Vázquez Raña claims there will be "even more support" for the alterations, which have been made to meet the International Olympic Committee's (IOC) gender equality requirements, after the conclusion of the meeting.

It was called purely to discuss the shooting programme at Tokyo 2020, with the topic the only item on the agenda.

The changes, which will see men's 50 metres rifle prone, 50m pistol and double trap replaced by three mixed team competitions, have not been universally popular, however, with ISSF vice-president Luciano Rossi the leading critic.

Rossi told Italian publication Armi e Tiro that the governing body "cannot accept a cancellation of our history and our culture" by agreeing to the adaptations, which were formally ratified by the IOC Executive Board at its meeting in Lausanne on June 9.

The high-ranking duo are likely to clash at the EGA.

"We are looking forward to tomorrow’s Extraordinary General Assembly and having the opportunity to discuss, and further explain, the changes to the Olympic shooting sports Programme," Vázquez Raña, ISSF President since 1980, said.

"The innovative amendments the ISSF proposed were the outcome of an extensive and collaborative consultation process, and the IOC’s decision to approve provides further validation.

“We have always said that change is not easy; but not to change was not an option. 

"We had to take control of our future and ensure that shooting remains relevant and attractive to modern audiences. 

"It is difficult to take a decision which means some athletes will not be able to compete at Tokyo 2020; but, it is our job to make these kinds of decisions when they represent what is best for the sport’s long-term future. 

"A lot of athletes and national federations have already expressed their support for the changes and we are sure that after the EGA we will have even more support.”

Rossi has been at the centre of the controversy leading up to tomorrow's EGA after Carlos Silva Monterroso, President of the Shooting Confederation of the Americas (CAT), called on the Italian to be referred to the worldwide governing body's Ethics Committee.

Monterroso wrote a letter to ISSF secretary general Franz Schreiber, obtained by insidethegames, accusing the Italian of sending "false statements" to National Federations regarding the shooting programme at Tokyo 2020.

Monterroso also alleged that Rossi had accused him of defamation, as well as threatening legal action against him, Vazquez Raña and Schreiber.

In a row that is almost certain to continue tomorrow, the CAT head has claimed the Italian should resign from his post and begin his threatened legal action should he have an interest in anything other than "political posturing".

The ISSF had already accused Rossi in April of making a series of "false accusations" and spreading lies in relation to the changes to the Tokyo 2020 programme.

They said the Italian had "attacked the 2020 Olympic shooting programme recommendations" and criticised Rossi for spreading "false information".

It came in response to a letter circulated by Rossi, which claimed Schreiber and fellow vice-president Gary Anderson had held secret talks with the IOC about the possible introduction of laser guns into the sport.

The ISSF have refuted any such suggestions and claimed Rossi was part of both bodies which unanimously approved the recommendations - the ISSF Executive Committee and Administrative Council.

Rossi, who has also claimed his "longstanding" backing of Vázquez Raña has now come to an end, does have his supporters, however.

They are likely to raise issues and concerns during the EGA in what is expected to spark lively debate among the ISSF's membership.