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Old January 17, 2012, 06:43 PM   #10
Slamfire
Senior Member
 
Join Date: May 27, 2007
Posts: 5,261
I cleared the barrel channel on my 270 Win FN Deluxe, the barrel had been bedded all the way to the stock tip. I was not certain the rear lug was ever touching, but now it is.

After rebedding I took the thing to the range and accuracy is improved but it is a 2 MOA rifle now. I may change scopes and see if that improves anything, and I may add more clearance in the barrel channel.

I was disappointed with the velocities I got with my 130 Noslers’ and 55.0 grs H4350. I wanted 3000 fps and I did not get it. This lot of H4350 takes one more grain in the 30-06 to have the same velocities as IMR/AA4350. So maybe I could add a bit more. The only ammunition I got 3000 fps was Federal factory. My rifle shot best with the 150’s, and that velocity is disappointing. I get better velocities with 150’s in a 308 Win.

I am going to try 130 gr Federal Fusion bullets, AA4350 and AA2700.

Code:

FN Deluxe  24" Barrel 				
							
100 gr PSP Remington Factory					
							
29 Dec 2011 T =  50 °F					
							
Ave Vel =	3024			 			
Std Dev =	11			 			
ES =	27			 			
High =	3035			 			
Low =	3008			 			
N =	5						
							
							
130 gr R-P Bronze Point 55.0 grains H4350 wtd lot 22655 R-P cases WLR OAL 3.250"
							
29 Dec 2011 T =  50 °F 					
							
Ave Vel =	2732						
Std Dev =	36						
ES =	102						
High =	2790			 			
Low =	2688			 			
N =	6						
							
							
130 gr Nosler BT  55.0 grains H4350 wtd lot 22655 R-P cases WLR OAL 3.3"	
							
29 Dec 2011 T =  50 °F 					
							
Ave Vel =	2833		                                                    	 			
Std Dev =	15			 			
ES =	39			 			
High =	2848			 			
Low =	2809			 			
N =	5						
							
							
150 gr Speer Flat Base  53.0 grains H4350 wtd lot 22655 R-P cases WLR OAL 3.250"
							
29 Dec 2011 T =  51 °F 					
							
Ave Vel =	2704		                                                       	 			
Std Dev =	18			 			
ES =	49			 			
High =	2727			 			
Low =	2678		         	 			
N =	5						
							
							
130 gr Winchester Power Point SP Factory 				
							
29 Dec 2011 T =  51 °F					
							
Ave Vel =	2789			 			
Std Dev =	17			 			
ES =	42			 			
High =	2809			 			
Low =	2767			 			
N =	5						
							
							
130 gr Federal Hi Shok Factory					
							
29 Dec 2011 T =  51 °F					
							
Ave Vel =	3028			 			
Std Dev =	38			 			
ES =	103			 			
High =	3088			 			
Low =	2985			 			
N =	5						

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