Can I ask what is the maximum velocity anyone has achieved using these whilst still grouping well.
JSB HEAVIES 10.34g .177 MAX VELOCITY
- Thread starter Spray1Mark
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They dont shoot great in my gun but I get 3/4 inch at 25 yards. Gun shoots most pellets in the 1000fps range. D9nt have a chrony but these are definitely moving slower.
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depends on what you would call a good group and at what range..if you can tell me that I can tell you my experience with them.
how many mm ctc and at what range and how many shots to a group.
I will do my best to help
how many mm ctc and at what range and how many shots to a group.
I will do my best to help
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I just looked it up... I think if anyone can find an air gun that will do groups of less than half a 1mm ctc at 25 yards it will be amount the most accurate airgun ever made,
as for me im a bench shooter. I shoot a raw bm500 with both polygonal and lotharwalter barrels..... there is a defiinate difference in them as well as finding the right lot# batch on the tin....and there is a big difference in accuracy from lot# to lot number#
and both my barrels like different speeds. my poly barrel like to be shot a a higher fps.. and as well the poly barrel tends to drift less in the wind at long rage.
I have an airwolf daystate in 177 as well and I can shoot just as accurate at 100 with my raw as the airwolf can do at 75 yards. even thou both are doing the same fps.
and consistant accuracy is a lot different than the odd great group one might do in a shooting session.
if a gun can do 2 mm ctc consitantly at 25 yards indoors. all day long and the odd group does not go over 3.5 mm ctc that shooter will have a world class airgun reguardless of fps.
as you stated its indoors shooting theres no wind to contend with.
as for me im a bench shooter. I shoot a raw bm500 with both polygonal and lotharwalter barrels..... there is a defiinate difference in them as well as finding the right lot# batch on the tin....and there is a big difference in accuracy from lot# to lot number#
and both my barrels like different speeds. my poly barrel like to be shot a a higher fps.. and as well the poly barrel tends to drift less in the wind at long rage.
I have an airwolf daystate in 177 as well and I can shoot just as accurate at 100 with my raw as the airwolf can do at 75 yards. even thou both are doing the same fps.
and consistant accuracy is a lot different than the odd great group one might do in a shooting session.
if a gun can do 2 mm ctc consitantly at 25 yards indoors. all day long and the odd group does not go over 3.5 mm ctc that shooter will have a world class airgun reguardless of fps.
as you stated its indoors shooting theres no wind to contend with.
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thae ranges I shoot my raw bm500 .177 are 25 meters.. yes meters 50, 75, 100, 125 and 150.
and the pellets that shhot best at over 100 yards a lot of times arnt the best shooting at 25 meters...so it all comes down to doing a lot of testing and lots of it.
but that's the fun of this sport.
and the pellets that shhot best at over 100 yards a lot of times arnt the best shooting at 25 meters...so it all comes down to doing a lot of testing and lots of it.
but that's the fun of this sport.
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My first TM1000 in .177 was shooting 3/4 inch groups at fifty yards at 875 FPS with LW barrel, not a poly barrel. After about four months of use I started missing a lot of long shots in field target. I shot some groups and they were about 4 inches in diameter at 50 yards. I checked the velocity and it had gone up to 915 FPS. I mounted my 240 frames part second camera and it showed spiraling with the 10.3s. Reduced speed using hammer spring adjustment back to 875 and all was well. Same gun with LW Polygonal barrel will shoot half inch groups at 800 FPS using 13.4 grain JSBs most of the time.
My Airwolf MVT in .177 and 10.3s shot tighter groups at 900 than 875. With the Daystate the barrel has to be cleaned more often to hold good groups, at least every 200 rounds. They actually recommend lubing pellets to keep barrel clean.
My Airwolf MVT in .177 and 10.3s shot tighter groups at 900 than 875. With the Daystate the barrel has to be cleaned more often to hold good groups, at least every 200 rounds. They actually recommend lubing pellets to keep barrel clean.
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With my .177 Brocock Bantam, you can see by my previous post that velocity makes a big difference, even with changes of only 25 to 30 FPS. Shooting the 10.3 JSB at 950 resulted in unacceptable groups, quarter sized. Moving the selector from High to Medium reduced the speed by about 25 to 30 FPS, and resulted in penny sized groups. The most experienced, best shooter at my airgun club told me that taking it down to between 890 and 900 fps would result in dime size or better groups at 52 yards. I haven't done that yet, but I do plan to. See link below for previous post... I've been told that the penny sized groups at 52 yards are the minimally acceptable sized groups to be competitive in Field Target, but dime sized groups at 52 yards are preferable...
https://www.airgunnation.com/topic/177-brocock-bantam-52-yard-groups-various-pellets-and-speeds/
https://www.airgunnation.com/topic/177-brocock-bantam-52-yard-groups-various-pellets-and-speeds/
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MAX, all depends on your barrels, not the pellet.Just over 1,000 for the 10.3 jsb. The 8.4 is often more accurate at range and will take even a bit more speed.
Depends on the barrel.
JOhn
Depends on the barrel.
JOhn
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my raw bm500 177 came from martin doing 920... groups were great at 50.. but when I tuned it down to 880... my groups went from good to great... I started getting bench rest groups at 880..this is out doors
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10.34's have become my core pellet. Was the 8.4's for many years. Don't know if the cause is the change in rifles or in the pellets over the years, Still, I have had the same experience that many note above. Around 880-910 has been best. I have one gun that shoots them great to 45-60y at close to 1000 but that falls apart fast at 75y.Havent shot that 'hot' closer. I really don't shoot .177 past 55y other than at cans so it hasn't really been an issue.
Whether its the pellets, the rifle or me, I cant even come close to the group sizes you reference. But then, even then, while I don't go to matches very often, I'm judging my results (for .177) by FT sizes. Dime size groups at 30y is 'easy' with most of my .177s and 10.34 at 880ish.
Whether its the pellets, the rifle or me, I cant even come close to the group sizes you reference. But then, even then, while I don't go to matches very often, I'm judging my results (for .177) by FT sizes. Dime size groups at 30y is 'easy' with most of my .177s and 10.34 at 880ish.
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0.1" is one tenth of one inch i.e. 100 thou, one 1mm being aproximately 40 thou makes it 2.5mm plus pellet diameter .177 (4.5mm) 7mm outside measurement.
Here is a 25 shot group shot tonight .300 outside measurement, shot with Daystate Redwolf in .177 with JSB 8.44g.
Here is a 25 shot group shot tonight .300 outside measurement, shot with Daystate Redwolf in .177 with JSB 8.44g.
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LOL! thanks, we do have BR 50m & 25m postal league here in the UK, I am thinking of actually taking part!
Truthfully the two guns I don't have to put any work into to shoot groups like that are my Redwolfs and 9015 Anschutz (just sold).
Still the RW far outweighs the 9015 in fun factor, looks? well there is no comparison.
I bought 3 FX Crowns, the best the Crown could manage tonight 25 shots was .525, the RW consistently puts in groups like these, I honestly think the RW is the gun for all other manufacturers to compete with full stop.
Considering the RW is far from ideal for off the bench shooting the results are remarkable, that group was done with a front & rear bag.
25 shots gave FPS of 782-783! that was it, it's unbelivable! the Crown gave a spread of 20FPS over the same string!
Truthfully the two guns I don't have to put any work into to shoot groups like that are my Redwolfs and 9015 Anschutz (just sold).
Still the RW far outweighs the 9015 in fun factor, looks? well there is no comparison.
I bought 3 FX Crowns, the best the Crown could manage tonight 25 shots was .525, the RW consistently puts in groups like these, I honestly think the RW is the gun for all other manufacturers to compete with full stop.
Considering the RW is far from ideal for off the bench shooting the results are remarkable, that group was done with a front & rear bag.
25 shots gave FPS of 782-783! that was it, it's unbelivable! the Crown gave a spread of 20FPS over the same string!
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I often get one hole groups at 40 yards out of my Wolverine "R" using the JSB's and running them at 890.
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