I haven't heard much on this subject. It seems to appear every year or so. Is there any benefit to this? I also heard that some 1000 yd boys used this application. Anyone have any experience with this ??

An idea who�s time has not come.

Every few years you hear about a renewed interest in gain twist. The problem is, there has never been any measurable benefit. It dose not increase accuracy, does not increase velocity, and they are expensive to cut.

I have two rifles with gain twist, both barrels cut by Ron Smith. Both are fantastically accurate, one is in 240 Gibbs and the other is in 340 Wby. I don't know about the velocity claims, but as mentioned, my experiance is that they are very accurate. Might just be that they are well made barrels and trued and bedded actions though. Hard to say. I know I will buy more of the same, so I guess I'm in favour of the idea. FWIW - Dan

I have used quite a few gain twist barrels also by Ron Smith and can attest that they are fine barrels. While they may be no more accurate they certainly are no less so. In some cases I think they may in fact be more accurate. This especially in the case of fast twist barrels using heavier bullets. I like them fine. Regards, Bill.

What is 'gain twist'?

xwind, don't know the actual numbers but gain twist starts out slow, maybe 1 in 20" and ends up tighter like 1 in 10". Easier to deal with pressure but I always heard rough on the bullet because the engraving changes.

The 6.5 Italian Carcano used it. Some German anti tank guns also used it & the russian tankers despised it!

I have two by Apex Barrels out of Flagstaff, Arizona. The chief claim is that they produce velocity equal to about 3" more of barrel length. Both of mine are in short action 338 caliber, one cartridge which I was able to compare to a duplicate chamber with a barrel 24" long. In fact both produced similar velocity with the same loads. Mine are quite accurate but I don't know that they are more so than a conventional barrel.

Mete,
Thanks. I really got to get out more