.25 Impact JSB 33.95 pellet speed
- Thread starter archerhmr
- Start date
Here's a good video on the subject with a 700mm barrel. I have a 600mm, but found this very useful using the 34 gr pellet. (33.95)
https://www.youtube.com/watch?v=KDvuMwjwk9M
https://www.youtube.com/watch?v=KDvuMwjwk9M
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I'm shooting at 960. That's my gun in the video. That's what Keith and Norm recommended for long range stability.
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What's your reg set at? Can only get mine to about 920 with ER power plenum, porting work and spring maxed out. Perhaps I need a stiffer spring?
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I push mine as fast as I can. My impact with ported transfer port and probe is pushing 33.9 heavy at 930 fps. This is with the 600mm slug liner. It is accurate from 850-930 in my testing.
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With the 700mm slug liner I find the JSB 33.95 pellets very accurate at 740fps up to and past 940fps. With accuracy nodes every 20fps or so when tuning. I am shooting the NSA .25 36.2 slugs at 980fps and they are deadly at 200 yards.
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I guess I am the odd ball haha I am shooting them out of a 600mm barrel at 855-858 currently and tickled silly happy with accuracy at this speed. my reg is near 105 bar area. shots galore (another way of saying more than I ever use will hunting or pesting ) lol
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I'm shooting the JSB 34 heavy's @910 fps 600mm S/T pellet on pellet at 60yards 70 shots per fill 250bar-115bar. Rarely do I get a chance to shoot 100+ but have knocked a few shotgun shells around out to 130 yards.
Mine shoots jsb 33.95 @950 with the port and probe work but l have a stock impact mk2 and my regulator is 160 bar. I found that 36.2 nsa slugs are the easiest to tune and speed ended up being 910fps, but I mostly turn the power wheel down to min. or 1 and 2 to shoot the jsb 25gr on calm target shooting days and get a lot more shots.
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Do you have a 700mm slug barrel? Shoot pellets with it? I'm still looking for someone who has one in stock.
Did you try the lighter NSA's? I noticed they aren't very side shot magazine friendly.
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Yes I have a 700mm slug liner, I have shot lighter weight slugs but the nsa 36.2 slugs are much easier to tune. Also the jsb 34gr shoots great @950 FPS I believe that is do the pellets shape and twist rate of the slug liner. Also the slugs and pellets have identical groups @50-75-100yds. Hope that is helpful
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I have MK2s traveling at 915 fps MV from my 700mm. I really like this pellet when you find a bore that sends them with precision.
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I am still on a learning curve tuning my new 25 cal Impact MK2 PP, 700 mm pellet liner, Huma dual port and elongated pellet probe, JSB 33.95 pellets, 925 fps @ 115 bar.
At my place in April we still drive cars with winter tires, the average day temps still below 5C. I did not have a chance to go out yet and setup my scope for long range, not wise these days to pickup a cold. Mostly making noise destroying and rebuilding my pellet trap in the basement. Anyway, a Question:
- I did not meant to get a 25 slug liner but if you guys recommend shooting slugs in slug liner instead of shooting slugs in a pellet liner me better get one until my supplier have a very last one on shefl's.
So, is the expense justified for slug liner over a pellet liner? I am looking towards shooting longer ranges. Thx
At my place in April we still drive cars with winter tires, the average day temps still below 5C. I did not have a chance to go out yet and setup my scope for long range, not wise these days to pickup a cold. Mostly making noise destroying and rebuilding my pellet trap in the basement. Anyway, a Question:
- I did not meant to get a 25 slug liner but if you guys recommend shooting slugs in slug liner instead of shooting slugs in a pellet liner me better get one until my supplier have a very last one on shefl's.
So, is the expense justified for slug liner over a pellet liner? I am looking towards shooting longer ranges. Thx
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My Impact's pellet liner does not play well with slugs. Super accurate with JSB 33.95's though. That seems to be the norm. On the other hand, I've heard people say their slug liner does well with pellets. Makes you wonder if FX shouldn't just sell their guns with slug liners standard.
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I think Matt Dubber said in one of his videos, the pellets will "climb" or "drop" a litle more when having side winds, compared to the pellet liners. If the wind is blowing from right to left, the faster right hand spin in a slug liner will lead to the POI going left, and higher, than on a pellet liner. It will be opposite when wind blows from other direction, POI going right and a litle more down. But if not shooting in competition it probably does not matter.
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