New to rifle bollits
- Thread starter bruce381
- Start date
Ian
Notorious member
They are a figment of over-optimistic bullet caster's imaginations beyond all but the most sedate velocities.
Historically attributed to J.H. Barlow and a couple of notable others, the concept is a two-diameter bullet with a parallel nose sized to fit the bore diameter and a parallel body portion sized just larger than the rifle's groove dimension. Since the key to consistent grouping with rifle bullets is a geometrically straight launch into the barrel, the nose fitting snugly and straight into the lands when the cartridge is chambered gives a good probability of the rest of the bullet following straight into the barrel and promotes the concept of a straight launch. It works to a point, but exact fitment can be frustrating and the narrow land tops of most modern rifles do not provide much actual support to guide the bullet nose straight.
Historically attributed to J.H. Barlow and a couple of notable others, the concept is a two-diameter bullet with a parallel nose sized to fit the bore diameter and a parallel body portion sized just larger than the rifle's groove dimension. Since the key to consistent grouping with rifle bullets is a geometrically straight launch into the barrel, the nose fitting snugly and straight into the lands when the cartridge is chambered gives a good probability of the rest of the bullet following straight into the barrel and promotes the concept of a straight launch. It works to a point, but exact fitment can be frustrating and the narrow land tops of most modern rifles do not provide much actual support to guide the bullet nose straight.
waco
Springfield, Oregon
Bombay Gin could be one of a few culprits if memory serves....
Joshua
Taco Aficionado/Salish Sea Pirate/Part-Time Dragon
Here is a photo of a Lyman 311284. This bullet was originally intended to be used in the 30-40 Krag. It had a nose that cast undersized at .297”. The driving bands cast at .309”. It was too small for my 30-06, so I sold it.
I bought another Lyman bore rider, the 311290. It was also too small but powder coating added a few thousandths and it works well with 16grs of 2400.
If you do a little searching on this site you will find quite a few posts by Ben about bore riding bullets, he is a big fan of the style. Long and heavy 30 cal bullets going slow.
I bought another Lyman bore rider, the 311290. It was also too small but powder coating added a few thousandths and it works well with 16grs of 2400.
If you do a little searching on this site you will find quite a few posts by Ben about bore riding bullets, he is a big fan of the style. Long and heavy 30 cal bullets going slow.
fiver
Well-Known Member
bore rider.
notice the nose versus the body.
non bore riding.
all of the engraving surface is on the body.
there are other types and style for rifles.
the Loverign designs are tapered from front to back to snuggle up in the throat, but still have enough base diameter to fill the entire barrel.
they may have a portion or portions that are a bore rider, and others that engrave the rifling but don't fill the grooves fully,
CZ93X62
Official forum enigma
Jax's paw prints are all over this.
CWLONGSHOT
Well-Known Member
Here is my 358009 NOE clone. Cast hard into wet news print. Took 4' ta catch it!!
CW
CW
CWLONGSHOT
Well-Known Member
Couple More Pics of the 358009 Cast.
The left most are the 358009 then moving two bullets to the right you see another bore rider. This is a Lyman 311440.
CW
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