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If the Coriolis effect has any measurable influence on a bullet, then it will depend on the direction in which you shoot!
Beat Kneubuehl, in his two books on ballistics and projectiles mentions the Magnus effect, but not Coriolis. So I supect that the effect is for practical purposes undetectable, or, as a friend used to put it: "A difference that makes no difference is no difference.
Patrick
Darn it, sorry I meant Magnus effect. I'm slipping.
If my rifle shoots 3-4" right at 100 yrds, how far out would the
Magnus effect bring it center target. I'm thinking maybe 500 yrds? I'm only saying that because that's what the longist yard position that the base sight in the down position can be adjusted to. Ray
Hi there,
just come across this query about the long lee enfield, it seems there are few around so heres hoping someone can help.
I recently acquired 1902 long lee but it doesnt like modern ammo. I was given 215gr round nose heads which after resizing the cases some were loose or fell into the case. I bought a new LEE deluxe set and the same is happening again some fine whilst others loose, although 174gr sierrra have no problems. measured the bullets and both seem to be the same size. the 215 does have a cannelure which not sure makes a difference.
Anyway almost giving up on the 215gr (lucky i had a bullet puller or 100 cases would be used up to no avail.
anyone who shoots the long lee is there any other bullets thay they would advise to try?, I have had the bore measured with cerrosafe which almost ended in a deact!!!!! and tried to slug with lead shots but not a true measurement was made.
interested in the 215g KYNOCH ones shown in a previous thrad but cant open the site.
any help very much appreciated
douglass
Here is the link again :
kynoch nitro express cartridge range from .240 to .700
If that doesnt work try putting Kynamco into google and it should bring it up.
i thought that the mkvII ammo would destroy the rifling in the barrel of that older rifle
The old original ammo was loaded with a 215 and Cordite Mark I, which was really hot stuff. MV was 2060 ft/sec in the Mark VI version.
When the Mark VII came in, they started using Cordite MDT 5-2, the 174-grain triplex composite bullet and the MV increased to 2440 ft/sec.
Cordite MDT burns a LOT cooler than the original Cordite Mark I and so the effect is to prolong your barrel life.
BTW, you should be gaining about 100 ft/sec over the official speed with that Mark VII ammo in the old rifles; that extra 6 inches of barrel does make a difference. My 2250 ft/sec handloads for the SMLE clock at 2335 in a Ross with a 30-inch barrel.
Is there a current manufacturer for a 215-grain RN .312" bullet? Now that I actually HAVE a very nice Long Lee with a good bore (although factory-sportered about 90 years ago), it would be nice to try it with 'correct' ammunition. Be good for the LM Mark II commercial as well..... get a comparison of II, VI and VII loads and do it all the same day.
thankyou,i just thought that the higher muzzle velocity would wear down the barrel faster