How do you deal with compressed loads in seating the long bullets to magazine length?
Question for the AR15 High Power Match Shooters
- Thread starter Pawnee Bill
- Start date
Fast14riot
Gold $$ Contributor
Switch powders. For magazine fed, I shoot the 75gr hpbt over 23.2 8208 at 2.265 coal. You can window the mags and put a channel in the mag well to get a longer seating depth, but typically the 2.4" long line loads are single fed for slow fire anyway.
^^this. I have used Varget with compressed loads and have become used to the ring dents on the ogive when "crunching" down a Sierra 77gr onto a 23.5+gr charge. I am currently trying CFE223 and RL15.
I have also spent quite a bit of time finding steel or aluminum magazines that let me get at least 2.275 OAL. When all else fails I have been known to trim meplats as a last resort.
I will be following this thread!
I have also spent quite a bit of time finding steel or aluminum magazines that let me get at least 2.275 OAL. When all else fails I have been known to trim meplats as a last resort.
I will be following this thread!
civil82
Gold $$ Contributor
ASC mags will allow you ~.040" additional COAL over the standard 2.260".
https://www.ammosc.com/products/mag...ess-steel-10-rd-blocked-20-rd-magazine-detail
Thanks for the advice! I just ordered two.
If you are talking about 80gr bullets, single load. For 69's, 77's etc. seat them to normal mag length and don't worry about it. No need to heavily compress loads, doing so can and most likely will produce inconsistency.
For years, shot Varget in .223 Service Rifle. During the last powder shortage, started shooting H4895. I haven't looked back. H4895 gets about same vel. and is way cleaner to shoot. Less powder crunching going on.
I shot IMR8208 when it 1st came out. Shot very accurate but was gritty in the action by the time I got to 300 yd stage, sometimes had failure to feed. Think this was a problem with the earliest version, not so much now but I haven't tried it again in Service Rifle. Shoots very accurate in my bolt gun. Lot less case volume than Varget, still less than H4895 too.
Oh, crunching powder, never had an issue with crunching 24.5 - 25 gr Varget with a 75/77gr load.
I shot IMR8208 when it 1st came out. Shot very accurate but was gritty in the action by the time I got to 300 yd stage, sometimes had failure to feed. Think this was a problem with the earliest version, not so much now but I haven't tried it again in Service Rifle. Shoots very accurate in my bolt gun. Lot less case volume than Varget, still less than H4895 too.
Oh, crunching powder, never had an issue with crunching 24.5 - 25 gr Varget with a 75/77gr load.
So, do you only shoot 80 gr in slow fire and 77gr & under for rapid fire?
Pour the powder can less.
This is not a game of speed, since it doesn't take much to kill paper, and the cartridge is a pipsqueak ANY way you load it.
If you want more cartridge, then choose that, but don't try to make the .223 a .22-250.
Things break. Your face can be one.
Hengehold
Silver $$ Contributor
Yes, that is exactly correct. 80gr for single load only and 77gr or less for mag length.
-T
Pour the powder can less.
This is not a game of speed, since it doesn't take much to kill paper, and the cartridge is a pipsqueak ANY way you load it.
If you want more cartridge, then choose that, but don't try to make the .223 a .22-250.
Things break. Your face can be one.
So, are you a High Power Rifle competitor with the AR15?
Yessir. At least for now.
This will make 10 years of Course, 4 years of Long Range, all years with either an AR15A2, or last year, AR15A4.
Pour the powder can less.
This is not a game of speed, since it doesn't take much to kill paper, and the cartridge is a pipsqueak ANY way you load it.
If you want more cartridge, then choose that, but don't try to make the .223 a .22-250.
Things break. Your face can be one.
Not sure I understand your comment as it relates to the original question. I know very well rifle cartridges and what they are capable of. Evidently, you have me confused with some tacticool internet commando. Perhaps you responded to the wrong thread as "Things break. Your face can be one." is a totally illogical response to the thread.
Ok Bill, I think you misjudged my humor, which is fine. Happens all the time.
Putting words in my mouth about what I must have judged about you is not that cool though.
You may know a TON more than I do about rifle cartridges. That's fine, too.
But you came here asking questions about .223 loads for an AR-15 Highpower rifle. I am somebody who knows just about how hard it can be pushed without quite breaking shit in the rifle, and I also know how hard it does NOT have to be pushed to help you win things.
I shoot 1,000 yard with a .223 Service Rifle, so it's kind of an absurd badge of honor.
Your initial postings made it kinda sound like you are a "go fast" loader, so I put myself in play as the "foot over the brakes".
Do what you want. I'll see you on the lines...just know that a 77 SMK and 24 of RE15 is about all it takes for every yardline that doesn't start with an 8 or better.
Putting words in my mouth about what I must have judged about you is not that cool though.
You may know a TON more than I do about rifle cartridges. That's fine, too.
But you came here asking questions about .223 loads for an AR-15 Highpower rifle. I am somebody who knows just about how hard it can be pushed without quite breaking shit in the rifle, and I also know how hard it does NOT have to be pushed to help you win things.
I shoot 1,000 yard with a .223 Service Rifle, so it's kind of an absurd badge of honor.
Your initial postings made it kinda sound like you are a "go fast" loader, so I put myself in play as the "foot over the brakes".
Do what you want. I'll see you on the lines...just know that a 77 SMK and 24 of RE15 is about all it takes for every yardline that doesn't start with an 8 or better.
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That must be a joke. P100 is President's Hundred, ie one of the top 100 shooters at Camp Perry (ie National Matches). HM is High Master, ie the highest classification you can receive in High Power. DR is Distinguished Rifleman.
natdscott is probably the most qualified person registered on this forum to speak of AR15 High Power loads. Yes he is legit, I recognize his name from the US Rifle Teams forum, which is pretty heavily High Power.
Yes. I see Hengehold already answered.
Well, I can't say's I necessarily deserve that, but I appreciate it anyway!
I've just tried hard to keep my performances moving forward from the angle that needs it the most at any moment, then move on to the next problem.
Fast14riot
Gold $$ Contributor
I've seen a trend of some guys shooting the 75/77 on all lines in the last couple years too, not that I agree, or that I am good enough to trust the 75s to land where I point them (with iron sights) but it's being tried by quite a few. In true service rifle fashion, I do not sort bullets, brass or weigh charges. I trust my rifle to show me when I screw up. Still shooting irons for now.
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