotgun combination guns.

After World War II, HEYM made a fresh start in the American part of divided Germany. There, the company manufactured products such as cuckoo clocks, slide rules, and spinning wheels since the ownership and making of guns were not allowed. HEYM restored its primary activity in 1952 when the revised laws again allowed the ownership and making of certain hunting and sporting guns.

In 1998, the owner of the company became Thomas Wolkmann. The company's name was first changed to HEYM Waffenfabrik GmbH (Limited), and then in 2007 to the present name, HEYM AG.

Heym SR 21 Rifle

HEYM's firearms are hand-made and well-known for their exquisite quality. HEYM introduced SR 21 in 2001 as a successor to SR 20. The rifle boasts a solid action body, almost-fully shrouded bolt, wooden bolt handle, and removable magazine. Its push-fed bolt action with a 60° bolt lift runs exceptionally smoothly. The bolt is fluted, providing a very smooth operation, with a three-position safety catch mounted on the bolt shroud. Compared with its predecessor, SR 21 has three instead of two locking lugs on the bolt. The three lugs system reduces the bolt lift, making the action operation faster and bolt handle unhindered by a low-mounted rifle scope. The lengths of the bolt and mounting surface are the same regardless of the caliber.

Heym SR 21

Figure 1: Source: https://www.gunfinder.de/produkte/heym-sr-21

Heym SR 21 rifle comes in seven variations:

Classic
Classic Keiler
Classic Concord
Super Classic
Premium
Royal
Grand Royal

Heym SR 21 rifle is chambered for:

Medium Caliber

.22-250 Rem.
.243 Win.
.25-06 Rem.
.270 Win.
.30-06 Spr.
.30-06 AI
.308 Win.
6.5x55 SE
6.5x64 Brenneke
7x57
7x64
8x57 JS
8x64 S
8.5x63 Brenneke
9.3x62

Magnum Caliber

.270 WSM
.300 Win. Mag.
.300 WSM
.338 Win. Mag.
.375 Ruger
6.5x68
7mm Rem. Mag.
8x68 S

Mini Caliber (Only right hand)

.222 Rem.
.223 Rem.

The mounting surface on the receiver is rounded, with 2 mounting holes at the front mounting surface and 2 mounting holes at the rear mounting surface. The front mounting surface is higher than the rear mounting surface.

Heym SR 21

Figure 2: Source: https://bradfordstalker.co.uk/heym-model-sr-21-allround/

Heym SR 21

Figure 3

A: 21.9 mm

B: 111 mm

C: 12.8 mm

BHU: 1.5 mm

Ø: 6-48

R1: R15

R2: R16.5

Which Rifles Have Interchangeable Mounts

One-piece mounts

The necessary condition for rifles to have one-piece mounts interchangeable is that the mounting surfaces of these rifles match in every dimension, but no other rifle has the same receiver dimension as the SR 21.

Two-piece mounts

For two-piece mounts to be interchangeable, the mounting surfaces of the rifles must match in every dimension, except the action length (dimension B in the image above), which can vary. The only case of a rifle which has interchangeable mounts with SR 21 is Heym’s newer model SR 30.

Our recommendation for mounts

Fixed mounts

MAK is the only company that produces fixed mounts for the SR 21, but these MAKfix rings are well made, so this choice is a no-brainer for someone who wants quality fixed mounts.

Detachable repeatable mounts

If one prefers to have a detachable repeatable mount, the most popular group of these kind of mounts are pivot mounts and ERAMATIC Pivot mount of the company Recknagel is a good choice of a pivot mount for SR 21.

Picatinny rails

A perfect fit for this rifle would be a Picatinny rail from the well-established EAW company.

Help us build our riflescope mounts database

If you happen to own this or any other rifle, we would appreciate it if you could help us expand our database by sending us some photos of the rifle receiver (the bare mounting surface of the rifle without the mounts installed). For your help, our company offers a fair return in terms of practical rewards.

Please send us an email for more information. You can contact us here: info@optics-trade.eu

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Heym SR 21

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About the Heym

Heym SR 21 Rifle