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Old 14th February 2012, 11:27 PM
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Excellent work there, good methodology given what test equipment you had to hand and good findings too.
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Old 14th February 2012, 11:44 PM
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its not bad to say the ripley was only running at 10 and a half foot pound compare to others mmmm
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Old 15th February 2012, 07:55 AM
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Originally Posted by Conor View Post
It's Valentine's night and all we are going on about is lock-times, tea leaves, double dip recessions, predicting the future and lotto numbers!

Enough is enough lads, I'm off to snuggle up to the one love in my where did I put my gun cabinet keys
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Old 15th February 2012, 08:06 AM
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Originally Posted by maestro View Post
The most important thing is that between what we THINK when we release the shoot and when we REALLY DO release the shot is 120 ms, which is about 20 times more than the lock-time of an average rifle. This suggests two things:
- Making huge efforts to reduce the lock time with 1-2 ms is not too effective.
- Doing follow through is damned very über mega effective.
Very nice article , glad it arrives at the same conclusions I had formed a long time ago. There was an article floating around (probably a link on here) about lock times of the euro 10m guns, and the figures concur.

The difference with different pellets suggest that harmonic dampening needs looking at carefully to see if it's actually working, or doing something else. That's something that was used as a sales tactic by one manufacturer, and as you show, the lock time changes when pellets change, so the barrel can't be in the same place at a different time.

It would be interesting for a blind test to see if people can feel the difference in 1-2 ms they think they can. It's been a bit of sales banter for ages

Follow through is probably the most overlooked part of the shooting process, but in H/FT one of the most valuable.
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Old 15th February 2012, 08:20 AM
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Old 15th February 2012, 09:57 AM
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Great work, and very interesting article Maestro. You have found the answer, the follow-through with all that implies. We could have the perfect weapon, but our results will depend directly on our way to shoot.
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Old 15th February 2012, 09:58 AM
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Default follow through 1 - Lock time 0

all the modern rifles i have shot (walther, Ev2, styer etc) feel quick to shoot. Pellet is striking the target almost instantly it seems.

should put my old Njr in the test, now that is slow and poor follow through on it is much less forgiving.
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Old 15th February 2012, 11:48 AM
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Quick or slow lock time..? As long as i hit more targets than "ANDREW GILLOT" then im happy..ha ha
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Old 15th February 2012, 12:15 PM
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The chrono was always very close to the muzzle, about 10-15 cm so I took that velocity as the muzzle velocity.

Testing with different muzzle breaks wouldn't have had too much reason because neither the time what pellet spends in the rifle nor the pellet flight is really affected from them.

I measured the muzzle-microphone distances, too - I had to know it for the reflected sound's travel.

Most of the rifles had some kind of silencer or air stripper. I measured everything from the real muzzle.

Each modern PCP rifles finished in a tight range of 4.5-6.5 ms and that Ripley with Express and 11.5 ft-lb energy could have had better results - but I dont't think that anybody would be able to feel 1-2 ms difference.

Regarding the time diffs between Ripley and EV2, you've been warned not to take these results as a competition between the rifles:
So if your rifle has 0.2 ms less lock-time than your fellow shooters' then don't mock them too loudly because all these results are to be understood with ±0.5 ms tolerance...
Once again, don't meditate too much over the fractions, what matters is before the comma my friends.
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Old 15th February 2012, 12:48 PM
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Originally Posted by Matt View Post

The test is interesting but I do have questions with regards the results between the Ripley and Ev2 - many perceive the Ripley to be faster than the EV2 but yet the results do not bear this out?

That's what i've always said. From looking at the data, it concurs with data i've seen, ie the lock time is in the order of single ms figures. Given that's 300x faster than the average human reaction time, it's not something I can say someone will be able to detect.

Personally I think what people feel is actually action vibration, and/or hammer weight/energy. Walthers have a coach bolt for a hammer and seem more 'recoily', where as other rifles have lighter/smaller hammers and feel less thumpy... the rifle i felt was the snappiest was a p70 in a wooden stock, but it was also the deadest in terms of action vibration. People assume springers are slower, which they are, but they aren't in the massive order of slowness I was thinking they would be. Perhaps their vibration adds to the slow feel... and perhaps recoil/vibration disturbing the follow through is something that makes a rifle feel slower?
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