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help .17 fireball


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not many gun shops stock stuff for the 17 mike you might be better off buying some rounds from gunshops in your area if you can find any till your gear arrives from midway i use them by the way and they,ve always been pretty quick with delivery if your ever stuck for bullet heads and your ever near blackpool drop me a pm ive got plenty i will always sort you some out. regards mike.

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sorted countryman of derby sorted me some brass so i can home load from the off. :thumbs:

 

this is what I done. instead of buying dear factory ammo I loaded up 20 rounds of 20 grain v max in remmy brass and remington 7 and 1/2 primers.

 

with h322 powder at start load of 18 grains. this was to get zero and run barrel in. mind it was that warm today the heat haze was making problems.

so didnt test the other loads i had made.

 

the heat also played with the fps speed today. book for start load on 18 grains says 3600 fps over the chrono i got a average of 4033 fps !

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same as jamie,

i am running my barrel in one shot a day and leaving to soak in boar foam.the rounds i made , start load was 18.5 with the max bieng 20 benchmark.had serched the net and decided to try 19grn as that was posted as good for accuracy.i had what i think is called puddleing in the primer and will have to back it off by .5 of a grain to the min.i wonder if that was becouse of the heat?

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same as jamie,

i am running my barrel in one shot a day and leaving to soak in boar foam.the rounds i made , start load was 18.5 with the max bieng 20 benchmark.had serched the net and decided to try 19grn as that was posted as good for accuracy.i had what i think is called puddleing in the primer and will have to back it off by .5 of a grain to the min.i wonder if that was becouse of the heat?

 

mike I have loaded for 222,223 and 22/250 but this is my 1 st time with the 17 calibre rifles.

 

my mates have loaded for them though and they said to me the pressure can spike very fast in them. so your better going .2 of a grain up in charge and when close to top charge if you get around that. .1 grains at a time. .5 is a big leap for a little calibre like this.

 

so go up in .2 mike and your more then likely find your accuracy spot to then

Edited by jamie g
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dropped it to min powder charge and still had signs . on closer inspection the neck of the brass is missformed and has a shiney edge when fired.when i bought the rem brass the necks were trumpet shaped at the end,i thought thats not good so i ran them through the full length die and it sorted it.when i went to trim it turned out my l.e.wilson trimmer needed a special cutter for the .17cal :wallbash: i thought ok i am not worried about accuracy whilst shooting the barrel in and ordered one.now looking at the fired brass i am worried that the chamber is so short that the brass cannot expand fully and this is causing pressure.i am going to trim a case by hand and see if it sorts it.

 

any thoughts?

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dropped it to min powder charge and still had signs . on closer inspection the neck of the brass is missformed and has a shiney edge when fired.when i bought the rem brass the necks were trumpet shaped at the end,i thought thats not good so i ran them through the full length die and it sorted it.when i went to trim it turned out my l.e.wilson trimmer needed a special cutter for the .17cal :wallbash: i thought ok i am not worried about accuracy whilst shooting the barrel in and ordered one.now looking at the fired brass i am worried that the chamber is so short that the brass cannot expand fully and this is causing pressure.i am going to trim a case by hand and see if it sorts it.

 

any thoughts?

 

i have trimmed a case and fired a round and again it had a flat spot on the neck and preasure signs

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dropped it to min powder charge and still had signs . on closer inspection the neck of the brass is missformed and has a shiney edge when fired.when i bought the rem brass the necks were trumpet shaped at the end,i thought thats not good so i ran them through the full length die and it sorted it.when i went to trim it turned out my l.e.wilson trimmer needed a special cutter for the .17cal :wallbash: i thought ok i am not worried about accuracy whilst shooting the barrel in and ordered one.now looking at the fired brass i am worried that the chamber is so short that the brass cannot expand fully and this is causing pressure.i am going to trim a case by hand and see if it sorts it.

 

any thoughts?

 

i have trimmed a case and fired a round and again it had a flat spot on the neck and preasure signs

 

hi mate you need the 17 fb case holder for the trimmer. and you need the 17 cutter. I had to buy that when I got a Wilson trimmer a couple of weeks ago.

get them and then trim all your brass to length. dont forget to chamfer inside and outside of the case.

 

as the bullets are a tight fit I found if you don't chamfer as you seat them. you can see it mark and scrap some of the brass off round the neck.

my mate mike had problems with pressure in his fb when he 1st had it.

 

have you give it a good clean. there isnt any carbon built up in the neck is there ?

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yep sorry guys,i sent you a pm jamie.the flat spot was caused by such a strong ejector and according to edgar bros the preasure sighns are normal :icon_eek: i am still waiting for a comfermation e- mail tho.how is your load developement going ? for me benchmark is not yielding anything special yet.

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yep sorry guys,i sent you a pm jamie.the flat spot was caused by such a strong ejector and according to edgar bros the preasure sighns are normal :icon_eek: i am still waiting for a comfermation e- mail tho.how is your load developement going ? for me benchmark is not yielding anything special yet.

 

i hear the remmy firing pin can be abit over bore on them. which makes your primers look like there hitting pressure. as for my loads mate havent had chance to get out. knee high in grass over my shoot at moment

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