Blaser D99

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Repeatable Mounts

About the Blaser

Blaser Jagdwaffen GmbH was founded in 1957 by Horst Blaser in Isny im Allgäu, a town in Baden-Württemberg, Germany. It was then taken over in 1986 by the company’s master gunsmith, Gerhart Blenk. Since its beginning, the company has specialized in high-quality hunting rifles. In 1993, Blaser developed a straight-pull bolt-action hunting rifle, Blaser R93, with which they achieved great success in Europe. By 2016 – when the R93 model was discontinued and replaced by Blaser R8 – they had produced more than 200,000 R93 rifles. In 1997, they merged with Sigarms but remained autonomous in their rifle production, and in 1999 they began distribution of their rifles to the USA.

Blaser has revolutionized the way riflescopes are mounted on rifles by introducing a unique mounting system, called the Blaser Saddle. They were one of the first rifle manufacturing companies that introduced a barrel-mounting system. Most Blaser rifles are made with the same barrel mounting surface with four notches. Today, their rifle products include Blaser R8, combination guns, single-shot rifles, and shotguns. They have also started designing and producing binoculars in 2017, and telescopic and reflex sights in the year after that.

Blaser D99 Rifle Review

Blaser D99, introduced in 1999, is a break-barrel drilling rifle that features two shotgun barrels and a rifle barrel. It features two triggers, the back one always triggering the left shotgun barrel, and the front one triggering either the right shotgun barrel or rifle barrel, depending on the position of the selector slide. It features a cocking system, which replaces a traditional safety mechanism, since it prevents accidental triggering by putting the rifle in "safe mode" by simply not cocking it or decocking it after it is already cocked. The rifle is also automatically decocked when it is breeched. Blaser D99 was also available in two special models: D99 Duo and D99 Trio. The Duo features two rifled barrels instead of one, and the Trio features three rifled barrels. As with every multi-barrel rifle, the non-primary barrels have to be regulated to have the same point of impact as the primary barrel at the zeroed distance. However, Blaser made this somewhat easier by equipping the non-primary barrels with screws that the user can turn to adjust the barrel without the help of a professional gunsmith.

Blaser D99

Figure 1: Blaser D99. Source: https://www.blaser.de/en/products/firearms/combination-guns/drilling-d99/drilling-d99/

The rifled barrel is available for the following calibers:

.222 Rem.
5.6x52 R
.243 Rem.
6.5x55 SE
7x57 R
7x65 R
.308 Win.
.30-06 Spr.
.30 R Blaser
8x57 IRS
9.3x74 R

The shotgun barrel is available for the following gauges:

20/70

Blaser D99 features a barrel-mounting system where the mounts are mounted directly on the barrel instead of on the receiver. All modern Blaser guns (repeating rifles, break-barrel rifles, combination rifles, express rifles ...) have the same four notches on the barrel. Thus the same mounts fit on all Blaser modern rifles. The only exception here are some red dot sight mounts that are made specifically for R8 or R93 -- these do not fit other Blaser rifles.

Blaser D99

Figure 2: Blaser D99 Luxus. Source: https://www.blaser.de/en/products/firearms/combination-guns/drilling-d99/d99-luxus/#skipHeader&gid=lightbox-group-1101&pid=0

Which rifles have interchangeable mounts

Two-piece mounts

For two-piece mounts to be interchangeable the mounting surfaces of the rifles must match in every dimension except the B dimension which can vary. This is because the distance between the two pieces of the mount is not fixed. Blaser rifles have a special Saddle mount mounting surface, making their mounts interchangeable with most of their rifles. The following 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. Again, most Blaser rifles feature a special Saddle mount mounting surface, making their mounts interchangeable with most of their rifles. These are the following:

Important to note: once a mount for a Blaser rifle is mounted, it cannot be used on other Blaser rifle barrels – these mounts are designed so that they can only be used with one barrel. This means that you can use multiple optical sights on one Blaser barrel, but you cannot use one optic on multiple Blaser barrels.

Our recommendations for mounts

Detachable repeatable mounts

We recommend this 100% repeatable, reliable, and high-quality Saddle mount from Blaser.

Picatinny rails

For those who want to use a Picatinny rail, we recommend the Innomount Blaser Picatinny rail which is both reliable and sturdy.

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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VIDEO

There are two terms found for similar thing: quick release scope mounts and quick detach scope mounts. Term quick release scope mounts is used mostly in Europe and quick detach scope mounts is used mainly in USA, although they mean the same thing. With these terms we describe a scope mount that can be quickly removed from the rifle in the field without using any tools and quickly attached back on the rifle when needed.

Main advantages:

possibility to use multiple scopes on the rifle,
easy transportation of the scope and the rifle separately,
if scope fails, it is possible to immediately detach it and use iron sights.

FIXED vs DETACHABLE scope mounts

Fixed scope mounts are mounted to the rifle with screws and sometimes even with glue. This means that it is impossible to attach or detach the scope mount using bare hands without using tools. It also means that they are not meant for constantly being attached on or detached off the rifle. Once you screw the mount on the rifle, it normally stays there for a longer period of use.

Detachable scope mounts offer possibility to attach or detach them without using any tools. This is extremely handy while transporting the rifle and the scope separately and it also offers multiple solutions of different optics on the same rifle. Detachable scope mounts can be attached or detached from the rifle in a matter of seconds, using bare hands.

Fixed Mount

Fixed Mount

DETACHABLE vs REPEATABLE scope mounts

It is important to know and understand expressions “detachable” and “repeatable” while talking about scope mounts. Term detachable scope mounts implies scope mounts that can be quickly attached or detached without using any tools. However, when you detach this kind of mount and attach it back on the rifle, it is recommended to zero the rifle before using it again. Procedure of detaching and again attaching the mount will probably need a sighting in before next shooting, because mount will not be secured on the rifle in the perfectly same position and conditions as it was before detaching it off the rifle.

On the contrary, repeatable scope mounts are most sophisticated mounts. These scope mounts are also detachable, however – they provide removing scope from the rifle and attaching it back again without zeroing the rifle every time. This means that they are made more precisely and that they are offering a possibility of using different optical sights / scope on the same rifle. These mounts are ideal for hunters who can use optical and iron sights interchangeably, depending on the needs in different situations. With the repeatable scope mounts, it is useful to keep them oiled as well as the upper part of the rifle, so that repeatability is more ensured. With a touch of oil, the repeatability might be better, because parts of the mount will always return to their previous locations.

Different types of repeatable scope mounts:

Pivot mounts,
Dentler mounts,
Picatinny repeatable mounts,
12 mm dovetail repeatable mounts (for break barrel rifles, such as Steyr Duett, Blaser B750, Fair Combi, Fair SLX 800, Bettinsoli rifles, etc.),
Original repeatable mounts, made by manufacturers of rifles for their rifles (Blaser mount, Sauer SUM mount, Mauser M03 mount, Steyr Monoblock mount, etc.).

Repeatable Mount

Repeatable Mount

TIP OFF / ROLL OFF vs SLIDE ON mounts

Nowadays, there are a whole lot of different possibilities, made for attaching riflescopes on the rifles. There are also a lot of different expressions, having the same meaning. It is good to know that tip off and roll off mounts are basically the same thing. They represent quick release scope mounts for dovetails and rails which can be rolled or tipped off the rail vertically to the side of the rail. On the contrary, there are also slide on mounts available on the market. They represent quick release scope mounts that can be slided on or off the rail or dovetail from front or rear side of the rail / dovetail. All of these expressions are mainly used for separate rings that can be attached to the rails / dovetails. As far as functioning the rifle, it does not matter which one of these mounts you choose – tip / roll off or slide on mounts. If they are installed correctly, they are all going to work. However, the main difference between them is the principle of attaching them on rails on dovetails.

Slide On Mount vs. Roll Off Mount

Slide On Mount vs. Roll Off Mount

Blaser D99

Sub Categories

About the Blaser

Blaser D99 Rifle Review