.25 Pellet advice needed.

[angrybear]

Keep us informed how it goes. If thats what we have to do to keep our old springers shooting then so be it.!!

Well slight technical F-up it's a straight shaft machine reamer, not a square drive hand reamer
Now got hand reamers on the way in both 6.2 & 6.25mm.

[robthedog]

I have the TBT .25 sizer

[tim56]

I have the TBT .25 sizer

Ah, I saw that one on e-bay but they didn't have one in the right size. Idealy I would size the head but leave the skirt as is.

[angrybear]

I have the TBT .25 sizer

do you use that with a BSA barrel ?

[robthedog]

do you use that with a BSA barrel ?

No Weihrauch

[les allam]

I got my .25 sizer from U.K.Neil for my Lightning,it improved the loading and increased ftp by 1.5 ,using H&N FTT.
Unfortunately Neil as retired from making Swarf.
Les..

[tim56]

I managed to pick up an old tin of Magnum pellets which if anything are a tad small but at least im able to use the rifle. Got around to
measuring various pellets and had an idea to drill a 6.20 mm hole in bit of 4mm still plate. Poke pellets in to re-size the head and poke
back out from the other side to keep the skirt size standard. If it works I can make up something a bit more elaborate. Have ordered
the drill bit and already have some 4mm plate somewhere in the garage so here goes. Tim

[tim56]

No Weihrauch

What size do your re-sized pellets come out at.???

[angrybear]

Well I've just reamed out my TBT .243" sizer to 6.2mm, couple of pic's to compare how it deforms the pellets,
Problem now is do I need to ream it to 6.25 or not ? obviously need's a test shoot before I decide.

https://ibb.co/rQS6rDw
https://ibb.co/TKPnSLD

[angrybear]

BSA Supersport .243 barrel, 20yds, no name 4x32 scope, no chrono (flat battery)

https://ibb.co/s3drry6

A/ - 5 shots Rhino green straight from the tin.
B/ - 10 shots Pylarm 21.6gn resized head & skirt 6.2mm
C/ - 10 shots Pylarm 21.6gn resized head only 6.2mm
D/ - 10 shots Pylarm 21.6gn not sized.
E/ - 10 shots Pylarm 18.6gn straight from the tin.
F/ - 10 shots Marksman 19gn straight from the tin, the pulled shot was my fault.

well looks like I might have to try the Rhino, Marksman & Pylarm 18gn through the sizer as well
But now I don't want to risk taking it out to 6.25mm without a spare.

[maximus]

BSA Supersport .243 barrel, 20yds, no name 4x32 scope, no chrono (flat battery)

https://ibb.co/s3drry6

A/ - 5 shots Rhino green straight from the tin.
B/ - 10 shots Pylarm 21.6gn resized head & skirt 6.2mm
C/ - 10 shots Pylarm 21.6gn resized head only 6.2mm
D/ - 10 shots Pylarm 21.6gn not sized.
E/ - 10 shots Pylarm 18.6gn straight from the tin.
F/ - 10 shots Marksman 19gn straight from the tin, the pulled shot was my fault.

well looks like I might have to try the Rhino, Marksman & Pylarm 18gn through the sizer as well
But now I don't want to risk taking it out to 6.25mm without a spare.

Might be worth trying FTT after being sized too, they are a quality pellet.

[angrybear]

Might be worth trying FTT after being sized too, they are a quality pellet.

True but if you look at the pic's of the sized pellets above (post#24), even at 6.2 (middle) the FTT skirt is still getting badly smeared/stretched because it starts at almost 6.6mm

[maximus]

True but if you look at the pic's of the sized pellets above (post#24), even at 6.2 (middle) the FTT skirt is still getting badly smeared/stretched because it starts at almost 6.6mm

Ahh, didn't see that, yes a lot of deformation there. Still, some good groups with the pylarm and marksman so not struggling for accuracy.

[tim56]

Bit of an update. Drill bit arrived and I drilled a 6.20 hole in a bit of 4.5mm flat
stock steel. Bit of a leed in with a 10mm bit and good to go. Actually works ok
but is going to be labour intensive. Pellet on a hard surface and a tiny bit of lube.
Press steel plate onto pellet all the way down, turn it over and press down again,
remove pellet. Is re-sizing the head to 6.20mm but not the skirt. Just need to
get a batch done for shooting trials. :-)

[angrybear]

Bit of an update. Drill bit arrived and I drilled a 6.20 hole in a bit of 4.5mm flat
stock steel. Bit of a leed in with a 10mm bit and good to go. Actually works ok
but is going to be labour intensive. Pellet on a hard surface and a tiny bit of lube.
Press steel plate onto pellet all the way down, turn it over and press down again,
remove pellet. Is re-sizing the head to 6.20mm but not the skirt. Just need to
get a batch done for shooting trials. :-)

If you look at my target post#25 sized head only was very poor compared to head & skirt sizing with the new Pylarm

I've just had a further play this morning using the 6.2 to resize the 3 brands which already fit (rhino green, old pylarm, marksman)
Shot a group from the tin then a group resized, interesting results.

All resized groups lost power/velocity,
Rhino -11fps, 10.13-9.68ftlb
Pylam -13fps, 10.16-9.64ftlb
Marksman -8fps, 9.67-9.47ftlb

Marksman group fractionally better, Pylarm no change, Rhino group worse & 3 shots hit side on ,
so I won't bother to resize any of these again.