Seating bullets by chambering?
- Thread starter coolbox
- Start date
This technique has been used for a long, long time. It's called 'breech seating' and was used by accuracy shooters in single shot Schuetzen-type rifles with lead bullets and black powder.
How did you arrive at your OAL?
Fast14riot
Gold $$ Contributor
I seem to remember David Tubb doing this with 243 to win the LR championships. He runs low neck tension.
Explain I don't understand the die would like to seat. I can screw my seater to any depth I want. This is new to me.
I think it was John Whidden when using the Berger 105 VLD ,Lapua 243 and .001 neck tension .
The round is longer than the die can afford! The rifle was throated for 230gr hybrids (~3.75" COAL), and as a result the 198 flatlines hv to be seated way out to touch the lands, where I want to load them at.
The point of this thread was to also get an opinion on seating method, amd any detrimental effect on accuracy of that.
rwj
Gold $$ Contributor
Have you tried using a split shaft collar installed on the ram below the press to limit its upward travel? Once limited, fine length adjustments can be achieved via the die micrometer.
www.mcmaster.com
McMaster-Carr
McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.
Not sure how that would work regarding concentricity as the loaded cartridge is essentially longer than the die. I can try though.Have you tried using a split shaft collar installed on the ram below the press to limit its upward travel? Once limited, fine length adjustments can be achieved via the die micrometer.
McMaster-Carr
McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.
You can't screw that die out of the press far enough to seat you bullets at the coal you are looking for?
When soft seating with light neck tension you don't chamber a round until you are ready to fire it. When using this technique runout becomes a mute point. Pushing the bullet into the lands aligns the bullet with the bore. Probably why it has been such a successful technique all these years.
I bet you’ll end up with an action full of powder during a cease fire if you soft seat. One trade off.
Yes
https://www.redding-reloading.com/tech-line-a-tips-faqs/198-vld-competition-seater-chart
Redding offers a group of specialized free floating seat stems for its Competition Seating Dies when using VLD style bullets.
Your bullet length at 1.800" is a long one, but some others are even longer. http://www.jbmballistics.com/ballistics/lengths/lengths.shtml
I would ask Redding about the issue.
Redding offers a group of specialized free floating seat stems for its Competition Seating Dies when using VLD style bullets.
Your bullet length at 1.800" is a long one, but some others are even longer. http://www.jbmballistics.com/ballistics/lengths/lengths.shtml
I would ask Redding about the issue.
Last edited:
rwj
Gold $$ Contributor
It would make all seating forces inline, eliminating any twisting forces imparted to the case as the bolt handle is rotated closed/open...
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