New Bullet Creation for the 30 BR

[ALO]

I've a had a love a affair with the 30BR for quite some time,yes, my wife knows about it) and am always looking for something to improve on the already superbly accurate 30BR. I guess I'm looking for the legendary 'magic bullet' which probably does not exist. But the question I have and maybe some people already might have experimented with this, is a 30BR bullet with a weight range between 110-120grains and have a boat tail or rebated boat tail design. Have any experiments been done on this aspect as of yet? Would it increase the accuracy potential over the flat base bullets? I know there are only a handful of outstanding bullet makers out there for the bullets for the 30BR. Does anyone have any opinions about this particular design? If anyone has anything like this I would be willing to buy and run tests these types of bullets - so let me know.

AL O

 

[nonliberal]

ttt

 

[357Mag]

A -

Howdy !

I have read where knowledgeable people state FB bullets to be more accurate for the short-range BR game.
One big concern is the even release of propellant gasses, at the muzzle/crown. Some, stating that FB bullets do a more consistent release
of these gasses vs a boat tail bullet design.

That being said.... I have read tech papers stating that a rebated boat tail is better a consistent release of propellant gasses than is a FB bullet. One paper citing the definite demarkation bewteen the boat tail and the body of the bullet, aids in the more-consistent release of gasses @ the muzzle.

One thing to consider is the effect of having a boat tail ( of any size ) on a bullet. A point will be reached where bullets are too light in weight, to also incorporate a BT. The question is actually: what do you want or expect the boat tail/bullet to do for you ?

Amongst purist thinking, boat tails ( especially VLD types ) "come-on" @ distance... some will say, not until ranges on the order of 400yd are in play. I talked w/ Walt Berger about this very topic once. He did not dispute 400+yd as a general starting point; and also did not drive the discussion to any specific calibre; or bullet wt.

IMHO:
FBs are available in many calibres and in usefull weights, that allow these bullets to be pushed @ " sweet spot " velocities.
As a consequence, BTs or VLDs don't have to be used; for the comparatively shorter ranges of some accuracy disciplines.
This particular fact, would seem to hint at suitability of BTs for the "longer ranges".

Moreover, cases of limited capacity or size may not be able to drive BT bullets to velocities needed to make use of a BT even make sense;
something you are doubtless aware of.

"Whisper" shooters may very well tell you a whole 'nother story.

Best of luck in your endeavors !

With regards,
357Mag

 

[Hombre0321]

This thread brings up a quick story about my trying the 30BR at distance.

Last year I bought a Point Blank benchrest rifle just for the action to convert into a Long Range rifle as I have no interest in Short Range Benchrest.

The rifle I bought was a Farley Action and came with two barrels. One in 30BR and one in 6PPC. I rechambered the 6PPC barrel to 6 Dasher for a fireforming barrel and while I was waiting for my new Broughton Barrel in 6.5 I had a couple of Club shoots at 600 Yds to shoot. I had restocked this rifle with a Shehane Long Range Tracker stock and set about working up a 600 yd load for the 30BR. Nothing I tried would work at that distance. I had a lot of groups in the 23/4" range and a lot at 4" but nothing that was going to be competitive. I then heard about a Custom bullet maker in Colorado Michael Turner and in talking with him he made me some 125 HPBT's. In practice these were OK but nothing great. But I had this shoot coming up and so I loaded up a mess of them and headed out. I shot my Defiance Actioned 6Dasher in the light gun Match and the 30BR in the heavy gun match. Much to my surprise my first target with the 30BR was a 1.885"second was a 2.112" in the second relay my third target was a 2.224" and the last target was a 1.322". I won the Heavy Gun match with that 30BR and have never ever been able to duplicate those groups, not even close. I shoot the 30BR today in the Long Range stock just for the trigger time in the rifle. I love this little cartridge and maybe, just maybe in the right shooters hands the 30Br is capable of a little more than we think it is.

Roland

 

[BOBC]

I've thought of making a 125 gr BT with a 7.5 cal ogive. I have good match grade jackets and bullet dies made by Ferris Pindell, but never had the time to do this. I've been considering trying this for quite some time, but never got around to doing it. I've been rolling my own jacketed bullets since 1954 and loved every minute of it.

Made quite a few FB 119 and 125 gr bullets for the old hunter class matches many years ago. They shot like poison. If I did make light weight 30 cal BT's, I might even try closing the points. However, I don't know how beneficial closing the point would be at short range. But I bet it would be at 300yds which is about as far as I would want to go with such a bullet.

Isn't this a great and addictive hobby? Good shooting to all.