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Hi all. I did a search here by found very little info on 6 ARC load data. I’m just getting ready to dive into the loading process and any info would be much appreciated. I built an AR w/ a PROOF 18” stainless. So far it shoots well out to 1k with factory Hornady 108 ELDM loads. My plan is to...
So, I'm building a 6 ARC AR-15 upper for long range precision. I'm planning to take it out to 1200+ as well as maybe do some AR-15 Tac Comps with it. What reloading dies do you all recommend? From an interwebs search, it seems the options are basic Hornady or RCBS Matchmaster dies on 17 month...
It would be used for a Vortex 4.5-27 34mm tube on a 6CM upper. The rings look thin, but I'm trying to save as much weight as possible for a comp gun. Anyone running this mount? Thanks.
Today I finally got out to start development in my new 6CM Proof Research barrel for my AI-AT. I was very optimistic after I shot a few strings of factory Berger 109 and Hornady 108 ELDMs. Both of those shot half inch right out of the box. So I loaded up a string of 5x 3 shot ladders of...
I'm shopping around for a 6 creed barrel for my AT. I came across a PR stainless barrel for a decent price and wanted to check on opinions before I buy. I know Proof has a good rep, but are they all that for accuracy or over hyped. I'm currently shooting a Bartlein Gradous chambered barrel in...
I'm trying to find the best app for what the thread titles is asking, a one stop shopping location to store and organize reloading data, dope for each rifle and each cartridge, and so on. I'm doing a lot of this on an Excel spreadsheet on my laptop - but wanted something on the phone that I can...
I have a 6CM upper coming from JP in a about a month and was able to score several boxes of the Berger 109 LR Hybrids to use as a benchmark before reloading. Does anyone know what Powder JP uses for their factory 6CM loads? Same question for their 6.5CM 140 and 144 Factory loads? I'd be...
So, after much thrashing trying to get a good load for my .260 Rem gasser, I finally arrived on one. I worked up (actually worked down - long story) a good load in Lapua brass using the Berger 130 AR Hybrid, 41.0 gr of IMR 4451 @2790 fps. Had no pressure signs with the Lapua brass and under .5...
Hey all, need some help from the smart folks on something I'm seeing with brass life, loose primer pockets, etc. So quick back story and setting the scene. I have two 6.5 (.260Rem) rifles - one is an AI-AT with an aftermarket match barrel (Bartlein/Gradous reamed) and a JP barreled Gas-gun. I...
Ok, stupid question because I haven't really grasped the mandrel die concept yet.....I just picked up a Wilson Neck sizing mandrel die and a 6.5mm and a 6mm (for a future 6CM build that is in progress). From reading here as well as loading mentor saying the same - the order of the neck sizing...
Has anyone shot Berger 140 Hybrids or 139 Scenars in a .260 Gas gun? My go to bullet is the 130 AR Hybrids, but I'm about to run out and they are hard to find right now. However, I've got plenty of the 140s Hybrids and 139 Scenars. I was just afraid the bullets would be too long for mag...
Hi All, I'm struggling a bit to settle on a final load so I can just go shoot the rifle at distance and put all this load development behind me and concentrate on practicing skills for upcoming comps. After many rounds of chasing my tail with loads that were too hot and blowing out new...
I'm struggling with load development now with a .260 Rem Gas gun and I think it's mostly my own limited experience with reloading for gassers compared to many years w/ Bolt guns. I know intuitively that you're not going to get the same speeds in a semi as you do in a bolt gun, but I can't seem...
So what is the donut, how does it get there and what effect does it have on loading and load performance?? I suspect I have donuts in my Lapua case neck as I'm getting signs of pressure in a gas gun when there should be none. Due to some pressure signs of swipe and ejector marks in what I...
I have a 6mm CM upper on order and 6 months out and I'm trying to stock up on components as I find them in stock. Are there any issues with shooting the 105 or 109 Berger Hybrids in a gas gun? Especially the 109s as I assume they are longer. Are there any other bullets you guys are having...
Hi all, I ordered a shipment of Berger 6mm 105gr BT Target bullets. I made a mistake and thought I was getting Hybrids. It was a total fuck up on my part and I didn't catch my mistake until they had already shipped. I paid $39.99/box +tax and shipping for a total invoice of $230. I'll let...
I just went through a major thrash on building my large frame upper in a 6.5 caliber. It's a long story, but the receiver from a major brand wasn't available for a long time, so I ordered a different top tier upper to complete the build while waiting on the other upper to come back into stock...
I'm in the market for a new set of 6CM dies and came across the RCBS Match Master set. I've always used Redding Type S bushing dies with great success and thought of RCBS as the mid-grade level of dies. But had never come across the MatchMaster set before. It looks comparable to the Redding...
I've been tempted to sign up and take this course. The description sounds pretty basic and I've been doing LR (1K+) rifle for a while now. I'm always trying to learn, so I don't mind if some is basic - but don't want to waste my time if it's TOO basic. I'm a lifetime FS member, so any course...
I was reading JP's website on their 6mm CM barrels and they give a technique for "soft seating" bullets to headspace off the bullet rather than the shoulder for min or under min spec new cases. So my question is not necessarily related to just the 6mm Creedmore but to all similar situations...