Power Curves & the Sweet Spot

Re: Power Curves & the Sweet Spot

Postby bullhead » Mon Nov 28, 2016 9:09 am

Great info thanx
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Re: Power Curves & the Sweet Spot

Postby what barn door » Tue Nov 29, 2016 8:25 pm

Or if your a bit handy and have some tools and a good chrono, and you don't want to fit a regulator, you could change or alter the exhaust valve spring and maybe the hammer and it's spring to achieve a slighty improved power curve and shot count, but this is a bit time consuming !
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Re: Power Curves & the Sweet Spot

Postby Backspin66 » Fri Dec 30, 2016 7:33 pm

It seems that every gun has it's personality. My AA S410 .22 has it's sweetspot between 160-105 bar. Don't need a regulator when you know that. Happy New year.
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Re: Power Curves & the Sweet Spot

Postby Mark112 » Thu Jan 05, 2017 4:36 pm

Backspin66 wrote:It seems that every gun has it's personality. My AA S410 .22 has it's sweetspot between 160-105 bar. Don't need a regulator when you know that. Happy New year.

Very true about personality. My carbine .22 has a total spread from 190 bar down to 90 bar of just 19 fps and 98 shots in total. 72 shots of which are within a 10 fps band. I wouldn't bother regulating it as gains are likely to be small. That said my .177s were a different kettle of fish. After regulating my classic I now had 135 shots in a 12 fps window and after letting it settle down and firing a few shots through it I did a 20 shot string just to check power level. This was the result:-

714 712 712 713 715 713 712 713 713 715 714 713 713 712 713 712 714 714 713 713 (thread extract here:- viewtopic.php?f=5&t=3300#p28841)

For me it's a great improvement and well worth the effort although like others I was sceptical about doing it. As you say each rifle is different and some by their very nature will shoot better than others and the gains brought about by regulating will be smaller.

Mark
S410C .177 Regged - MTC Viper 4-16 x 50
S410K .177 Regged - Hawke Nite-Eye 4-16 x 50 AO IR
S410K .22 - Hawke Sport HD 3-9 x 50 AO IR
Logun Mk1 .22 - AGS 3-9 x 40
Theoben Taunus .22 - Simmons 4-12 x 40 AO
BW1911R2
Walther CP99
Webley Premier .22
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Re: Power Curves & the Sweet Spot

Postby what barn door » Fri Jan 27, 2017 10:27 am

Mark112 wrote:
Backspin66 wrote:It seems that every gun has it's personality. My AA S410 .22 has it's sweetspot between 160-105 bar. Don't need a regulator when you know that. Happy New year.

Very true about personality. My carbine .22 has a total spread from 190 bar down to 90 bar of just 19 fps and 98 shots in total. 72 shots of which are within a 10 fps band. I wouldn't bother regulating it as gains are likely to be small. That said my .177s were a different kettle of fish. After regulating my classic I now had 135 shots in a 12 fps window and after letting it settle down and firing a few shots through it I did a 20 shot string just to check power level. This was the result:-

714 712 712 713 715 713 712 713 713 715 714 713 713 712 713 712 714 714 713 713 (thread extract here:- viewtopic.php?f=5&t=3300#p28841)

For me it's a great improvement and well worth the effort although like others I was sceptical about doing it. As you say each rifle is different and some by their very nature will shoot better than others and the gains brought about by regulating will be smaller.

Mark


Good result mate, which reg did you fit?
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