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-   -   How many grooves (https://www.rimfirecentral.com/forums/showthread.php?t=1223273)

metrotps 05-12-2021 12:59 PM

How many grooves
 
I was wondering how many grooves are in the popular bench rifle barrel.

vlnbyr 05-12-2021 01:02 PM

Between 2 and 8.

metrotps 05-12-2021 01:46 PM

I know back many years ago when I was shooting military matches the 2 groove Springfield's I had shot cast bullets the best and was wondering if that may be the case with the lead rimfire ammo or if .22LR shot better with more grooves.

vlnbyr 05-12-2021 04:37 PM

Benchmark 2 & 3 groove. Shilen ratchet and Muller 4 groove. Shilen octagon and Muller 8 groove. Most popular.

Toomany22s 05-12-2021 07:55 PM

2 grooves , 1 land? And the projectile rides the land?

hawkeye62 05-14-2021 01:18 PM

Quote:

Originally Posted by Toomany22s (Post 12315163)
2 grooves , 1 land? And the projectile rides the land?

Unless there is a geometry that I am not aware of, I think 2 groves would have 2 lands.

Jim

dbr65 05-16-2021 03:56 PM

Not sure about the specific answer to your question, but I have two 3-groove Benchmark reverse taper barrels that are superbly accurate.

Doug

Toomany22s 05-16-2021 09:42 PM

Quote:

Originally Posted by hawkeye62 (Post 12316563)
Unless there is a geometry that I am not aware of, I think 2 groves would have 2 lands.

Jim

Help me here, im limited. Land is the raised/ high part right? And so it has a groove, low / valley part, on each side.


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