I filed the Norinco's front sight from a 0.070" rectangle to a 0.040" taper. I also tapered it forward on the top and sides so any light hitting those faces couldn't affect my picture. Results were decent with 50% on the chicken and pig, 40% on the turkey. But I only managed 20% hits on the ram as it was too dark to make out the white target against the tan board.
I've got a 7/32"-40tpi die coming so I can make some apertures next week. And the FP336 peep arrived yesterday for the Marlin. I made the mistake of mounting it immediately, forgetting I'd just loaded test rounds with six different bullets. The scope would be preferable for load development.
I shot all jacketed bullets first to avoid them being affected by lead in the bore. I loaded them all on 8gn of Trailboss to keep them just subsonic - I wasn't wearing ears.
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The 265gn FTX didnt shoot well last time and I didn't expect it to do any better this time, so I used those to put the sight on paper at 25m. From a seated position the first went wide of the target to the left, so I adjusted the sight then put the next four into a 120mm group...at 25m. These are also too long to cycle through the tube even with 20% compression of the powder.
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Next the Nolser 240gn JHP put five into a 50mm group at 50m resting across a front bag on a chair - very nice.
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The 180gn XTP put five into a group 75mm wide but 200mm high - they might be worth testing again. These had a crack to them so I think they went supersonic.
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240gn Berry's HP Copper Plated went into a 120mm group.
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240gn Berry's Keith-style hard-cast went into a group 130mm high but only 50mm wide - worth more testing.
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232gn CBE cast RN (3 parts 7-1/2 shot to 1 part 60/40 solder) sized to .432", checked, and painted with Alox went into about a 130mm group. I fired one round at the wrong target.
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