| buckstix |
| (.400 member) |
| 26/05/25 07:31 AM |
|
Re: I bought an Isac Hollis 8 Bore Big game rifle - what to load
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Quote:
Calculation shows that getting 1400 fps would raise recoil from 58 lbs to over 130 lbs. I'm not sure if I would be better off just raising the front sight so impact would be 4" lower at 25 yards. If sighted 3" high at 25 yards, it would be dead-on at 100 yards.
Well, that's what I did. Instead of increasing velocity to lower the impact, I raised the front site. According to my math, I needed to raise the front site by 0.12" which would result in hitting 3" high at 25 yards, thus being dead-on at 100 yards. As I have done on some of my other rifles, I glued on a small copper hood over the original site. This is easily removed by heating with a match so that the original site is not harmed. Next trip to the range should tell if I'm successful.
http://www.buckstix.com/buckpics/8-bore-site-redo.jpg
