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Has any testing been done on the lighter wieght higher velocity MATCH bullets?
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Not sure about these particular bullets, but I seem to recall test of similar bullets
Because they are not designed to explode like varmint HPs, could they have deeper penetration due to yawning and then fragment like the heavier OTMs?
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From what I remember, the general consensus was that most 22 caliber light match bullets tend to behave much like their polymer-tipped bretheren. I have experienced massive fragmentation from Match loads.
The reason I ask these question is the possiblity of rounds like these to be ideal for certain roles (mainy personal home defense and law enforcement).
1. They are MUCH less expensive than the heavier counter-parts. I paid .12 cents per bullet for these and I usually pay .17 cents per bullet for 68-69gr and 75-77 are more.
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They do tend to be cheaper. I haven't noticed a difference in price like you are talking about though. Speer bullets are cheaper than Sierra, for example, but most Sierra bullets in the same cal. are in the same price ballpark
2. Can load these to MUCH higher velocities. I think 3400-3600 fps out of a 20 in barrel. This could be a much more effective round in shorter barreled entry weapons(10.5-11.5 " barrels).
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You will NOT be able to load a 52 grain HPBT to 3400 FPS without getting into excessive pressure. Figure 3300 FPS max with a 20" barrel. 3600 is out of the question.
3. These bullets could be well suited for indoor CQB with less interior/exterior wall penetration than the heavier bullets.
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Testing would be the only way to tell. You don't want to reduce wall penetration at the expense of bad guy penetration.
4. Can be used in barrels with slower twist rates.
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Yup!
5. Should defeat body armour.
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Sure. A Speer 52 grain HPBT easily perforates 1/4 inch steel
6. Bullet wieght is similar to 55gr M193 so potentially could have similar performance with fragmentation at lower velocities. However they do not have a cannelure (they might not fragment at all because they are so short compared to the longer OTMs).
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They may fragment too readily. This may be ok for SBR's and long ranges, but you don't want to sacrifice penetration.
Any thoughts on lighter wieght OTM bullets?
I know the light ballistic tip, and varmint bullets have been discredited ad nauseum, but that is not what I'm asking about.
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They are great for short range accuracy. They kill small animals pretty well too. They absolutely destroyed a small stack of wet phone books that I shot, and the wound was very large and shallow. I doubt that you will see a favorable comparison to M193 type or the heavier OTM types because of this.