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Long range 220 swift
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I have a 26" Shaw 1-8 I screwed on about 1 1/2 years ago...still working on loads but it does seem to like a few powder/primer/bullet combos and hates others...getting groups from 0.176" to 1.25" with 65, 68, 75 and 77 gr and various seating depths with HV100, Varget, RL 15/17/19, H4350/4831 and 760.

Sie 69 MK were coming apart at 3700 fs with RL17 about 60 yds downrange or when hitting the target but were bugholing at 3600 fs...one gr less.

Seating depth was critical with some combos.
Velos ran from ~3150 fs to ~3700 fs depending, pressures 58K +/- a couple thou.

Zapped a few sage rats out around 250 plus easy enough...still looking for a calm day to get on my 650 yd range to see what the actual drop is.

22 cal needs TLC to do things beyond 500, I don't bother much as I have too many better shooters to use for the very long stuff and my eyes aren't what they used to be and definitely not what ego thought they were. Confused Frowner shocker
 
Posts: 1211 | Registered: 25 January 2014Reply With QuoteReport This Post
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quote:
Originally posted by Idaho Sharpshooter:
I ran the 90gr Berger Match VLD Target numbers yesterday on their ballistic calculator.
Berger's Manual shows 3100fps from a 1:7" twist and a short 26" barrel. BC is pretty good, .281 G7.

The long time favorite load for the 300 Win Mag is the 185gr Match VLD Target at 3100fps. That load has 15" more drift in a 5mph wind at 1000, 22" more drop, and about three times the recoil from a 26" barrel.

Brian Litz is making a believer out of me. As he once said, BC is like diamonds, forever. Velocity is always decaying. Or, something to that effect.


ISS, Your quote apparently belongs to German Salazar- or else he did not properly cite the statement in his article on Accurate Shooter. FYI

http://www.accurateshooter.com...lets-for-long-range/
 
Posts: 1082 | Location: MidWest USA  | Registered: 27 April 2013Reply With QuoteReport This Post
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HP,

Your point is well taken. It is a shame German Salazar left the shooting field. I learned a lot from his writings.

I have all five of Brian Litz's books, and Edition One of the Berger Manual. On Page 376 you will note that ALL of the standard 220 Swift loads with the 90gr Berger Match VLD Target bullet are over 3000fps. The load with RE-19 is 3102fps.

I wrote for Precision Shooting Magazine from mid-1988, to 2000. I got to know Jimmy and Lois Knox (JLK Bullets) fairly well. The Simonson (SP?) 80gr VLD he made the dies for caught my attention. IIRC, in 1993 or 94 I had reamers made for, and a rifle built for the 22-284. I shot those 80gr bullets just over 3600fps.

I am getting barrels from Bartlein in the spring. Both gain twist. A .22 gaining from 7.75 to 6.75" and a 6mm gaining from 8.25 to 7.25" twists. They will be 6mm-284 and 22-284 chamberings.

Curiousity...

take care,

Rich
 
Posts: 23062 | Location: SW Idaho | Registered: 19 December 2005Reply With QuoteReport This Post
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