Range day, c309- 200 & #315

Sendaro

Active Member
I don't like using range brass. You never know how many times it's been loaded and shot. I do however pick it up and it goes in my scrap brass bucket. When the can is full I take it to the scrap yard and receive money to purchase nice new brass.

It was once said that You can buy cheep oats, but if you want fresh oats not cycled through the horse they cost more.
 

Spindrift

Well-Known Member
I understand your reluctance to use range brass. I do, of course, carefully inspect the brass and cull it with total lack of sentimentality. But it is a certain risk in using brass of unknown history, though the risk is maybe less when loading low pressure reduced loads.
 
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Spindrift

Well-Known Member
Ooold thread, new post!
Today, I shot some powder coated c309-200-R, sized .310, in my Schultz & Larsen 30-06. The nose is pretty fat, necessitating relatively deep seating of the bullet. But it works, anyway.

Shot @100m, two different loads with Vectan Tubal-5000 (4350-ish). 42 grs was 2100fps, and 5 shots at 1,5 MOA. 41 grs (didn’t chrony) had the better group today, about 1,1 MOA.

Neither velocity nor accuracy are really remarkable, but it is fun to see what you can get out of a Lee bore rider, and range scrap alloy covered with PC.
CD460886-D688-4E35-B575-095965188D70.jpeg
 
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Ian

Notorious member
OK, someone explain to me why a bullet shaped like a .30-'06 throat shoots best in a .308 Winchester and why a Barlow bullet shaped like a .308 shoots so well in a .30-'06?
 

RBHarter

West Central AR
Because I can that 311-230 NOE at 4" and be just touching the lands in my favorite 06' . I haven't started on my grandpa's M70 but I'd bet it's a lot shorter .
 

fiver

Well-Known Member
OK, someone explain to me why a bullet shaped like a .30-'06 throat shoots best in a .308 Winchester and why a Barlow bullet shaped like a .308 shoots so well in a .30-'06?


the only thing I can think of is there is that tiny little air gap right in front of the front drive band which allows some movement of the alloy right there.
you get a perfect slug of the throat with minimal alloy movement.
 
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Ian

Notorious member
the only thing I can think of is there is that tiny little air gap right in front of the front drive band which allows some movement of the alloy right there.
you get a perfect slug of the throat with minimal alloy movement.

I agree. I think the gradual (relatively!) stacking of contact points as the bullet is fired let's the bullet guide to the center of the bore while getting an inertial head start on squeezing the body portion through the throat, thus reducing the suddenness of the resistance and spike in pressure which can bend and rivet the back of the bullet.

A sort of throat/bullet mismatch, in the right way, just seems to shoot better for me and a lot of people.