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Rifles, Reloading, Optics, Equipment
Reloading
Trying to find accuracy in a 45-70 405 Gr Bullet with 4198 powder.
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<blockquote data-quote="Les in Wyoming" data-source="post: 2093847" data-attributes="member: 115820"><p>OK, latest update (head scratching). I loaded up several charges and shot them at 60 yards. I tried 34 grains IMR 4198 (going down) it shot horrible. Maybe a 10" group. Then I tried hotter loads going half-grain from 41.5 up to 43. The 3-shot groups were so incredibly sprayed, you would think it impossible. I could be more accurate with a sling shot. Some were 18" groups. (BTW, I gave the rifle a good thorough cleaning prior to this). These are cast 405 grain bullets I bought at the store. </p><p></p><p>So, I also had some other bullets I was able to buy recently. They are also 405 grain. Same shape. They are polymer coated measuring .457. I dumped 40 grains of 4198 under them. The results are in the attached pic. I am greatly relieved it isn't the rifle. I need to bring the sight over a bit, but at least they are together. Two in one hole and one next to it. So you guys were right that it is the bullets. Had these polymer bullets not shot well, I would have considered this rifle to be a wall hanger. But those bullets were the same shape and same weight. So how do you know you are getting good bullets when you find some? </p><p></p><p>We are going to try to shoot those other bullets in my son's gun to see if they shoot better in his. Assuming they don't (likely) is there anything I can do to make them shoot better? They do not have a place for a gas check on the back. Obviously, it is not the powder charge.</p></blockquote><p></p>
[QUOTE="Les in Wyoming, post: 2093847, member: 115820"] OK, latest update (head scratching). I loaded up several charges and shot them at 60 yards. I tried 34 grains IMR 4198 (going down) it shot horrible. Maybe a 10" group. Then I tried hotter loads going half-grain from 41.5 up to 43. The 3-shot groups were so incredibly sprayed, you would think it impossible. I could be more accurate with a sling shot. Some were 18" groups. (BTW, I gave the rifle a good thorough cleaning prior to this). These are cast 405 grain bullets I bought at the store. So, I also had some other bullets I was able to buy recently. They are also 405 grain. Same shape. They are polymer coated measuring .457. I dumped 40 grains of 4198 under them. The results are in the attached pic. I am greatly relieved it isn't the rifle. I need to bring the sight over a bit, but at least they are together. Two in one hole and one next to it. So you guys were right that it is the bullets. Had these polymer bullets not shot well, I would have considered this rifle to be a wall hanger. But those bullets were the same shape and same weight. So how do you know you are getting good bullets when you find some? We are going to try to shoot those other bullets in my son's gun to see if they shoot better in his. Assuming they don't (likely) is there anything I can do to make them shoot better? They do not have a place for a gas check on the back. Obviously, it is not the powder charge. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Trying to find accuracy in a 45-70 405 Gr Bullet with 4198 powder.
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