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i noticed while working up loads for my 8mm-06 mauser 98 and my 300 win mag howa that the group sizes tightened up and the velocity devation got smaller as i shot more. i thought accuracy should have been best from a clean barrel but seems to improve to its best after 12 to 15 shots. i haven't shot enough with either rifle to see if it starts to drop off at some point. when i say the barrels are clean i mean clean, no copper, no powder fouling, and no oil. has anyone else observed this? does it vary from gun to gun? get some wolfie !! | ||
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It varies very much from gun to gun.I have owned rifles that did shoot better after a few rounds were fired but my present rifles shoot equally well and to the same point of impact out of a clean barrel.I have also owned rifles where the accuracy dropped off in as few as 12 to 15 rounds. | |||
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I have a sako in a 30-378 that seems to like the xlc bullet really well. Haven't tried the tsx yet. BUT, it shoots best after about 12-15 rounds also. Now lets see...that is one fun caliber to have to put that many fouling rounds through before a hunt..especially if it's warmer that 60 degrees out. On the same topic (sort of) I;ve been taking a boresnake to the range with me. About every 15-20 roundsI do a pass with the snake. I swear it keeps the barrel clean enough to test ammo for hours. It also seems to make cleaning at home much easier than it used to be. | |||
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I have barrels that are both ways,..so it all depends on the individual barrel itself. This includes match grade stainless barrels as well. Difficulty is inevitable Misery is optional | |||
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And are you all going to be able to outshoot the difference in the field, puffing,excited,rushed, unknown range, unknown wind effect. And the last time I got a good group, my mate says, "yep, seems like one can hook shots into the bull as well as out." JL. | |||
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Hey Lobo, I agree with all the above including "yep, seems like one can hook shots into the bull as well as out", which I refer to as Random Group Dispersion (but isn't as funny with a buddy ). I prefer to hunt with a spotlessly clean barrel which has been lightly lubed and then wiped dry with a couple of Paper Patches to remove any excess. This still leaves a small film of the lube present to protect the Bore from the elements. And over all the years I've been hunting, I really don't remember taking a 3rd shot at Game. Even two shots can be counted on one hand for five decades of hunting. I just don't hunt with a "fouled" barrel as some folks do, so I clean the barrel and relube quite often at the Range. I will go normally 6-9 shots and then clean the barrel while Developing Loads. But, once the Load is determined, I'll typically go to 2-shot groups and really prefer cumulative 1-shot groups. That requires cleaning and lubing after every shot, but it is the condition the barrel will be in while I'm hunting, so that is the condition I want it in when practicing. Best of luck to you. | |||
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For me it has varied depending on the rifle more than anything. My 7mm RM in a Win 70 really shoots the Barnes XLC's AFTER it's "dirty". And to be honest, I have yet to find a better shooting load with any other bullets, whether the bbl is clean or dirty! I don't notice that much of a difference in other rifles. I'm not that picky but it was obvious in the 7mag. I do have a bbl that shoots when clean but starts to wander badly as it heats up and gets dirty. It does seem they each have their own personalities. Nate | |||
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