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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
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<blockquote data-quote="Jud96" data-source="post: 1268314" data-attributes="member: 69478"><p>I haven't updated this thread in awhile. I have been busy flintlock muzzleloader hunting in Western, Pennsylvania for the last week. I did get a TriggerTech trigger with the flat shoe. I wasn't sure how I would like the flat shoe for use all the time, but I had previously shot a buddy's NRA Match Rifle with a flat trigger shoe and it was really nice. The trigger is user adjustable from 1.5-4lbs and the allen screw can be accessed with the trigger in the rifle with the bottom metal installed, this is really nice. The adjustments are roughly 1 oz per click and when you back the screw in or out it makes an audible clicking noise, much like a scope, for every 1 oz you move it. I have it set at about 1.5-1.75 lbs, I have not measured it but I am very close to the bottom of the adjustment range. The trigger uses a roller between the sear and trigger itself creating an extremely smooth and consistent pull. I have shot rifles with tuned Remingtons, Timneys, AccuTriggers, and Jewels and being honest with an unbiased opinion, the TriggerTech breaks crisper and has the least amount of creep I have ever experienced. They offer another trigger that is adjustable from 1-3.5lbs but it was like $50 more and 1.5lb is plenty light enough for me. My impressions so far is that this is an amazing trigger for $130 and I prefer it over a Timney or anything else. Jewels are definitely nice, but cost more and are not as durable of a design and can fail in dust or harsh environments. I encourage everyone to check out TriggerTech!</p><p></p><p>On a different note, I got to test one round the other day loaded with a 208gr ELD and 67gr of IMR 7828. Our local range has closed so it is difficult for me to test loads and shoot during hunting season because rifle season is not in and I don't want to take any chances by shooting a high power on private or public land. Anyways, I pretty much made up my own loads for the .308 Norma because data with modern slow powders and heavy bullets is close to non-existent! So I reduced .300 Win Mag starting data by a few grains and went from there. The Bertram brass is A LOT heavier than standard Norma brass and that is apparent from the 67gr load I fired that reached pressure. I am glad I did not fire anything with a heavier charge because 67gr flattened the primer but left the edges round, no cratering, and no ejector mark or hard bolt lift. I did not have a chance to chrono this load but I am hoping to reach 2900 without excessive pressure. I will further test IMR 7828 and then RL23 and IMR 7977 when I get the time and place to do so. </p><p></p><p>I am seating .020 off the lands and my COAL is 3.475" which is shorter than I originally thought. I had previously tried a new method of finding my max OAL with a cleaning rod but it is not precise enough. So I went back to the sharpie method that I do not like all that much but seems to work. I have thought about renting a throating reamer and cutting the throat so I touch the lands at about 3.6" but since my powder charges are lower than expected, none of my loads are compressed so there's no need to seat longer.</p></blockquote><p></p>
[QUOTE="Jud96, post: 1268314, member: 69478"] I haven't updated this thread in awhile. I have been busy flintlock muzzleloader hunting in Western, Pennsylvania for the last week. I did get a TriggerTech trigger with the flat shoe. I wasn't sure how I would like the flat shoe for use all the time, but I had previously shot a buddy's NRA Match Rifle with a flat trigger shoe and it was really nice. The trigger is user adjustable from 1.5-4lbs and the allen screw can be accessed with the trigger in the rifle with the bottom metal installed, this is really nice. The adjustments are roughly 1 oz per click and when you back the screw in or out it makes an audible clicking noise, much like a scope, for every 1 oz you move it. I have it set at about 1.5-1.75 lbs, I have not measured it but I am very close to the bottom of the adjustment range. The trigger uses a roller between the sear and trigger itself creating an extremely smooth and consistent pull. I have shot rifles with tuned Remingtons, Timneys, AccuTriggers, and Jewels and being honest with an unbiased opinion, the TriggerTech breaks crisper and has the least amount of creep I have ever experienced. They offer another trigger that is adjustable from 1-3.5lbs but it was like $50 more and 1.5lb is plenty light enough for me. My impressions so far is that this is an amazing trigger for $130 and I prefer it over a Timney or anything else. Jewels are definitely nice, but cost more and are not as durable of a design and can fail in dust or harsh environments. I encourage everyone to check out TriggerTech! On a different note, I got to test one round the other day loaded with a 208gr ELD and 67gr of IMR 7828. Our local range has closed so it is difficult for me to test loads and shoot during hunting season because rifle season is not in and I don't want to take any chances by shooting a high power on private or public land. Anyways, I pretty much made up my own loads for the .308 Norma because data with modern slow powders and heavy bullets is close to non-existent! So I reduced .300 Win Mag starting data by a few grains and went from there. The Bertram brass is A LOT heavier than standard Norma brass and that is apparent from the 67gr load I fired that reached pressure. I am glad I did not fire anything with a heavier charge because 67gr flattened the primer but left the edges round, no cratering, and no ejector mark or hard bolt lift. I did not have a chance to chrono this load but I am hoping to reach 2900 without excessive pressure. I will further test IMR 7828 and then RL23 and IMR 7977 when I get the time and place to do so. I am seating .020 off the lands and my COAL is 3.475" which is shorter than I originally thought. I had previously tried a new method of finding my max OAL with a cleaning rod but it is not precise enough. So I went back to the sharpie method that I do not like all that much but seems to work. I have thought about renting a throating reamer and cutting the throat so I touch the lands at about 3.6" but since my powder charges are lower than expected, none of my loads are compressed so there's no need to seat longer. [/QUOTE]
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