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by bruce moulds
Sat Aug 11, 2018 1:13 pm
Forum: Equipment & Technical
Topic: Copperhead projectile approval?
Replies: 21
Views: 1035

Re: Copperhead projectile approval?

wal,
it is not the icfra that is rumoured to be the problem.
keep safe,
bruce.
by bruce moulds
Sat Aug 11, 2018 11:11 am
Forum: Equipment & Technical
Topic: Copperhead projectile approval?
Replies: 21
Views: 1035

Re: Copperhead projectile approval?

"the nraa's cut" the bullet tax. rumour has it that there is discussion at high levels to limit fopen and ftr bullets, so a similar tax can be put in place. argument being that fstd and tr is shouldering an unfair financial burden compared to ftr and fopen. when thay had control of the tax...
by bruce moulds
Fri Aug 10, 2018 9:13 pm
Forum: General Forum
Topic: magnaport.
Replies: 3
Views: 235

Re: magnaport.

thank you
by bruce moulds
Fri Aug 10, 2018 6:22 pm
Forum: General Forum
Topic: magnaport.
Replies: 3
Views: 235

magnaport.

the former lives of tse used to do magnaporting, but tse do not.
would anyone know if someone in aust offers this process now?
keep safe,
bruce.
by bruce moulds
Wed Aug 08, 2018 9:52 pm
Forum: Equipment & Technical
Topic: When does BC Adavtage , become a disadvantage?
Replies: 6
Views: 401

Re: When does BC Adavtage , become a disadvantage?

b.c does not have to affect recoil, barrel wear, cost of powder, or retuning barrels. that is more to do with ammount of powder burned, except where higher b.c bullets, being heavier have more recoil. one advantage of higher b.c. bullets is that you can run them a bit slower than low b.c. bullets fo...
by bruce moulds
Mon Aug 06, 2018 8:18 pm
Forum: Equipment & Technical
Topic: Trail boss 357mag loads
Replies: 9
Views: 295

Re: Trail boss 357mag loads

macguru, in lever repeaters, marlins are the easiest to clean as you can remove the bolt easily. winchesters must be cleaned from the muzzle, which is not as bad as it sounds. a rod guide on the muzzle is adviseable, and supporting the rifle upside down is also good. black powder fouling will dissol...
by bruce moulds
Mon Aug 06, 2018 5:42 pm
Forum: Equipment & Technical
Topic: 7mm SAUM Rechamber/Barrel Life
Replies: 29
Views: 1240

Re: 7mm SAUM Rechamber/Barrel Life

and so the wheel goes round.
lee metford barrels were found to erode quickly with cordite, and william metford redesigned the rifling to be deeper, which became known as enfield rifling.
wear/erosion is probably the same, but more stuff to wear/erode takes longer.
keep safe,
bruce.
by bruce moulds
Mon Aug 06, 2018 11:38 am
Forum: Equipment & Technical
Topic: Trail boss 357mag loads
Replies: 9
Views: 295

Re: Trail boss 357mag loads

there is another approach available. in the time between all black and all smokeless, guys did what is called duplex loading. harry pope was one of these. work out the charge of black to fill the case to the base of the seated bullet. replace 1/10 the weight of it with a fast pistol powder, and top ...
by bruce moulds
Mon Aug 06, 2018 9:42 am
Forum: Equipment & Technical
Topic: 7mm SAUM Rechamber/Barrel Life
Replies: 29
Views: 1240

Re: 7mm SAUM Rechamber/Barrel Life

Hmm yes, I see your point. So just to gather further detailed and specific data and to help me more clearly understand, would a fair analogy be that when the moon is fullest and power lines are aquamarine, that the boiling billy makes cement reflect back to the hey days of life in the roaring 20's ...
by bruce moulds
Sun Aug 05, 2018 7:31 pm
Forum: Equipment & Technical
Topic: 7mm SAUM Rechamber/Barrel Life
Replies: 29
Views: 1240

Re: 7mm SAUM Rechamber/Barrel Life

marty,
the 284 is an honest workhorse.
keep safe,
bruce.
by bruce moulds
Sun Aug 05, 2018 7:28 pm
Forum: Equipment & Technical
Topic: Max peak elevation of trajectory?
Replies: 9
Views: 300

Re: Max peak elevation of trajectory?

a 540 gn long range profile black powder bullet at about 1300 fps goes about 50 feet high at max height of trajectory.
this is way above the flags.
modern smokeless vld bullets go nowhere that.
keep safe,
bruce.
by bruce moulds
Sun Aug 05, 2018 3:27 pm
Forum: Equipment & Technical
Topic: Trail boss 357mag loads
Replies: 9
Views: 295

Re: Trail boss 357mag loads

actually the 357 is not all that different to the 38 ballard extra long, a popular round in the day. the main difference is that modern 357 brass is thicker and harder, to take modern higher pressures. using either trailboss or black pressures the 357 cases should ideally be annealed a little softer...
by bruce moulds
Sun Aug 05, 2018 2:43 pm
Forum: Equipment & Technical
Topic: Trail boss 357mag loads
Replies: 9
Views: 295

Re: Trail boss 357mag loads

you won't gum it up with black powder if you do it right. millins of 44/40, 38/40, 32/20 rounds were loaded with black originally and shot in lever action repeaters. it works well if you do what the old dead guys did. also, contrary to urban myth, it is way easier to clean than smokeless. keep safe,...
by bruce moulds
Sat Aug 04, 2018 10:14 pm
Forum: Equipment & Technical
Topic: Trail boss 357mag loads
Replies: 9
Views: 295

Re: Trail boss 357mag loads

macguru, a full case will require compression of the powder. doing this with a cast bullet will cause it to increase in diameter. a less than ideal situation. black powder often shoots better compressed, and the way it is done is to use a compression die prior to seating the bullet. in fact a true c...
by bruce moulds
Fri Aug 03, 2018 10:49 am
Forum: Equipment & Technical
Topic: throat/leade angle.
Replies: 2
Views: 295

Re: throat/leade angle.

sorry alan. safe loads refers to good safe loads in the original throat. same ammo, same coal, (more jump) fired in the rethroated chamber blew primers. the rethroated chamber allowed a longer cartridge oal, so one would have expacted reduced pressure. when recthroated a second time with a lower ang...

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