glc24
Member
Thank you
223 crimping
- Thread starter lefteye42
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Thank you
I agree; looks good.
If that crimp rolled the case mouth full into the cannelure but not touching the knurling dimple ridges, it would minimally, maybe not at all, deform the bullet. Only way to see is to crimp bullets in sized empty cases all trimmed to exact same length and case neck walls uniform in thickness. Then pull the bullets to see if the case mouth inside edge imprints are in on the cannelure. If not, to me, such rounds have a prefect crimp.
If that crimp rolled the case mouth full into the cannelure but not touching the knurling dimple ridges, it would minimally, maybe not at all, deform the bullet. Only way to see is to crimp bullets in sized empty cases all trimmed to exact same length and case neck walls uniform in thickness. Then pull the bullets to see if the case mouth inside edge imprints are in on the cannelure. If not, to me, such rounds have a prefect crimp.
A taper crimp die is great as long as every case is the SAME length. If you have a short case it gets no crimp and if you have a long case it can squash a shoulder and cause feeding issues. I'm not too concerned about short case but the squashed neck is a problem in auto feeds. I run every case through a Little Crow WFT trimmer and trim them just under max length (1.76) and when I load the case I set a light taper crimp. I have had good luck with this combination. Prior to getting the Little Crow trimmer I did a light crimp with a Lee crimp die. Unfortunately, this requires another step but so does trimming each case. You simply need to decide where you want to put your energy and time.
kwg
kwg
au_prospector
Member
"I never flare any bottle neck rifle case even when loading a flat base bullet, you do?"
Uhhhh, no? Well actually I have not loaded anything but boat tail rifle rounds so ...... As I have never loaded a flat bottomed round, then I have not tried to start one in a bottle necked case.
Uhhhh, no? Well actually I have not loaded anything but boat tail rifle rounds so ...... As I have never loaded a flat bottomed round, then I have not tried to start one in a bottle necked case.
Back in the 1950's, benchrester's winning and setting records seated good quality 22 caliber flat base bullets in case mouths a few to several ten-thousandths smaller than bullet diameter.
Sierra Bullets stated in one of their later reloading manuals that flat based bullets typically shot more accurate in standard commercial rifle barrels. Boat tail bullets tended to shoot more accurate in custom match grade barrels. It was all about how gas escaped around bullet heels; where main diameters go to the long tapered heel on boat tails or to a short and small rounded heel to a flat base.
Both relating to ranges up to 300 yards.
Sierra Bullets stated in one of their later reloading manuals that flat based bullets typically shot more accurate in standard commercial rifle barrels. Boat tail bullets tended to shoot more accurate in custom match grade barrels. It was all about how gas escaped around bullet heels; where main diameters go to the long tapered heel on boat tails or to a short and small rounded heel to a flat base.
Both relating to ranges up to 300 yards.
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