December 11, 2017 at 10:02 pm #53701DarkriversParticipant
Getting ready to make a purchase and I’m wondering if it’s worth while to buy some more expensive 77 grain for combat loads or just stick with quality 62 grain 855 (I already have a bit of this). I use wolf gold 55 grain for training.
If you're gonna fight, fight like you're the 3rd monkey on the ramp to Noah's Ark... And Brother, it's starting to rain! James from TexasDecember 12, 2017 at 4:07 am #53703Mike QParticipant
Buy a box of each and figure out which works best for your barrel. Then buy the right one in bulk.
There never seems to be enough time to do it right, but there is always enough time to do it twice.
CRM Sept. 2014, CTT 1505, CTT July 2015, RC-Rifleman 1502, CP Nov. 2015, FoF March 2016, CCW May 2016, FoF Oct. 2016, FoF Nov. 2016, CLC April 2017, FoF Nov. 2017, Alumni weekend Aug. 2018, CQB Dec. 2018, CQB May 2019December 12, 2017 at 4:55 am #53705TCParticipant
I have some 77gr and a 4-14x scope for DMR style shooting. I get ~1MOA out of my 16″ BCM ELW 1:7 barrel with it. Seems unnecessarily expensive to use it for dynamic stuff at closer ranges though. But if I had to reach out 500-800 yards with 5.56 then I would prefer 77gr for sure.
SE Florida ☆ CQBC 2017 ☆ CTT/DA 2017 ☆ CLC 2018December 12, 2017 at 5:31 am #53706KeeperParticipant
77 grain is a good round for DMR shooting and TC is right it will reach out to 500-800yrds
Alumni living in N.E Fla. for now. Going to retire in Iowa on the farm some day soon.December 12, 2017 at 8:00 am #53707BrigandActualParticipant
It depends on your needs, honestly. I you need the range/accuracy? Are you willing to sacrifice barrier performance to get there?
77gr SMK loads have ok terminal performance, but not fantastic. They have poor barrier penetration. Their best use is maximizing range in the open.
If you can find it, XM556FBIT3 is a good all round defensive load.
"Man is still the first weapon of war" - Field Marshal Montgomery
Matt B - VADecember 12, 2017 at 9:59 am #53710wheelseeParticipant
I’m experimenting with 75 gr BTHP. I use 20-round mags to distinguish the different loads.
Which is heavier - a soldier's pack or a slave's chains? Napoleon
Strength, Honor. Maximus (Gladiator)
If you tolerate evil, you yourself are evil.
Col Hugo Martinez, Commander Search Bloc
William, in The RepublicDecember 12, 2017 at 11:00 am #53713DarkriversParticipant
Thanks for all the info. I’ll get some more 62gr. Sounds like that will be everything I need.
If you're gonna fight, fight like you're the 3rd monkey on the ramp to Noah's Ark... And Brother, it's starting to rain! James from TexasMarch 2, 2018 at 4:09 pm #56297libertycallsParticipant
The 77g doesn’t give much gain, while it wears out a barrel quicker. The 62g performs well out to 450 yards, better than 55g XM193’s. I’ve experienced this first hand. There’s also more wear on the barrel with a heavier projectile.
The 62’s are a good compromise in price to performance, and barrel life.
I’m not shooting green tips, I’m shooting some bulk FMJ projectiles that I load my self. I didn’t have a 20″ barreled rifle to compare them to, but I’ve got one now. Once I load up some more rounds I’ll see if there’s any difference in the longer barrel.March 2, 2018 at 8:06 pm #56304rommelParticipant
Here is a worth while article found on The Captains Journal
"We have now sunk to a depth at which restatement of the obvious is the first duty of intelligent men" George Orwell
Beneath this Grumpy exterior beats the Heart of a Dashing Hero
Lancaster PA CTT CP NV CQBMarch 3, 2018 at 8:55 am #56312hellokittyParticipant
Every 5.56/.223 Ammo has its positives and negatives. There is no perfect round. You just use the best you can afford. Don’t forget ALL of them will make a hole in a person. So don’t over think it.
CTT 1502, NODF 1502, CP 1503, RC 002- Rifleman, FoF x 2, Run and Gun, RS/CTT, CLC, CQBC, Heat 1
Craig S.March 11, 2018 at 2:37 pm #56734QuietOldManParticipant
I shoot Federal XM193 55grain. Works well with my BCM Recce 16.March 12, 2018 at 4:22 am #56753KeeperParticipant
The 77g doesn’t give much gain, while it wears out a barrel quicker.
pleased explain and show how it wears out a barrel. is it true for .30 also
Alumni living in N.E Fla. for now. Going to retire in Iowa on the farm some day soon.March 13, 2018 at 12:09 am #56779HitsCountParticipant
I use MK262 for SBRs and SPR/DMRs (long range). The lower fragmentation velocity improves performance at longer ranges and out of shorter barrels. The improved accuracy is nice with SPRs/DMRs.
Everything else eats 55 grain M193 clones except for the competition service rifle which gets match grade 223.
Each of the MK262 rifles has a DOPE card with the adjustment needed to bring the zero back for M193. The M193 rifles have a DOPE card with the adjustment needed to go to MK262.
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