Best Ft Lbs For A Target Rifle

[Darrenm 0]

Hi guys, I was wondering what ft lbs is the best in a hw97 for hft, I've had a SFS stage 1 tune and it currently runs at 11.81 ft lbs with superdomes and was wondering if my 20 mm groupings at 35 yards could be improved by reducing the power?

Darren

[robwelsh 354]

Try different pellets

[ghillies 209]

unfortunatly you need to test the gun with various innerds, with various pellets at various powers, anything from 10.4 10.5 is adequate when its running.

 

there'll be 1 or 2 odd that have just that 'thing'.

 

hmm..and scopes on top, piddling with the angle and height.

 

if your a bigginer just go with what you have now, because it takes a bit of exsperience to really tell what suits you best. but, an inacurate set up you'll notise very quick, anything better will be a plus or an upgrade later as you get into it.

Edited January 21, 2013 by ghillies

[pianoman 3,589]

No offence intended but, It could be your technique needs a little refinement Darren? Sandwell Field Sport's tuning is absolutely first class and your superdome pellet would come recommended by them as the best for the rifle, I would have thought.

 

If your 20mm groups are consistent then. the rifle and pellet is showing consistency but your hold is not! Without watching you shoot I cannot comment much further but you should be a lot tighter at this range, than this.

 

You haven't said what calibre but, I'm guessing it's .177 as you wish to use it for HFT. It could be a running-in or settling down issue. Shoot another 1.000 rounds through it and start to rebuild your shooting from scratch with it.

 

If you feel it's a pellet issue, try H&N FTT, Air Arms Fields, JSB Exacts, Bisley Magnums (HW97s seem to love magnum rounds) Daystate Rangemaster Li.

 

Power-wise your rifle can compete very effectively at 09+ Ft/lbs to the legal maximum....It's purely accuracy where the real power lies in any air rifle :thumbs:

 

ATB

Pianoman

[ghillies 209]

accupels can be suprisingly good, if they'll suit the barrel.

[Darrenm 0]

Thanks for your replies; I've been shooting targets for a while and i use the artilary hold, i know SFS tunes are exellent and Tony's a true gent but something does'nt add up.

The only thing it could be is that the 97 has'nt settled down, to be fair it's only had 400 pellets through it.

 

I'm getting 8 mm groupings with my 95 over the same distance, and the 95 and the 97 were always as accurate as each other with superdomes.

Initially the 97 was really twangy and kicked like a mule until Tony worked his magic.

 

I've probably not given the 97 time to settle down being the impatient bugar I am and I will try a few different pellets through and see if its pellet fussy.

I would love someone to explain why one pellet would be less accurate as another when it's of the same weight?

Thanks for your help

Darren

[Darrenm 0]

It's funny you recommend bisley magnums; some one gave me a tin last year and they were excellent in both guns, but someone in the club said they were too heavy for a springer and that the would cause issues with the seal etc if I kept using them?

Darren

[zini 1,939]

Different barrels have different lans and grooves depth and width.

 

Different pellet brands are made from different lead types, ie some soft and some harder.

 

This said the difference between 4.52 and 4.53 can make a huge difference at range on a target card.

 

Its a combination of how the pellets lead interacts in a non chemical way to the width and depth of the barrel as the rifle is shot.

 

I have noticed that the BSA barrels ive owned in the past r10's and Ultras like 4.53 and 5.53mm pellets, caliber depending.

 

My old hw100 s though worked better with 4.51 mm pellets so small diameter pellets.

 

Its just a case of trying different combinations till your happy mate.

 

I also dont think 400 pellets is quite enough to have fully bedded in your newly tuned rifle.

 

500 to more like 1000 is a better number mate.

 

Si.

 

 

[ghillies 209]

unfortunatly a gun sort of runs in and out of its 'best'

 

first reason is age and quolity, some have stood thetest of time into the 25 years bracket..alas, new barrels n bits is inevatable once you start putting the hours in. (weirach have stood the time test and did it earlier than most..i.e. the 70's with guns that would hit at 50 yards time after time when every bugger else was mass producing 30 yarder guns..)

 

basically as zini said, try a few see what you think, half of it is in the head any way, as in if you dont like/cant get on with it it pisses you off, yu cant reach your full potential when your in turmoil..hense the barricking and 'you cant do that or ooo that'll blow yu gun up and kill everyone stuff.. be carefull what you listen too, the airgun mags being a definate deaf ear lol.

 

piston seals can be a start of an unknown problem, the spring goes.. an oldy but classick was the old titen springs in the 's, both fac and legal springs had this amaizing consistency, sort of a duller twang then a power drop after three weeks, then they'd go a few more weeks and change again..and again, i threw 2 inthe bin after a month, they werent cheap then eather..

greasing the spring..too much or too little dont help none..deisiling, well, its fun for them couple shots but wears stuff out a lot quicker than you'd like..can lead to scorching up the piston, uncentering the piston cap, miss shaping the cap..all maintenance issies basically.

 

so a desent 'tune' and a good piston seal offer longer bouts of hot on..weather can play a trick or too, so its all about getting out there and doing it, and unfortunatly fixing problems.. you need to know yourself, because each time it goes into the shop your not using it for a week or two..thats losing touch.

 

pellets... they change shape size and weight as well as hardness, its minutely but enough, so again it's a case of buying in bulk, thats longer patch's of the same pellet same tune up.

then your barrel 'bedding in', yes it does, some barrels like a good bed and a rareclean, others need a good clean (but noth e wire brush n past complete clean', whilste my old HW80 was a leave it alone, every couple three days one oiled pellet went through to stop rust basically then every three month or less it was a propper pull through, half hour jobby, then 100 odd pellets through in the back yard to bed in, then as i used it it got better, flew for a few weeks then back to guesing weather a light or a full pull through clean.

i've read and heard a few say get a pellet sizer, once you know what size n brand is your chosen one lol. weighing does help a lot..lubing? runs nicer but i'm still out on that one, that and cant be arsed after weighing a few hundred..(buy in batchs you can save three weights off..and use one weight then the next, not mixing and changing..every little helps over a 12 month course).

 

get it rong it costs in weeks...so yu have to live n learn it.

 

thats the extreme of it..try it, see what yu think....the more you do the better at 'guesing it right' you get..the rest is remembering lol.

Edited January 22, 2013 by ghillies

[Darrenm 0]

Thanks guys it's very much appreciated; I don't expect too much when I go out shooting, I spend half an hour on the range, shoot a few targets and have plenty of banter.

I'm learning slowly and enjoying it along the way and your comment all add to that.

I'll keep practising and run a few more shots through the 97 before changing anything else.

Cheers

Darren