- rem700 a écrit:
- Bonjour,
Est-ce qu'il y en a parmis vous qui ont déjà vu un article parlant de l'usure d'un canon par rapport au calibre tiré? Je sais qu'il y a plusieurs variantes qui entrent en ligne de compte, mais j'aimerais juste en avoir une idée.
Merci
Allo, comme yu l'amentionné, il ya plusieurs variantes. mais en gros
voici :
As a very rough rule of thumb I would say that with cartridges of .222 Remington size you could expect an accurate barrel life of 3-4000 rounds. And varmint type accuracy should be quite a bit longer than this.
For medium size cartridges, such as the .308 Winchester, 7x57 and even the 25-06, 2-3000 rounds of accurate life is reasonable.
Hot .224 caliber type cartridges will not do as well and 1000-2500 rounds is to be expected.
Bigger magnum hunting type rounds will shoot from 1500-3000 accurate rounds. But the bigger 30-378 Weatherby types won't do as well, being closer to the 1500 round figure.
These numbers are based on the use of stainless steel barrels. For chrome-moly barrels I would reduce these by roughly 20%.
www.riflebarrels.com/faq_lilja_rifle_barrels.htm#LifeD apres une question-reponse du site des canons LILJA.....
A surveiller la mention qui dit que c est la chaleur qui «tue» une canon, donc les coups en répétiton trops rapides.....
Marc