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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="Alibiiv" data-source="post: 2094166" data-attributes="member: 69192"><p>I am quite certain that it is not the powder and it is not the primers that is causing the inaccuracy. There are a lot of variables here that one has to take into consideration when loading cast bullets and I did not see any of them addressed in your original post. First and foremost what are you using for lead, what is the Brinell hardness of the rounds that you are shooting? The best hardness ought to be up to 22.0, and I suggest a gas checked bullet to get a good seal. Next what is the diameter of the bullets that you are shooting and how did you size those bullets? What is the mold number for those same bullets, and what are you using for a lube? Have you tried purchasing some factory cast bullets to make a comparison. Rim Rock bullets makes a hard-cast bullet with a gas check that I have been considering to try in my Marlin 1895, 45-70; I've used their bullets in other guns. Also have you tried some factory, jacketed bullets in your rifle to see what you are getting for groups with the factory stuff. I reload for two Marlin 1895s, both will shoot one-inch (usually two shots in one hole), three shot groups at 50 yards consistently with just about any jacketed bullet that I put through them, and.....4198 (48 grains) is the go-to powder. As for chasing lands with the 45-70, I would say that yes you can try chasing lands, but I don't think it is possible to do with the round. This rifle does have a significant recoil and your bullets "will" back out without a good, solid crimp. You cannot ignore the cannular groove, if you do you will have a problem. The overall length for the 45-70 "is" determined by the cannular groove, so the overall length will be determined by the bullet and not the SAAMI specs in your reloading manual. Case in point is if you are loading the Leverrevolution bullets, the casings have to be trimmed back to suit the bullet; so your casings are shorter if reloading Leverrevolution bullets. I strongly suggest that you try the going the jacketed bullet route first just to see what the rifle will do. Lastly or maybe ought to have been firstly, is check the sights on your rifle to make sure that everything is tight and not moving around, especially the front sight, sometimes the dovetail can be just a little loose and that will throw everything off tremendously. If all else fails, "maybe" an eye test and some glasses??<img class="smilie smilie--emoji" loading="lazy" alt="👍" title="Thumbs up :thumbsup:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" data-shortname=":thumbsup:" /><img class="smilie smilie--emoji" loading="lazy" alt="👍" title="Thumbs up :thumbsup:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" data-shortname=":thumbsup:" /><img class="smilie smilie--emoji" loading="lazy" alt="👍" title="Thumbs up :thumbsup:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" data-shortname=":thumbsup:" /><img class="smilie smilie--emoji" loading="lazy" alt="🤣" title="Rolling on the floor laughing :rofl:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f923.png" data-shortname=":rofl:" /><img class="smilie smilie--emoji" loading="lazy" alt="🤣" title="Rolling on the floor laughing :rofl:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f923.png" data-shortname=":rofl:" />! These guns in this caliber shoot, I am sure you can get the accuracy that you are looking for, gotta get the right combination.</p></blockquote><p></p>
[QUOTE="Alibiiv, post: 2094166, member: 69192"] I am quite certain that it is not the powder and it is not the primers that is causing the inaccuracy. There are a lot of variables here that one has to take into consideration when loading cast bullets and I did not see any of them addressed in your original post. First and foremost what are you using for lead, what is the Brinell hardness of the rounds that you are shooting? The best hardness ought to be up to 22.0, and I suggest a gas checked bullet to get a good seal. Next what is the diameter of the bullets that you are shooting and how did you size those bullets? What is the mold number for those same bullets, and what are you using for a lube? Have you tried purchasing some factory cast bullets to make a comparison. Rim Rock bullets makes a hard-cast bullet with a gas check that I have been considering to try in my Marlin 1895, 45-70; I've used their bullets in other guns. Also have you tried some factory, jacketed bullets in your rifle to see what you are getting for groups with the factory stuff. I reload for two Marlin 1895s, both will shoot one-inch (usually two shots in one hole), three shot groups at 50 yards consistently with just about any jacketed bullet that I put through them, and.....4198 (48 grains) is the go-to powder. As for chasing lands with the 45-70, I would say that yes you can try chasing lands, but I don't think it is possible to do with the round. This rifle does have a significant recoil and your bullets "will" back out without a good, solid crimp. You cannot ignore the cannular groove, if you do you will have a problem. The overall length for the 45-70 "is" determined by the cannular groove, so the overall length will be determined by the bullet and not the SAAMI specs in your reloading manual. Case in point is if you are loading the Leverrevolution bullets, the casings have to be trimmed back to suit the bullet; so your casings are shorter if reloading Leverrevolution bullets. I strongly suggest that you try the going the jacketed bullet route first just to see what the rifle will do. Lastly or maybe ought to have been firstly, is check the sights on your rifle to make sure that everything is tight and not moving around, especially the front sight, sometimes the dovetail can be just a little loose and that will throw everything off tremendously. If all else fails, "maybe" an eye test and some glasses??👍👍👍🤣🤣! These guns in this caliber shoot, I am sure you can get the accuracy that you are looking for, gotta get the right combination. [/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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