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by bruce moulds
Sun Oct 25, 2020 7:58 am
Forum: Equipment & Technical
Topic: KM Arbor Press Force Indicator
Replies: 12
Views: 575

Re: KM Arbor Press Force Indicator

wsftr, you raise a good point. when seating bullets with an arbor press it is easy to feel differences in seating pressure, and batch the ammo into harder to seat and easier to seat lots. you don't need a gauge to do this. invariably, the harder to seat lots have a slightly longer coal. maybe 0.001&...
by bruce moulds
Fri Oct 23, 2020 4:24 pm
Forum: Equipment & Technical
Topic: Wilson FL bushing dies
Replies: 5
Views: 213

Re: Wilson FL bushing dies

if you are neck turning, bushing dies are totally unsuitable for that.
bruce.
by bruce moulds
Fri Oct 23, 2020 11:42 am
Forum: Equipment & Technical
Topic: KM Arbor Press Force Indicator
Replies: 12
Views: 575

Re: KM Arbor Press Force Indicator

i have often wondered how much difference seating pressure affects accuracy on paper. the reason is that differences here might well be negated by case neck obturation on firing. unless the primer overrides this? the same suspicion goes into measuring release force. you might be measuring something ...
by bruce moulds
Fri Oct 23, 2020 11:36 am
Forum: Equipment & Technical
Topic: KM Arbor Press Force Indicator
Replies: 12
Views: 575

Re: KM Arbor Press Force Indicator

Thanks very much everyone for the advice, much appreciated. Ill definitely save some money and not go down the rabbit hole lol I was just worried with my Redding seating die I wasn't getting the accuracy I needed because its not a micrometer type. Ill definitely look at getting one of those boresco...
by bruce moulds
Thu Oct 15, 2020 7:30 pm
Forum: Equipment & Technical
Topic: Barrel Trends
Replies: 23
Views: 1957

Re: Barrel Trends

pete,
that is probably better than one with a kink in it where they "straightened" it, as was done in the day.
bruce.
by bruce moulds
Thu Oct 15, 2020 10:34 am
Forum: Equipment & Technical
Topic: Barrel Trends
Replies: 23
Views: 1957

Re: Barrel Trends

truth be known, there could well be as much difference in accuracy, fouling, etc within a barrel brand and type of rifling, than betwwen them. more important is the quality of manufacture and finish, and how said barrel is fitted, run in, and fed. also the condition of how the reamer leaves the thro...
by bruce moulds
Mon Oct 12, 2020 5:44 pm
Forum: Equipment & Technical
Topic: Barrel Trends
Replies: 23
Views: 1957

Re: Barrel Trends

keith, what type of rifling is better in the wind? i think stability can have that effect too. precession and nutation are not your friend in the wind. but we have to live with it. another trend that comes to mind. when i started, i used heavy varmint profile at 28" because that was max length ...
by bruce moulds
Mon Oct 12, 2020 5:09 pm
Forum: Equipment & Technical
Topic: Barrel Trends
Replies: 23
Views: 1957

Re: Barrel Trends

what i don't like about canted lands is the possibility that cleaning patches and brushes tend to skid over them, rather than rotate with the twist. square rifling takes the patches and brushes with it. canted lands will show you how good the bearings in the rod handle are! in terms of trends, there...
by bruce moulds
Thu Oct 08, 2020 5:31 pm
Forum: Equipment & Technical
Topic: Eric Cortina on setting the dies for shoulder bump
Replies: 44
Views: 3760

Re: Eric Cortina on setting the dies for shoulder bump

regarding accuracy, my rifle is currently shooting a bit less than 1/2 moa vert at 300 mt, and right on 1/2 moa at 900. have yet to try 600. that will be the test of a good load, as the slow ones might be going higher and the fast ones lower, giving vert in the middle range. i am using the steam dri...
by bruce moulds
Sat Oct 03, 2020 6:01 pm
Forum: Equipment & Technical
Topic: Eric Cortina on setting the dies for shoulder bump
Replies: 44
Views: 3760

Re: Eric Cortina on setting the dies for shoulder bump

or is it one where you can come up 2 clicks, and the first shot after that comes up 2 clicks, and you know for sure you don't have to fire 2 more to verify it.
bruce.
by bruce moulds
Sat Oct 03, 2020 8:35 am
Forum: Equipment & Technical
Topic: Eric Cortina on setting the dies for shoulder bump
Replies: 44
Views: 3760

Re: Eric Cortina on setting the dies for shoulder bump

my black powder rifles can shoot 3/4 moa at 100 yds in kind conditions. what i have leaned about wind effects on vert has been most surprising. then i found a wind chart in a small book by sir henry halford which predicts BOTH deflection sideways and verticle for a typical 45ish calibre bullet at sp...
by bruce moulds
Fri Oct 02, 2020 9:53 pm
Forum: Equipment & Technical
Topic: Eric Cortina on setting the dies for shoulder bump
Replies: 44
Views: 3760

Re: Eric Cortina on setting the dies for shoulder bump

tim and rich,
i quite understand your point.
bruce.
by bruce moulds
Fri Oct 02, 2020 8:33 pm
Forum: Equipment & Technical
Topic: Eric Cortina on setting the dies for shoulder bump
Replies: 44
Views: 3760

Re: Eric Cortina on setting the dies for shoulder bump

maybe learn to read conditions as the higher priority. bruce. How do you learn that without an accurate rifle? The Chicken or the Egg? rich i think i have learned more about the wind from shooting black powder long range with iron sights than anything. twice the deflection of a 308 palma load have ...
by bruce moulds
Wed Sep 30, 2020 5:41 pm
Forum: Equipment & Technical
Topic: Eric Cortina on setting the dies for shoulder bump
Replies: 44
Views: 3760

Re: Eric Cortina on setting the dies for shoulder bump

maybe learn to read conditions as the higher priority.
bruce.
by bruce moulds
Wed Sep 30, 2020 4:59 pm
Forum: Equipment & Technical
Topic: Eric Cortina on setting the dies for shoulder bump
Replies: 44
Views: 3760

Re: Eric Cortina on setting the dies for shoulder bump

gyro, because they think sheer accuracy is the only thing in the formula, and don't want to listen to anything else. when someone that does know stuff tries to help, they either argue back or change the subject to what they think. little incentive to the giver of knowledge. this forum is full of inf...

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