Does bullet seating depth affect accuracy?
If your barrel is in good shape, you can increase accuracy by tweaking the bullet seating depth. Most bullets shoot most accurately when seated to within . 035 inch to . 015 inch) to be completely safe, yet close enough to get maximum accuracy.
Does seating a bullet deeper increase velocity?
Figure 1: When the bullet is seated farther out of the case, there is more volume available for powder. This enables the cartridge to generate higher muzzle velocity with the same pressure.
What is bullet seating depth?
Most bullets shoot most accurately when seated to within . 035 inch to . 015 inch of touching the lands. Many benchrest shooters like them just kissing the lands.
Are round nose bullets good?
Round Nose: Naturally, the round nose offers more penetration than a flat nose, but less expansion than a hollow point. It’s a good middle-ground shape that’s very common for plinking and varmint control ammunition.
How important is OAL in reloading?
Cartridge overall length, or “COL”, is important to safe functioning of reloads in firearms. This allows for the cartridge to be longer than the standardized 2.260″ SAAMI maximum overall length. These cartridges can be safely loaded to a length that has the ogive portion of the bullet just touching the rifle’s lands.
Is crimping bullets necessary?
Hard-kicking revolvers, for example, require crimping to prevent the bullets from being pulled out of the case under recoil. Rifles having tubular magazines, such as the Winchester Model 94, also require bullets to be firmly crimped to prevent their being forced back into the case under recoil.
How many bullets should be in a case neck?
As far as the bullet gripping in relation to the bullet, the bigger the bullet diameter the less neck length is required because of the surface area of the neck (3.1416 X the bullet diameter x the neck length will give you the surface area of the neck.
Does crimping increase velocity?
A heavy crimp instead of a normal crimp can result in a significant increase in velocity; not to mention pressure increase. I had a heavy crimped +P 158 gr SWC loading chronograph an avg of 975 fps while the normal crimped loadings with the same bullet/powder/case/primer combination yielded 925 fps.
How far off the land are Barnes bullets?
050”
When loading a Barnes TSX, Tipped TSX or LRX bullet, your rifle may prefer a bullet jump of anywhere between .050” up to .250” or more. This distance off the lands (rifling), aka “jump” may be limited to the rifles throat length, magazine length and bullet length.
What are flat nose bullets for?
The flat nose makes it easier to see exactly where your bullet penetrated a paper target, which makes for much easier scoring, as the hole is cleaner with less radial tearing.
Is an OAL gauge necessary?
Don Fischer said: The answer is no. Without the OAL tool you can’t measure the distence accurately to the ogive, only the tip of the bullet.
What kind of bullet has a flat nose?
Both 10MM and .40S&W were developed after hollow point rounds had become the primary defense bullet. The flat point FMJ bullet in those rounds merely mimic the shape of most hollow point bullets. There was no advantage to designing bullets for those rounds with a round nose. Click to expand… Good point and very true also.
What are the different types of Hunter bullets?
Pro-Hunter Bullets: All bullet shapes in this classification are flat base, and they include round nose (RN), semi-pointed (SMP), spitzer-pointed (SPT), flat nose (FN), and with a hollow point (HP/FN).
Why are Flatnose bullets used in rifle magazines?
Flatnose bullets are designed especially for rifles with tubular magazines. The large diameter meplat greatly reduces the chance of recoil-induced ignition of cartridges in the magazine when the rifle is fired.
Why does a bullet need to be seated in the case?
The chamber shape for any specific cartridge varies from one firearm to the next, so depending on the specific throat and leade dimensions, the bullet may need to be seated farther into the case in order to not jam into the rifling.