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Real quick question. Shot my Eddystone last weekend. I only shoot mild reloads of 2400 behind cast bullets, so I was running a cleaning patch down the bore to get the unburned powder residue out and I noticed that it was a 5 groove bore. The rifle is a WWII rebuild with a barrel marked H. S., which I assume was a high standard replacement. I was under the impression that all replacements were not 5 groove. Anybody got an idea????
A H.S. made barrel is a High Standard barrel, it is a 4 groove barrel. Are you certain it is a HS barrel?
I'll recheck, but the barrel is stamped H. S. with no date of manufacture. It has the usual flaming bomb ordinance stamp and the patch had carbon fouling in a 5 pointed, equidistant star pattern. My '03 barrel patches don't look like that. I was confused. Could it be an original barrel from 1918 or 19 that was incompleted and high standard installed it and stamped it??? Just a thought. I will photograph the barrel and patch later this week. I teach and coach football and it is a little busy right now.Quote:
Originally Posted by Calif-Steve
HS barrels for 1917,s are 5 groove right hand twist.
Thanks Chuck. Hope your year is going well...
Jason
thanks...life is good. busy...but good. wearing out a great motorycle for sure.
Why look at the dirty patch to count the rifling. Just look down the bore and count the lands and grooves.
One, two, three uh, ok, one two, uh ok, one, two, three uh.
Easier to get a dental pick and index it and count but the patch works just fine.
I have 3 1917's and shoot cast in all of them. I found that bore-rider design of the bullet does better than any of the other types of cal. 30"s that I have. Specifically Lyman #311334 which is an older and out of production mold...that I have always used with a 2 groove O3-A3 gives me the best grouping/accuracy. I believe that the 5 groove rifling where the lands occupy a larger part of the bore circumference, similar to the two groove configuration of the O3-A3, needs a bullet that has a shorter bullet body and a long nose that is positively guided by the increased land surface in both rifles. J. Cooper
Totally agree. Long nose "bore riders" give me the best accuracy. I like a 311290 also. Another bullet I like is a 311413. It isn't as much a bore rider, but it delivers great accuracy with low velocity. You can't speed it up. 11 grains of unique, no recoil and a happy day!!!
I have an Eddystone '17 that has an unmarked barrel with four grooves, right hand twist. I assume it is a JA barrel. It's a little smaller diameter behind the front sight than my original Remington.
DocBob
JA barrels are 2 groove, RIA barrels i belive are 4 groove
Its possible its an HS
It's got me puzzled. It's unmarked, smaller diameter and has a flat muzzle. It's got a great bore and shoots good with cast bullets. Another of life's mysteries.
DocBob
may be an aftermarket barrel
Yeah, ChuckinDenver,
I thought of that, too. Seems strange to not have any markings on it but as long as it shoots good, I'm pleased with it.
DocBob
Useful news for owners of P-14, M-17 and No4 rifles here:
Criterion Barrels, Inc.
Cost will be the decider, especially with the "fun" to be had fitting P-14 barrels.
iv installed more then a few Criterian barrels...more then most id bet..no issues so far at 200 or so installs..