The continuous semi-round groove in conjuncion with the barrel positions the bolt to the front and back and regulates a practically achievable headspace during production.

When the user chooses not to fire manually pulling the bolt handle backward to position 2 uncocks the action again for safe carry.

As the commercial introduction of the Heym SR 30 occurred within 20 years after 1984, Peter Fortner junior's patent at the time had not expired.

The bolt was however retained in the rifle during these tests avoiding a catastrophic failure of parts unintentionally moving backwards towards the user type.

Besides differences in the applied control mechanisms a major technical difference between the locking mechanisms of the Heym SR 30 and Savage Impulse rifles is that the 6 'hexlock' hardened steel locking bearings of the Savage Impulse bolt head, lock into a machined half-round recess of a steel barrel extension, allowing the use of a receiver made of mechanically less robust but lighter 7075-T6 billet aluminum with an integral 20-MOA picatinny rail and the possibility for the user to switch bolts and barrels to use different chamberings when such parts become available.

[14] In 2022 a dedicated long range or precision model using an adjustable aluminum chassis stock and detachable box magazine became available that is offered in chamberings up to the high bolt thrust .338 Lapua Magnum.

The Heym High Performance Precision rifle variant is guaranteed by the factory to deliver a five shot group of 20 mm at 100 meters (0.2 mrad).