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Posted: 12/27/2003 4:33:33 PM EDT
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This may be a stupid question but, I normaly shoot 69 grain federal gold and 55 grain winchester out of my SPR. I normaly only shoot the 55 Grain at 25M. I only use the 69 grain at 100M or more. My question is will the 55 grain winchester damage the Barrel? I think it should be fine as it is not surplus ammo. The 55 grain I use is the 40rd winchester value pack from walmart. So far I have put 60 rds of the 55 grain and 50rds of 69 grain through the barrel(of course cleaning/breaking in etc). The accuaracy is still sub MOA I just dont want to damage my barrel shooting the cheap ammo. For 25m (indoor range when 100m is closed)I cant justify shooting a $14(per 20rds) box of 69 grain when the 55 grain is $4.00(per 20rds). Thanks FREE |
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Free, I am wondering the same as well. Your barrel is .223 REM 1-7 or 1-7.5 right? I do remember reading a debate whether the lighter/faster bullets were harder on the barrel, but I don't remember a real definitive answer. I use the same walmart 55gr Winchester ammo. I remember someone telling me they aren't as hot as other mil surplus stuff (M193?) Are you getting sub MOA at 100M w/ the walmart stuff, or just at 25M. I would guess that there would be only a negligible difference, if any, based mostly on what I've read here and there. |
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Yea its the Douglas 18" SPR Barrel from MSTN. 55 grain gives me sub moa at 25M(one ragged hole) At 100M it is about 1-1.5 MOA if I do my part. I think it will be fine just wanted some advice. FREE 55 grain winchester 100M [img]http://pic3.picturetrail.com/VOL16/709417/1822696/38758453.jpg[/img] |
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The 55 grainers @ 3250 FPS will chew up your barrel lightly faster than your 69 grain loads @ 2800 FPS. With your good barrel, I would only feed it the 69's and maybe some 77 OTM's and forget about the 25m shooting. Good for a battle zero, but your kickin' SPR will hopefully stay at home for CQB situations. If you are worried about cost, start to handload. When it cost $17.00 to load up 100 rounds of 69 grain bullets it looks awfully attractive. |
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