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Goes back to 1956-2011.
Lots of good articles (and adverts...$16 for a new scope!) to keep you busy on a wet day.
Rifles, pistols, etc.
Select which one to open, then look on left side for 3 'Dots'.
Click on that to download.
Might be of interest to some of you.
https://archive.org/details/@sturedman2021?sort=title
For Guns & Gun culture lists (including air guns, military, handloading, etc)...
https://archive.org/details/gunmagazines
Great. I love the articles in those old mags:
Tried a Johnson gain-twist barrel in 30, in a .30/338 bullgun. Results; undersize bore—about .29975”. Decided to try anyway. No pressure troubles with heavy loads—69 grs. 4350 and 200 gr. Sierra. Dropped to 67 grs. for shooting, account of 67 gives as good results on target at long range. Very skimpy 200 yard testing, but the 200 gr. bullet obviougly [better than 190 or 180. No extraction problems, no primer worries. Only, shoot about ten shots and bullets start coming apart in the air, anywhere from 50 to 200 yards out. At 1000 yards, first nine shots good for V ring, tenth didn’t get there. Am wondering if the under-size bore means rifling cutting so deep that jackets weaken and open up from the centrifugal force of spin. Barrel was zero to 10” twist. Heat of firing of course constricts bore initially, or at least I’ve always figured that the bore heats first, constricts, then as the entire mass of barrel
Would the bore not increase as it heated?
Guns Australia was my favourite in the late 80s and 90s. Had lots of great articles and a great q&a section from Nic HarveyQuote:
Originally Posted by Grey Kiwi
I wish I had kept them all
I have years of hard copies and Accurate Rifle mags if anyone is looking for particular writers or topics…
I would assume that as the inner surface heats up first, the outer diameter would (relatively speaking) stay the same, so the initial expansion would displace into the bore and thus cause a lessening of the diameter.Quote:
Originally Posted by Fee Knicks
It would be interesting to see a temperature gradient across the section of the barrel.