Okay, i have officially watched every video i can find on slugs ATLEAST 3 times and still, i struggle to get my .25 700mm liner to shoot. If i was happy with 2” groups at 100, i might settle with what i have now. But here i sit after watching Matt’s new video shooting ground squirrels at 200+ yards and wonder where I’m going wrong. I’ve tried Nielsen and VK slugs of various weights and speeds anywhere from 880-970, tried to harmonically tune my impact, tried MAX, A,B,5, and 4 on the hammer wheel, still spinning my wheels. Cleaned the liner, not cleaned the liner, lube, don’t lube, and it’s all the same results. And i promise, it’s the bow, not the Indian. I just tuned a buddies .30 MKll around .85” average at 100 with me shooting... thing is a beast. So at this point, someone just tell me where to send it. I’ll pay to have this thing tuned for sub MOA groups. I’m starting to think it’s impossible with my gun/liner combo.
Slug Tuning. Calling all slug experts!!!
- Thread starter Kerbow01
- Start date
Jking
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Specifically what weight NSA slugs did you try? Also have you tried a lower speed? Sounds crazy, but I've seen slightly lower speeds shoot slugs better in some cases.
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I am no expert. I had very similar results during my testing and it was a long, frustrating process to figure out my first slug liner. Many people I talked to with the .25 cal. FX liner experienced similar results and there wasn’t much info. available for the .25 liner to help us out. During the course of testing I did find a couple of things that tightened up my groups. First, I polished my barrel. The first time I lightly polished it and there was little effect. The second time I polished it, I was much more aggressive and it helped shrink the group size. I also lubed all of my slugs which helped a bit. After my group size got a lot smaller with fewer fliers, I narrowed down the slugs to the 3-4 that were shooting the best. I found that the best slugs all had a slightly dished or flat base and a large hollow point. From there it was a slow and deliberate process to find the best tune. This was with a 600mm liner in .25 cal. I just received a 700mm liner for my .25 Impact a few days ago and started testing again. This time I’ll test the 4 best performing slugs from previous testing and some of Nick Nielsen’s new slugs.
Stoti
Stoti
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25 or 30 mts they do not have to do with you zero ? In your Rifle? Bob when you did not get the three shots in the same hole, you lowered the hammer, when you claimed the regulator, you started to raise the hammer where you had left?
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Not sure what you're asking exactly.
Once I got the velocity tuned to 940fps, I reduced velocity in very small increments, shooting a 3-shot group each time. When none of it panned out, I changed the reg pressure and started back over at 940fps.
Fine tuning is done with the valve adjuster. You could also do it with the hammer spring if you choose.
Once I got the velocity tuned to 940fps, I reduced velocity in very small increments, shooting a 3-shot group each time. When none of it panned out, I changed the reg pressure and started back over at 940fps.
Fine tuning is done with the valve adjuster. You could also do it with the hammer spring if you choose.
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Sorry Bob, is you ok, with the valve adjuster when you finish the first time and no have the three shots in one hole your valve adjuster stay in the first line for example, when you start again of new tuning you take the valve to four line or you start in the line one(from bottom to top). Thank you for your patience
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