10-18-2020, 12:05 AM | #1 |
Join Date: Feb 2014
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A successful 3 round burst
If I am firing my mp5 in 3 round burst mode at a target 15 metres away and I'm an average shot , as a rule of thumb each time I fire a burst ,how often should I be able to put the 3 rounds accurately into the target?
Is an 70% to 80% success rate too high? |
10-18-2020, 01:07 AM | #2 |
Join Date: Nov 2015
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Re: A successful 3 round burst
That depends on whether you're aiming and doing All-Out Attack, but most people don't have enough Guns (SMG) skill to hit with all 3 rounds in combat
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10-18-2020, 04:07 AM | #3 |
Join Date: Feb 2014
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Re: A successful 3 round burst
Ah, so I should expect to get say 2 out of 3 bullets on target about , what 70% of the time?
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10-18-2020, 04:31 AM | #4 |
Join Date: Aug 2005
Location: Denmark
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Re: A successful 3 round burst
You can't really compare "target practice accuracy" with "combat accuracy". I am no expert on this at all, but it's been discussed many times on these boards.
Out of combat target practice should assume +1 All out attack. +4 (out of combat bonus). +Acc from aim, and likely up to +2 more for additional aiming. For an MP5 thats +1+4+4+2 = +11. 15y range is -5. MP5 has Rcl of 2. So in order to hit with all 3 shots you would need to succeed by 4. So in order to hit with all 3 rounds, 70% of the time. You just need a base gun skill of 10. --- However with that skill in actual combat, it drops to a 25% chance to hit with all 3 rounds. Or something like 18%-10% if the target is Dodging. I personally have reworked the ROF table, to give +1 to hit already on RoF:3. |
10-18-2020, 04:39 AM | #5 |
Join Date: Oct 2005
Location: Göttingen, Germany
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Re: A successful 3 round burst
This! At first, in nearly all GURPS situations, it is very important to be aware of the circumstances of the situation (see Task Difficulty in BS), this is not an adventuring task (no stress, no opposition etc.!). If this a normal "relaxed" situation for you, typically you would start with modifiers at +5 here. Also things like "braced" could apply (High-Tech) etc.
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10-18-2020, 05:25 AM | #6 |
Join Date: Jun 2013
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Re: A successful 3 round burst
Tactical Shooting suggests a +10 for shooting at the shooting range. IIRC, this is +3 for known range, +1 each for no threat to self, no risk to others, and no personal or political stake in the results, and then +4 for sundry other bits, like optimal lighting. All-Out, bracing, and Aiming bonuses would be on top of this, making it rather easy to score all 3 hits at short range.
Of course, a weapon on burst mode only has RoF 3 if you’re only pulling the trigger once - just as semi-automatics have RoF 3, 3-round-burst weapons have RoF 9. Hitting with 6 of 9 shots in a second is markedly harder. If you can brace it, at a shooting range you’re looking at +1 (AOA) +1 (braced) +2 (RoF) +4 (Acc) +2 (3+ seconds of Aim) +10 (shooting range) -5 (15 yards), for a grand total of +15. To hit with 6 shots with a (I assume) Rcl 2 weapon requires MoS 10. Of course, with all the above, getting MoS 10 or better 74% of the time (effective skill 12) only requires a base skill of 7, assuming a man-sized (SM+0) target. Doing it in combat, on the other hand, even with an unaware (or otherwise unable to Dodge) foe, means losing that +10, and thus requires skill 17 to pull off.
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10-18-2020, 06:18 AM | #7 |
Join Date: Feb 2014
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Re: A successful 3 round burst
So would I be right in assuming if I fire a 3 round burst , the first shot would be the most accurate and best chance of hitting the target while number two bullet and number three bullet would be suffering from increasing recoil?
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10-18-2020, 07:45 AM | #8 |
Join Date: Oct 2005
Location: Göttingen, Germany
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Re: A successful 3 round burst
Yes, basically this is true for all "rapid fire" shots with RCL, as you only need to roll +/- 0 for the first shot, but better for the following shots, the first is "the most accurate" statistically ;) Generally, if you want to look for "the best shot" in a practical situation, I'd go with the biggest margin of success in comparison.
Last edited by OldSam; 10-18-2020 at 07:56 AM. |
10-18-2020, 12:49 PM | #9 | |
Join Date: Jul 2008
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Re: A successful 3 round burst
Quote:
The first shot of the burst does have the best chance of going right where you point it, seeing as it's mechanically identical to a single shot. But 'right where you point it' isn't necessarily where you actually want it! This is more obvious at higher rates of fire where GURPS gives a bonus to hit over a single shot. But that doesn't mean it doesn't apply here. It's entirely possible that the first shot isn't quite on target, but one of the later ones finds its way to where it's wanted. Don't take the cumulative recoil model that the GURPS RoF rules suggest to heart - fire doesn't get progressively less accurate over the length of a burst. (In general - it might in the case of a wild 'rock and roll' burst from a handheld weapon, but that's more user error than really a result of the recoil.)
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10-18-2020, 01:38 PM | #10 | |
Night Watchman
Join Date: Oct 2010
Location: Cambridge, UK
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Re: A successful 3 round burst
Quote:
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Tags |
guns, hit probability |
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