I am running these projectiles for long range shooting and was curious if anyone has tested them for terminal performance, haven’t been able to find any info…
Load is the Atlanta Arms 5.56, Chroning 2725 FPS out of a 16" barrel and 2775 from an 18"
They are very accurate and feed 100% reliable
Did you check DocGKR’s 5.56mm Duty load thread? He talks about them in there.
I did, I must have missed it, will re read
thanks
IIRC, the Lapua stuff uses Sierra 77gr OTM bullets. From his post, I quote:
n those situations where intermediate barrier penetration is not a critical requirement, for example LE urban entries or long range shots in open conditions, then OTM, JHP, and standard JSP loads can offer acceptable performance. For 1/7 twist barrels, the Hornady 75 gr OTM, Nosler 77 gr OTM, and Sierra 77 gr SMK OTM are all good choices. The experimental BH loaded 100 gr OTM exhibits impressive fragmentation, even at relatively low velocities, however while capable of shooting out to 600, it is optimized for 200 and under. If stuck with 1/9 twist barrels, the heavy 70+ gr loads are not universally accurate in all rifles and the 69 gr SMK OTM, the 68 gr Hornady OTM, the Winchester 64 gr JSP (RA223R2), the Federal 64 gr TRU (T223L) JSP, Hornady 60 gr JSP, are likely to run accurately in the majority of 1/9 twist rifles. Again it is critical to keep in mind that the above loads fail to offer adequate penetration through intermediate barriers.
For longer range engagements using precision weapons like the Mk12 SPR or DMR rifles with faster 1/8 or 1/7 twist barrels, one of the combat proven 5.56 mm (ie. 5.56 mm NATO pressure loads, not .223 SAAMI pressure loads which run about 200 f/s slower) heavy match OTM loadings are a good choice: the Hornady 75 gr TAP (#8126N) using the OTM bullet w/cannelure, Nosler 77 gr OTM, or the Sierra 77 gr Match King OTM (Mk262 Mod1).
I believe terminal effectiveness in this case may depend on your planned range of engagement and situation.
no, this is the actual Lapua bullet
Ah, I stand corrected. Don’t mind me then. 
no worries
I am going hog hunting this weekend, maybe I should try one instead of my normal 95g Barnes TTSX out of my 6.8
I have NO doubt a well placed behind the ear shot would result in a DRT pig…
I was more wondering about for HD, been toying with the idea of using an AR instead of a shotgun mainly because I think my wife would be able to handle it and shoot it easier
Do you relaly think there are going to be measurable deltas in performance between 75-77 grain HPBT target bullets impacting at similar velocities? They all have common characteristics: thinnish, concentric jackets, BT design, alloy cores are probably close to one another.
I’m not saying a Sierra or Nosler or Hornady wouldn’t test better, but they’ll all test close enough that there won’t be a hill of beans delta between them.
There is a measurable difference between Nosler and Sierra 77s so this is a reasonable question.
What are the differences? Total penetration, neck length, degree of fragmentation, and breakdown of recovered weight for each inch of penetration?