45-70 Seating depth

[jgh4445]

Does anyone shoot a 45-70 sharps ( or I guess any single shot) with the bullet seated in such a manner that the driving band and one grease groove are outside the case and the bullet firmly into the rifling? When I used a comparator, it showed that I am about .314 inches off of the rifling with the ogive. The postel bullets nose is in the rifling but not touching, the round nose govt bullet not so much. Just wondering what the effect might be if I loaded with the bullets seated further out. Also wondering if that would create a pressure problem. Black powder of course.

[Dave Roelle]

Does anyone shoot a 45-70 sharps ( or I guess any single shot) with the bullet seated in such a manner that the driving band and one grease groove are outside the case and the bullet firmly into the rifling? When I used a comparator, it showed that I am about .314 inches off of the rifling with the ogive. The postel bullets nose is in the rifling but not touching, the round nose govt bullet not so much. Just wondering what the effect might be if I loaded with the bullets seated further out. Also wondering if that would create a pressure problem. Black powder of course.

You should see an increase in accuracy associated with better bullet-bore allignment, its a very common loading practice

Pressure will be no problem with any normal granulation of black powder (1F through 3F)

Hope this helps

Dave

[jgh4445]

Thank you sir. I just noticed upon closer inspection of the marks on the bullet. it is actually the driving band making contact with the rifling as opposed to the ogive. The driving band is .010 larger in diameter than the body of the bullet. Learning every day.

[Old Jim]

Rifles I have owned thru the years have, for the most part, liked to have the grease-groove bullet engrave the rifling to a certain degree. If that didn't work, then bullets would be set off the rifling about 0.020-0.040".

[jgh4445]

Thanks, yep, that's what its gonna look like. Now to decide what to take up the empty space with, powder, wads or a combination of both. Only practice will tell that.

[bruce moulds]

jgh,
you can't go wrong with powder.
keep safe,
bruce.

[Ironramrod]

Yep, ditto on the powder.

[jgh4445]

Powder it shall be!