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Rifles, Reloading, Optics, Equipment
Reloading
Ready to give up on this rifle, any suggestions?
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<blockquote data-quote="emp1953" data-source="post: 2333601" data-attributes="member: 71817"><p>Further along this thread I see that it is a used rifle What year m70 is it? Do you know the original owner can you ask if he had similar problems with it? Is it an original factory barrel or did the original owner have the barrel replaced? Try to confirm the twist rate. Are all the bullet holes in the target perfectly round? You should be able to duplicate the factory ammo, or at least get close. </p><p>I agree, do your analysis using the Hornady ammo using their reloading data for powders and components. Stick with the 150's during your analysis.</p><p>Do you exclusively shoot from your internal magazine or do you single feed your cartridges?</p><p>I had an instance where recoil was moving bullets rearward which was changing velocity and POI.</p><p>Also had another where my press starting putting out rounds that weren't concentric. I haven't used my concentricity gauge since then but I'm glad I had it then. These were longer .270 Wby cases. I sent the press back to RCBS, they rebuilt it and all is good now.</p><p>I would also clean the bore and chamber well with something like Butch's Bore Shine. Get it down to bare metal, then pick a bullet and stick with it for a while. Differing metallurgy will cause copper build up at differing rates.</p><p>I have bought a number of rifles (cheaply) at the range where guys just gave up on it. All but one I was able to get to shoot well, that one was an M1 Garand that probably had 10,000 rounds through it. I bought a m70 .270win from a guy that said it just stopped shooting well and he sold it to me. I checked the serial number with Winchester and found it was made in 1953. A borescope showed a pronounced carbon ring and copper. It took me 2 weeks to clean it. There was still a stain and mark where the carbon ring was but the rifle again shot lights out.</p><p>If you have access to a decent gunsmith with a bore scope have him take a look. There may be a physical defect not obvious to the casual shooter.</p><p></p><p>Read this article about runout. <a href="https://www.rifleshootermag.com/editorial/the-rundown-on-runout/360599" target="_blank">https://www.rifleshootermag.com/editorial/the-rundown-on-runout/360599</a></p></blockquote><p></p>
[QUOTE="emp1953, post: 2333601, member: 71817"] Further along this thread I see that it is a used rifle What year m70 is it? Do you know the original owner can you ask if he had similar problems with it? Is it an original factory barrel or did the original owner have the barrel replaced? Try to confirm the twist rate. Are all the bullet holes in the target perfectly round? You should be able to duplicate the factory ammo, or at least get close. I agree, do your analysis using the Hornady ammo using their reloading data for powders and components. Stick with the 150's during your analysis. Do you exclusively shoot from your internal magazine or do you single feed your cartridges? I had an instance where recoil was moving bullets rearward which was changing velocity and POI. Also had another where my press starting putting out rounds that weren't concentric. I haven't used my concentricity gauge since then but I'm glad I had it then. These were longer .270 Wby cases. I sent the press back to RCBS, they rebuilt it and all is good now. I would also clean the bore and chamber well with something like Butch's Bore Shine. Get it down to bare metal, then pick a bullet and stick with it for a while. Differing metallurgy will cause copper build up at differing rates. I have bought a number of rifles (cheaply) at the range where guys just gave up on it. All but one I was able to get to shoot well, that one was an M1 Garand that probably had 10,000 rounds through it. I bought a m70 .270win from a guy that said it just stopped shooting well and he sold it to me. I checked the serial number with Winchester and found it was made in 1953. A borescope showed a pronounced carbon ring and copper. It took me 2 weeks to clean it. There was still a stain and mark where the carbon ring was but the rifle again shot lights out. If you have access to a decent gunsmith with a bore scope have him take a look. There may be a physical defect not obvious to the casual shooter. Read this article about runout. [URL]https://www.rifleshootermag.com/editorial/the-rundown-on-runout/360599[/URL] [/QUOTE]
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Reloading
Ready to give up on this rifle, any suggestions?
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