I am a bit concerned about the recoil and richochet potential of a 223/70gr VLD rig, so I wondered about a 37gr 17cal VLD rig which should cut the wind drift approx in half from my 222 if I can launch it at 3,500fps.
The questions I have are:-
For throating purposes, does one seat so that the heel of the bullet is to the base of the neck or where the boat tail finishes?
What is the length of the bullet and the length of the boat tail?
What case is going to achieve 3,500fps best 17 rem or MK IV? (the Javelina is too much of a pain to form for me I think)
This is for say up to 10 shots in a 3 hour session, what is accurate barrel life likely to be?
I gather that Pence barrels is not taking any more orders - where else can one obtain 6 twist barrels?
Or maybe I should just wait for some still days!
-Why don;t you look at the BR case for the VLD 17 bullets. Read an article about the 17 BR with the 37gr VLD and was pretty impressed with the results out past 500 yards.
-At that rate of fire, your barrel will last a long time if cleaned every 30 rounds or so, any 17 should be cleaned often.
-I agree that the 6 twist barrel is a bit fast. Remember that there aren't to many VLD 17 caliber bullets, if your barrel doesn't like the 37 gr pill, any lighter bullet may let loose at the muzzle from the strain. I believe Lilja has a selection of 17 caliber barrels with different twists.
-I have shot Berger bullets in some of my larger wildcats designed for VLD bullets and all have lost accuracy much above 3300-3350 fps because of the very thin jacket design. Just something to think about.
Good Shooting!!!
50
If I recall correctly, the 37 VLD only outperforms the Kindler 27 and 29 grain bullets (about the most streamlined 17 bullet out there that actuallyh works) if you can motivate the 37 grainers to about 3600-3700 fps. The problem is the jackets are too thin to withstand the rotational forces and for most people who have tried, the VLD the bullets just fly apart much past 3400. As stated above, I could not get a bullet to hold together past 3200 fps.
Until we get a bullet with a tougher or thicker jacket, the 37 grain VLD is a waste of effort IMHO. If you want to maximize trajectory the most streamlined 17 bullet is Kindler's 27 (.234 B.C.?) or 29 grain and jack the velocity as high as you can go. The 37 VLD cannot touch a 27 grain boat-tail moving 4000 fps.
My .02 worth.
Jordan
If I recall correctly, the 37 VLD only outperforms the Kindler 27 and 29 grain bullets at 4000 fps (the most streamlined 17 bullet available which actually works) if the 37 is motivated to about 3700 fps. The problem is the jackets are too thin to withstand the rotational forces and for most people who have tried it, the VLD bullets just fly apart much past 3400. As stated above, I could not get a bullet to hold together past 3200 fps.
Until we get a bullet with a tougher or thicker jacket, the 37 grain VLD is a waste of effort IMHO. If you want to maximize trajectory the most streamlined 17 bullet is Kindler's 27 (.234 B.C.?) or 29 grain and jack the velocity as high as you can go. The 37 VLD cannot touch a 27 grain boat-tail moving 4000 fps.
My .02 worth.
Jordan
If I recall correctly, the 37 VLD only outperforms the Kindler 27 and 29 grain bullets at 4000 fps (the most streamlined 17 bullet available which actually works) if the 37 is motivated to about 3700 fps. The problem is the jackets are too thin to withstand the rotational forces and for most people who have tried it, the VLD bullets just fly apart much past 3400. As stated above, I could not get a bullet to hold together past 3200 fps.
Until we get a bullet with a tougher or thicker jacket, the 37 grain VLD is a waste of effort IMHO. If you want to maximize trajectory the most streamlined 17 bullet is Kindler's 27 (.234 B.C.?) or 29 grain and jack the velocity as high as you can go. The 37 VLD cannot touch a 27 grain boat-tail moving 4000 fps.
My .02 worth.
Jordan
Whoops!!! Forgot about the .17 "30 Gold"---think it has a BC of .280, which would be the most streamlined bullet out there which actually works.
As an aside did you know that by only 250yards a 223 poking out a 70gr VLD at 3,100fps is going faster than a 22-250 screaming out a 50gr at 3,600fps! Wonder what a quick twist 22-250 with 70s is like!?
Unfortunately too loud for me.
I can drive a 105 gr A-Max to 3450 fps and a 107 gr Matchking to 3600 fps with top accurate loads.
These two bullets have B.C. numbers equal to or greater then the .308" caliber 180gr Ballistic Tip which means they will fly as flat and loose velocity at the same rate as the much larger .308" bullet.
What size case do you think it would take to drive that 180 gr bullet as fast as I can the 105-107 gr VLD bullets. At least a 7.82 Warbird or 30-378.
Now I get as good or better ballistic properties with half the powder burned and about 1/5th the recoil.
Of course down range energy is more for the 30 caliber round but for 1000 yard chuck hunting the 6mm-284 has much more then needed. Kills at that range are almost instant with the A-Max bullet.
Just goes to show you that its easier on the shoulder to use technology then to try to force the issue with more power.
Just my experience!!!
50
Where did you get this information ?
muck
there is your info!!!!!!!