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Hello from Spain! Questions about a Bergara B-14 HMR 6.5 creedmoor
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<blockquote data-quote="Padmi" data-source="post: 1970856" data-attributes="member: 109877"><p>Hi again guys,</p><p></p><p>I got a lot of news to share with you. </p><p></p><p><strong><u>I was shooting using Hornady ELD-M 147.</u></strong></p><p></p><p>>RS60 powder</p><p>>Lapua shell (neck size)</p><p>>CCI BR4</p><p>>SAAMI OAL. </p><p></p><p>I like using the magazine, and for me it is easier as novice, reloading following SAAMI parameters, since I am focused in the muzzle velocity and the powder. And simplifying the reloading helps me to go step by step. </p><p></p><p>With 41.5 grains I am getting 2756 fps. That it is the perfect velocity to my barrel, I am getting a regular 0.3 TMOA accuracy shooting at 100 meters (not yards). I was shooting 5 shoots per group and getting the average of <strong><span style="color: rgb(184, 49, 47)">0.3 TMOA</span></strong>. Sometimes a quite less and sometimes a quite more.</p><p></p><p>The problem is that there is no stock in the stores of those bullets until November, I ordered 1000 (ten boxes).</p><p></p><p>After that I decided to try two new ammunition: </p><p></p><p><u><strong>The first one is the Lapua scenar</strong></u></p><p></p><p>1. Lapua scenar 139grains</p><p>2. CCI br-4 primer</p><p>3. Lapua shell (neck size)</p><p>4. SAMMI OAL (2.81 inches)</p><p>5. RS 60 powder: 2756 fps again, using 41.4gr</p><p></p><p>At the end, using Lapua scenar 139 grains I am getting a very good accuracy shooting up to 600yd. For expample 96 points out of 100 at 300m or 89 out of 100 at 600yd (Harris bipod and chest support). But the accuracy is worse, I am getting the average of <span style="color: rgb(184, 49, 47)"><strong>0.5 TMOA</strong></span>. Also the BC is low, so as far as I know, this is not the best option to shoot longer. </p><p></p><p>I got other two boxes so I am going to increase the OAL to 2.835. And use it to shoot up to 900yd, and finishing my stock. </p><p></p><p><strong><u>The last one is the Sierra matchking HPBT 142 gr</u></strong></p><p></p><p>1. Sierra matchking HPBT 142gr</p><p>2. Muron primer (large rifle)</p><p>3. Norma shell (full lenght)</p><p>4. SAMMI OAL (2.81 inches)</p><p>5. RS 60 powder 41.5 gr (I did not check the velocity)</p><p></p><p>Using this ammo I am getting <strong><span style="color: rgb(184, 49, 47)">0.35 TMOA</span></strong></p><p></p><p>Here in Spain, people recommended me 140 grains version, but I decided to purchase the 142 one since according the technical data, it is designed to 1:8 twist like in my rifle. Now, while I wait for the Hornady ELDM, I gonna develop this second load. I think that following saami measures, I can increase or reduce the OAL to increase the accuracy and getting a better group. </p><p></p><p>What do you think? could you please give me an advice? Do you have experience with sierra matchking hpbt 142gr? I have never checked the OAL. I'm going to take the opportunity that I have, since I have time, to try to get a good load with sierra bullets. </p><p></p><p>Thanks a lot in advance</p></blockquote><p></p>
[QUOTE="Padmi, post: 1970856, member: 109877"] Hi again guys, I got a lot of news to share with you. [B][U]I was shooting using Hornady ELD-M 147.[/U][/B] >RS60 powder >Lapua shell (neck size) >CCI BR4 >SAAMI OAL. I like using the magazine, and for me it is easier as novice, reloading following SAAMI parameters, since I am focused in the muzzle velocity and the powder. And simplifying the reloading helps me to go step by step. With 41.5 grains I am getting 2756 fps. That it is the perfect velocity to my barrel, I am getting a regular 0.3 TMOA accuracy shooting at 100 meters (not yards). I was shooting 5 shoots per group and getting the average of [B][COLOR=rgb(184, 49, 47)]0.3 TMOA[/COLOR][/B]. Sometimes a quite less and sometimes a quite more. The problem is that there is no stock in the stores of those bullets until November, I ordered 1000 (ten boxes). After that I decided to try two new ammunition: [U][B]The first one is the Lapua scenar[/B][/U] 1. Lapua scenar 139grains 2. CCI br-4 primer 3. Lapua shell (neck size) 4. SAMMI OAL (2.81 inches) 5. RS 60 powder: 2756 fps again, using 41.4gr At the end, using Lapua scenar 139 grains I am getting a very good accuracy shooting up to 600yd. For expample 96 points out of 100 at 300m or 89 out of 100 at 600yd (Harris bipod and chest support). But the accuracy is worse, I am getting the average of[B] [/B][COLOR=rgb(184, 49, 47)][B]0.5 TMOA[/B][/COLOR]. Also the BC is low, so as far as I know, this is not the best option to shoot longer. I got other two boxes so I am going to increase the OAL to 2.835. And use it to shoot up to 900yd, and finishing my stock. [B][U]The last one is the Sierra matchking HPBT 142 gr[/U][/B] 1. Sierra matchking HPBT 142gr 2. Muron primer (large rifle) 3. Norma shell (full lenght) 4. SAMMI OAL (2.81 inches) 5. RS 60 powder 41.5 gr (I did not check the velocity) Using this ammo I am getting [B][COLOR=rgb(184, 49, 47)]0.35 TMOA[/COLOR][/B] Here in Spain, people recommended me 140 grains version, but I decided to purchase the 142 one since according the technical data, it is designed to 1:8 twist like in my rifle. Now, while I wait for the Hornady ELDM, I gonna develop this second load. I think that following saami measures, I can increase or reduce the OAL to increase the accuracy and getting a better group. What do you think? could you please give me an advice? Do you have experience with sierra matchking hpbt 142gr? I have never checked the OAL. I'm going to take the opportunity that I have, since I have time, to try to get a good load with sierra bullets. Thanks a lot in advance [/QUOTE]
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Hello from Spain! Questions about a Bergara B-14 HMR 6.5 creedmoor
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